4.7 Article

Photoelectrocatalytic degradation of tetracycline through C3N5/TiO2 nanotube arrays photoanode under visible light: Performance, DFT calculation and mechanism

Related references

Note: Only part of the references are listed.
Article Green & Sustainable Science & Technology

Z-scheme photocatalysis and photoelectrochemical platform with a Co3O4-CuO heterogeneous catalyst for the removal of water pollutants and generation of energy

Ramesh Reddy Nallapureddy et al.

Summary: The protection of the environment through the increased use of renewable energy sources is a global priority. Photocatalysis combined with heterojunction nanocomposites has been successful in achieving efficient dye degradation and water splitting. This study presents the fabrication and characterization of a Co3O4-CuO heterojunction composite for dye degradation and photo-electrochemical water splitting, which exhibited superior performance compared to pristine materials.

JOURNAL OF CLEANER PRODUCTION (2023)

Article Engineering, Environmental

New method for morphological identification and simultaneous quantification of multiple tetracyclines by a white fluorescent probe

Huachao Che et al.

Summary: In this study, white fluorescent Eu/Tb@CDs were successfully synthesized and applied for the identification and detection of four commonly used tetracycline antibiotics. The method showed high sensitivity and selectivity, enabling simultaneous morphological identification and quantitative detection in actual water samples, without interference from other pollutants.

JOURNAL OF HAZARDOUS MATERIALS (2023)

Article Engineering, Chemical

Coupling photocatalytic fuel cell based on S-scheme g-C3N4/TNAs photoanode with H2O2 activation for p-chloronitrobenzene degradation and simultaneous electricity generation under visible light

Wenjie Liu et al.

Summary: A photocatalytic fuel cell system using hydrogen peroxide as an assistant was constructed for the degradation of p-Chloronitrobenzene (p-CNB) and electricity generation under visible light. The system showed high stability and superior degradation and electricity generation performances, while alleviating the toxicity of p-CNB.

SEPARATION AND PURIFICATION TECHNOLOGY (2023)

Article Engineering, Chemical

Diethylenetriamine-CdS hybrid materials (CdS-DETA) loaded nitrogen-rich carbon nitride (g-C3N5) for enhanced hydrogen production and photocatalytic degradation: Enhancement based on band bending

Huixing Yang et al.

Summary: The proper design of photocatalysts is crucial for improving the performance of photocatalytic decomposition of water and degradation of pollutants. In this study, a composite material CdS-DETA@g-C3N5 was synthesized by combining nitrogen-rich carbon nitride with CdS-DETA, which exhibited significantly higher hydrogen evolution rate and OFLX degradation rate compared to other catalysts. The enhancements in performance were attributed to the enhancement of energy band bending, construction of a built-in electric field, and retention of high redox carriers.

SEPARATION AND PURIFICATION TECHNOLOGY (2023)

Article Chemistry, Physical

Enhanced visible light photoelectrocatalytic degradation of o-chloronitrobenzene through surface plasmonic Au nanoparticles and g-C3N4 co-modified TiO2 nanotube arrays photoanode

Shuaishuai Xin et al.

Summary: In this study, Au nanoparticles and graphitic carbon nitride co-modified TiO2 nanotube arrays photoanodes were fabricated to degrade o-chloronitrobenzene target pollutant in a photoelectrocatalytic system. The fabricated Au/g-C3N4/TNAs-0.20 photoanode showed superior optical and photoelectrochemical properties and increased dechlorination efficiency, leading to enhanced degradation and removal of total organic carbon. The presence of anions and humic acid inhibited the degradation process. The photogenerated species, such as electrons, O-2(-), holes, and OH, participated in the degradation process. The degradation pathway of o-CNB was inferred through GC-MS spectra and DFT calculation. The acute toxicity and bioaccumulation factor of o-CNB were effectively reduced by the photoelectrocatalytic degradation.

APPLIED CATALYSIS B-ENVIRONMENTAL (2023)

Article Chemistry, Physical

Modification of WO3 photoanode with NiFe-LDHs nanosheets array for efficient Photoelectrocatalytic removal of tetracycline

Xiaohan Zhang et al.

Summary: A novel WO3@NiFe-LDHs photoanode with enhanced PEC degradation performance was successfully synthesized by electrochemical depositing NiFe-LDHs nanosheets array on the surface of nanoplate WO3 photoanode. The NiFe-LDHs nanosheets formed a hetero-junction with WO3, providing mass transfer sites and improving charge separation. In addition, the NiFe-LDHs nanosheets captured TC, facilitating its degradation and enhancing the light absorbance of the photoanode.

APPLIED SURFACE SCIENCE (2023)

Article Engineering, Environmental

In-situ pyrolysis of Undaria pinnatifida as a green carbo-catalyst for degradation of organic contaminants: Role of inherent N and P in the degradation pathway

Sivasankar Annamalai et al.

Summary: Recent studies have shown that biochar derived from seaweed can effectively remove tetracycline from water bodies. The pyrolysis temperature of the biochar plays a crucial role in the degradation performance. It was found that biochar pyrolyzed at 800 degrees C could completely degrade tetracycline within 60 minutes. Furthermore, various reactive oxygen species, including hydroxyl radical, sulfate radical, and singlet oxygen, were formed in the system.

CHEMICAL ENGINEERING JOURNAL (2023)

Article Green & Sustainable Science & Technology

Ultra-stable and bifunctional free-standing SiC photoelectrocatalyst for water remediation

Shuang Liu et al.

Summary: In this study, an integrated N-doped 4H-SiC photoelectrocatalyst with a 3D nanohole structure was constructed via anodic oxidation process, and it exhibited excellent performance in the removal of heavy metal ions and organic pollutants in wastewater.

JOURNAL OF CLEANER PRODUCTION (2023)

Article Engineering, Environmental

Enrichment of tetracycline-degrading bacterial consortia: Microbial community succession and degradation characteristics and mechanism

Xiuli Chen et al.

Summary: Two TC-degrading microbial consortia were enriched from activated sludge and soil, showing high degradation capabilities under a wide pH range and at moderate/high temperatures. Metagenomic sequencing revealed genes related to TC biodegradation.

JOURNAL OF HAZARDOUS MATERIALS (2023)

Article Engineering, Chemical

One-step hydrothermal synthesis of Bi2WxMo1-xO6 solid solution with adjustable energy band coupling with g-C3N4: 2D/2D Z-scheme heterojunction for enhanced photocatalytic HCHO degradation under indoor conditions

Jingquan Wang et al.

Summary: In this study, 2D/2D Bi2WxMo1-xO6/g-C3N4 nanocomposites were synthesized using surfactant-assisted one-step hydrothermal method for the degradation of formaldehyde in simulated room environment. CTAC surfactant was used to control the morphologies of Bi2WxMo1-xO6 coupling with g-C3N4 nanosheets. The solid solution of W and Mo in Bi2WxMo1-xO6 reduced the energy band gap of Bi2WO6. Compared to Bi2W0.6Mo0.4O6 (43.1%) and g-C3N4 (23.2%), Bi2W0.6Mo0.4O6/g-C3N4 exhibited superior photocatalytic activity (92.4%) for formaldehyde degradation at an initial concentration of 1 ppm and relative humidity of 20%. The catalyst also demonstrated satisfactory stability with only a 5.5% decrease in degradation efficiency after five cycles. The enhanced HCHO conversion was attributed to the formation of a 2D/2D Z-scheme heterojunction between Bi2W0.6Mo0.4O6 and g-C3N4, which increased the accessible interface and promoted the separation of photo-generated carriers for oxidation of formaldehyde.

SEPARATION AND PURIFICATION TECHNOLOGY (2023)

Article Chemistry, Physical

A novel CoP@AAH cocatalyst leads to excellent stability and enhanced photocatalytic H2 evolution of CdS by structurally separating the photogenerated carriers

Junnan Tao et al.

Summary: A novel CoP@amorphous aluminum hydroxide (AAH) cocatalyst was developed to enhance the stability of CdS and structurally separate the photogenerated carriers. The optimized CdS/CoP@AAH hybrid catalyst exhibited high photocatalytic H2 evolution rate and apparent quantum efficiency, along with excellent cycle stability.

APPLIED CATALYSIS B-ENVIRONMENTAL (2023)

Article Engineering, Environmental

Preparation of XCu@TiO2 adsorbent for high-efficient PH3 removal in anaerobic environment and evaluation of desulfurization activity of deactivated adsorbent

Lijuan Jia et al.

Summary: In this study, a high-performance copper-modified adsorbent (XCu@TiO2) was prepared to efficiently remove PH3 under anaerobic conditions. The optimal adsorbent (30Cu@TiO2) exhibited the highest PH3 breakthrough capacity among all tested adsorbents. The deactivation of the adsorbent converted its active component CuO into the P-type semiconductor Cu3P, indicating that the deactivated adsorbent (Cu3P/TiO2) is a multifunctional material. XCu@TiO2 is a promising and efficient PH3 adsorbent that can effectively avoid the risk of secondary pollution during the treatment and regeneration of deactivated adsorbents.

CHEMICAL ENGINEERING JOURNAL (2023)

Article Engineering, Environmental

S-scheme tubular g-C3N4/BiOI heterojunctions for boosting photodegradation of tetracycline and Cr(VI): Mechanism insight, degradation pathway and DFT calculation

Kai Dou et al.

Summary: A unique tubular g-C3N4/BiOI S-scheme heterojunction with BiOI microspheres grown on the surface of 1D TCN was successfully prepared, and adjusting BiOI additive amount can effectively tune the electronic band structures and photocatalytic properties. The TCN/BiOI composite with a TCN:Bi3+ molar ratio of 1:2 shows the best photocatalytic performance, achieving high photodegradation efficiencies for tetracycline (TC) and Cr(VI) ions. The distinguished photocatalytic performance is attributed to the high-quality electron transport channels provided by the tubular structure and the effective separation of photogenerated carriers based on the S-scheme heterojunction.

CHEMICAL ENGINEERING JOURNAL (2023)

Article Engineering, Environmental

Unveiling the origin of high-efficiency charge transport effect of C3N5/C3N4 homojunction for activating peroxymonosulfate to degrade atrazine under visible light

Yaocheng Deng et al.

Summary: This study reports a C3N5/C3N4 homojunction (AT-CN) catalyst as an efficient photocatalyst for PMS activation. The AT-CN catalyst possesses an interlaced band structure, high-efficiency charge transfer, and PMS activation capability. Experimental results show that the reaction rate constants of atrazine in the AT-CN/PMS/Vis system increased significantly compared to other systems, resulting in a high atrazine removal efficiency of 97% within 60 minutes (under pH = 3). DFT calculations were performed to analyze the band structure, charge density difference, PMS adsorption behavior, and activation pathways of AT-CN, providing insights for designing nonmetal homojunctions in the photo-activated PMS process.

CHEMICAL ENGINEERING JOURNAL (2023)

Article Environmental Sciences

Direct Z-scheme heterojunction Bi/Bi2S3/?-MoO3 photoelectrocatalytic degradation of tetracycline under visible light

Litao Jia et al.

Summary: A novel Bi/Bi2S3/alpha-MoO3 heterostructure with a direct Z-scheme charge transfer mechanism was successfully assembled, showing low resistance, high optical response current, and the surface plasmon resonance effect. This unique photoanode achieved a high removal efficiency of tetracycline pollutants under visible light irradiation and exhibited excellent stability for practical applications in antibiotic degradation.

CHEMOSPHERE (2023)

Article Chemistry, Physical

Photoelectrocatalytic peroxymonosulfate activation over CoFe2O4-BiVO4 photoanode for environmental purification: Unveiling of multi-active sites, interfacial engineering and degradation pathways

Weihong Wang et al.

Summary: This study developed a CoFe2O4-BiVO4 photoanode based photoelectrocatalytic system for removing organic contaminants using peroxymonosulfate activation. The CoFe2O4 layer provided active sites for activation and accelerated charge separation for enhanced performance. The combination of CoFe2O4 layer on BiVO4 photoanode led to a significant improvement in photocurrent density and degradation efficiency, making it a promising strategy for green environmental applications.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2023)

Article Chemistry, Physical

Revealing the effects of transition metal doping on CoSe cocatalyst for enhancing photocatalytic H2 production

Shiwen Du et al.

Summary: Having an insight into the optimizations of intrinsic properties of cocatalysts via doping foreign atoms to promote solar-driven water splitting is important. Zero-dimensional/one-dimensional structured TMCoSe/CdS0.95Se0.05 was successfully synthesized, and the FeCoSe/CdS0.95Se0.05 photocatalyst showed the most excellent H2 evolution performance. The activity can be attributed to the Schottky-type heterojunction formed between FeCoSe cocatalyst and CdS0.95Se0.05, enhancing charge carrier separation and utilization.

APPLIED CATALYSIS B-ENVIRONMENTAL (2023)

Article Engineering, Chemical

Introducing oxygen-doped g-C3N4 onto g-C3N4/TiO2 heterojunction for efficient catalytic gatifloxacin degradation and H2O2 production

Wei Gan et al.

Summary: The development of efficient photocatalysts for solving environmental pollution and energy crisis is still challenging. In this study, a novel oxygen-doped g-C3N4 modified g-C3N4/TiO2 photocatalyst was prepared, which showed enhanced photocatalytic activity and efficient degradation of gatifloxacin.

SEPARATION AND PURIFICATION TECHNOLOGY (2023)

Article Engineering, Chemical

Three-dimensional (3D) MnMoO4@g-C3N4/CNT hybrid composite electrode for hybrid capacitive deionization

Vengatesan M. Rangaraj et al.

Summary: A hierarchical three-dimensional MnMoO4@g-C3N4/CNT hybrid ternary composite was synthesized. MnMoO4@g-C3N4/CNT and g-C3N4/CNT electrodes were used as cathode and anode in the hybrid capacitive deionization system. The MnMoO4@g-C3N4/CNT electrode showed a specific capacitance of 252.4 Fg(-1) and a high salt adsorption capacity of 43.6 mg.g(-1) in 1 M NaCl solution. The MnMoO4@g-C3N4/CNT // g-C3N4/CNT-based HCDI cell exhibited excellent cycling stability with a retention of 91% after 10 cycles.

SEPARATION AND PURIFICATION TECHNOLOGY (2023)

Article Engineering, Environmental

Recent progress of applied TiO2 photoelectrocatalysis for the degradation of organic pollutants in wastewaters

Enric Brillas et al.

Summary: Photoelectrocatalysis (PEC) is an electrochemical advanced oxidation process that combines photocatalysis and electrolysis. It utilizes semiconductor photocatalysts to generate electron-hole pairs and oxidation species for the removal of organic pollutants. This paper provides a comprehensive review of the application of PEC with TiO2 photoanodes for wastewater treatment, discussing the fundamentals, operating variables, recent advances, and future prospects of this technique.

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING (2023)

Article Engineering, Environmental

Three-dimensional C3N5/RGO aerogels with enhanced visible-light response and electron-hole separation efficiency for photocatalytic uranium reduction

Linzhen Wu et al.

Summary: Uranium is a critical resource in the nuclear fuel cycle and a global environmental pollutant with dual effects of radioactivity and chemical toxicity. Reducing soluble U(VI) to relatively immovable U(IV) through photocatalytic technology can effectively decrease environmental pollution and enhance photocatalytic efficiency. The novel C3N5/reduced graphene oxide (C3N5/RGO) aerogel photocatalyst, with its 3D macroscopic morphology and microscopic 2D/2D Mott Schottky heterostructure, demonstrates high uranium removal rates and pollution resistance, offering a feasible solution for treating wastewater with nuclear radioactivity.

CHEMICAL ENGINEERING JOURNAL (2022)

Article Engineering, Environmental

Metal-free 2D/2D C3N5/GO nanosheets with customized energy-level structure for radioactive nuclear wastewater treatment

Qi Meng et al.

Summary: Researchers prepared metal-free 2D/2D C3N5/GO nanosheets and customized a type-II heterojunction based on band bending theory to enhance uranium extraction capacity. The structure of C3N5 was explained through electron energy loss spectroscopy and synchrotron-based X-ray absorption fine structure, showing a expanded light response range compared to C3N4. Density functional theory was used to demonstrate the presence of alternating energy levels for continuous injection of photogenerated electrons into the surface of GO, resulting in effective electron-hole pair separation and increased material activity. The 2D/2D C3N5/GO heterojunction achieved a high uranium removal ratio of 96.1% even at low concentration and 93.4% after gamma-ray exposure, laying a foundation for future customization of nonmetal-based 2D/2D nanohybrids for uranium-containing wastewater enrichment.

JOURNAL OF HAZARDOUS MATERIALS (2022)

Article Chemistry, Physical

Coupling nitrogen/oxygen self-doped biomass porous carbon cathode catalyst with CuFeO2/biochar particle catalyst for the heterogeneous visible-light driven photo-electro-Fenton degradation of tetracycline

Shuaishuai Xin et al.

Summary: A heterogeneous visible-light driven photo-electro-Fenton system was developed using nitrogen/oxygen biomass self-doped porous carbon (NO/PC) cathode catalyst and CuFeO2/biochar particle catalyst to degrade tetracycline. By optimizing the CuFeO2/biochar loads, initial pH and current density, the energy consumption was reduced and tetracycline mineralization was promoted. The degradation pathway and Escherichia coli growth inhibition experiments showed that the catalytic degradation of the H-VL-PEF system alleviated the comprehensive toxicity of tetracycline.

APPLIED CATALYSIS B-ENVIRONMENTAL (2022)

Article Engineering, Multidisciplinary

2D/2D nitrogen-rich graphitic carbon nitride coupled Bi2WO6 S-scheme heterojunction for boosting photodegradation of tetracycline: Influencing factors, intermediates, and insights into the mechanism

Karunamoorthy Saravanakumar et al.

Summary: A novel two-dimensional 2D/2D Bi2WO6@g-C3N5 (BiW@CN) heterojunction with remarkable light-harvesting capability and enhanced photocatalytic performance for tetracycline degradation was designed and fabricated. The excellent enhancement activity of BiW@CN is attributed to the formation of an S-scheme heterojunction, promoting spatial charge separation and endowing reduction power to photogenerated electrons. This research provides a new platform for efficient 2D/2D S-scheme heterojunctions for environmental water pollution treatments.

COMPOSITES PART B-ENGINEERING (2022)

Article Chemistry, Physical

In situ electrochemical reduced Au loaded black TiO2 nanotubes for visible light photocatalysis

Ye Cheng et al.

Summary: Black TiO2 is a promising photocatalyst due to its ability to address the limitations of TiO2, such as low visible light absorption, insufficient solar-light utilization, and slow carrier separation. Researchers have proposed a convenient method to prepare Au-loaded black TiO2 nanotubes, which significantly enhance their visible light catalytic performance.

JOURNAL OF ALLOYS AND COMPOUNDS (2022)

Article Green & Sustainable Science & Technology

Adsorptive removal of sulfonamides, tetracyclines and quinolones from wastewater and water using carbon-based materials: Recent developments and future directions

Basanta Kumar Biswal et al.

Summary: This review critically analyzes the use of carbon based materials (biochar and hydrochar) for removing antibiotics from wastewater and water. Biochar and hydrochar both show excellent performance for adsorptive removal of antibiotics, with hydrochar having a higher adsorption capacity than biochar for tetracyclines. The key mechanisms for antibiotic adsorption onto biochar/hydrochar surfaces include 7C-7C electron donor-acceptor interactions and H-bonding. Thermodynamics studies indicate that the sorption process is mostly spontaneous and endothermic. Overall, the use of biochar/hydrochar for removing antibiotics from water has significant potential from both economic and environmental perspectives.

JOURNAL OF CLEANER PRODUCTION (2022)

Review Environmental Sciences

A comprehensive review on biodegradation of tetracyclines: Current research progress and prospect

Xiuli Chen et al.

Summary: The biodegradation of tetracyclines (TCs) is crucial in removing antibiotic pollution from the environment. Cultivation-based techniques can isolate microorganisms with degradation ability, and chemical analysis and molecular biology techniques help reveal the degradation mechanisms to assess ecological risks.

SCIENCE OF THE TOTAL ENVIRONMENT (2022)

Article Chemistry, Physical

Photo-Fenton degradation of tetracycline over Z-scheme Fe-g-C3N4/Bi2WO6 heterojunctions: Mechanism insight, degradation pathways and DFT calculation

Caihua Liu et al.

Summary: In this study, a Fe-g-C3N4/Bi2WO6 Z-scheme heterojunction was elaborately designed for the degradation of tetracycline (TC). The performance of H2O2 decomposition in the Z-scheme heterojunction was improved by the doping of iron, enhancing the transportability of photogenerated electrons and facilitating the spread of radicals. The study also found that O-1(2) and center dot O-2- were the main active species participating in the degradation process, according to efficacy analyses and experimental results.

APPLIED CATALYSIS B-ENVIRONMENTAL (2022)

Article Engineering, Chemical

Photoelectrocatalytic degradation of m-chloronitrobenzene through rGO/g-C3N4/TiO2 nanotube arrays photoelectrode under visible light: Performance, DFT calculation and mechanism

Chunlei Zhang et al.

Summary: In this study, a ternary photoelectrode (rGO/g-C3N4/TNAs) was prepared by loading g-C3N4 and rGO on the surface of TNAs for the PEC degradation of m-chloronitrobenzene under visible light. The ternary photoelectrode showed enhanced degradation efficiency, wider visible-light absorption range, higher carrier density, and good reusability and stability. Active species such as center dot OH, center dot O2- and h+ were identified for the degradation of m-CNB by the rGO/g-C3N4/TNAs-60 photoelectrode.

SEPARATION AND PURIFICATION TECHNOLOGY (2022)

Article Chemistry, Physical

Boosting of water splitting using the chemical energy simultaneously harvested from light, kinetic energy and electrical energy using N doped 4H-SiC nanohole arrays

Linlin Zhou et al.

Summary: A method of inducing piezopotential in N-doped 4H-SiC nanohole arrays for water splitting is proposed, achieving a significant enhancement in current density through regulation of charge transport behavior.

NANO ENERGY (2022)

Article Multidisciplinary Sciences

Bandgap energy modeling of the deformed ternary GaAs1-uNu by Artificial Neural Networks

A. Tarbi et al.

Summary: Researchers evaluate the bandgap energy of GaAsN material using the band anticrossing model and artificial neural networks method, considering the strain caused by lattice mismatch. This method makes GaAsN a potential material for the fabrication of ultrafast optical sensors.

HELIYON (2022)

Article Chemistry, Physical

Heterogeneous photo-electro-Fenton degradation of tetracycline through nitrogen/oxygen self-doped porous biochar supported CuFeO2 multifunctional cathode catalyst under visible light

Shuaishuai Xin et al.

Summary: By preparing nitrogen/oxygen self-doped porous biochar (NO/PBC) and CuFeO2 supported NO/PBC, the cathode catalysts for gas diffusion electrode (GDE) fabrication were obtained. The fabricated GDE showed excellent catalytic performance for tetracycline degradation in a heterogeneous photo-electro-Fenton system, achieved through H2O2 electrogeneration and activation of H2O2 to produce active radicals.

APPLIED CATALYSIS B-ENVIRONMENTAL (2022)

Article Engineering, Environmental

Z-type ZnAl-LDO/Ag2S heterojunction activated peroxysulfate to degrade tetracycline hydrochloride under visible light efficiently

Xiaofang Feng et al.

Summary: This study constructed a visible-light-driven ZnAl-LDO/Ag2S heterojunction composite material for efficient photocatalytic degradation of tetracycline hydrochloride. The effects of composition and reaction conditions on the degradation process were investigated, and the degradation mechanism was verified. The results show that this system has good degradation performance and stability under visible light, providing a foundation for the design and optimization of similar systems.

CHEMICAL ENGINEERING JOURNAL (2022)

Article Environmental Sciences

Activation of persulfate via Mn doped Mg/Al layered double hydroxide for effective degradation of organics: Insights from chemical and structural variability of catalyst

Jicheng Rui et al.

Summary: This study investigates the activation of peroxydisulfate (PDS) by layered double hydroxide (LDH) for degradation of organic pollutants. The results show that the addition of Mn2+ in Mg/Al-LDH can increase the catalytic sites, leading to a higher degradation efficiency of phenol. However, a higher content of Mn reduces the interlayer space and forms secondary Mn-related minerals, resulting in the decrease of degradation performance of phenol. The study also demonstrates that the degradation of phenol by LDH activated PDS follows a non-radical mechanism.

CHEMOSPHERE (2022)

Article Chemistry, Inorganic & Nuclear

Fabrication and study of a novel TiO2/g-C3N5 material and photocatalytic properties using methylene blue and tetracycline under visible light

Yuan Zhang et al.

Summary: Industrial applications of dyes cause increasing damage to natural ecosystems, and photocatalysis is a promising technology for treating these environmental pollutants. In this study, a composite material with excellent photocatalytic performance was successfully prepared, and a potential degradation mechanism was proposed.

INORGANIC CHEMISTRY COMMUNICATIONS (2022)

Article Chemistry, Physical

Designing oxygen vacancy mediated bismuth molybdate (Bi2MoO6)/N-rich carbon nitride (C3N5) S-scheme heterojunctions for boosted photocatalytic removal of tetracycline antibiotic and Cr(VI): Intermediate toxicity and mechanism insight

Shijie Li et al.

Summary: A novel S-scheme heterojunction of OVs mediated Bi2MoO6/C3N5 was fabricated by in-situ growing Bi2MoO6 nanoparticles with OVs on C3N5 nanosheets. The heterojunction exhibited superior visible-light photocatalytic performance for the removal of tetracycline and Cr(VI) due to efficient charge separation and enriched structural defects.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2022)

Article Engineering, Chemical

Coupling of CdS and g-C3N4 decorated dendritic fibrous nano-silica for efficient photocatalytic reduction of uranium (VI)

Fang Wang et al.

Summary: Photocatalytic reduction of uranium (VI) to uranium (IV) is an effective method for uranium pollution treatment. In this study, a fibrous photocatalyst with g-C3N4 decorated dendritic fibrous nano-silica coupled with CdS was fabricated, showing high efficiency for the photocatalytic reduction of uranium (VI) under solar irradiation in air, with the key role played by center dot O2-.

SEPARATION AND PURIFICATION TECHNOLOGY (2022)

Article Engineering, Chemical

Expeditious degradation of SMX by high-valent cobalt-oxo species derived from cobalt-doped C3N5-activated peroxymonosulfate with the assistance of visible light

Peng He et al.

Summary: With excellent performance, cobalt-doped C3N5 (C3N5-Co) has been synthesized and used as a catalyst in the degradation of SMX by activating PMS with visible light. The removal rate can reach 99.57% within 20 minutes. The system shows superior operability over a wide pH range and environmental suitability.

SEPARATION AND PURIFICATION TECHNOLOGY (2022)

Article Chemistry, Physical

Construction of rGO-coupled C3N4/C3N5 2D/2D Z-scheme heterojunction to accelerate charge separation for efficient visible light H2 evolution

Dong Liu et al.

Summary: A novel N-rich carbon nitride material C3N5 was designed and prepared in this study, which formed a sandwich heterojunction with C3N4, demonstrating a synergistic effect of electron-rich and hole-rich reservoirs. The 2D/2D heterojunction was applied to achieve efficient visible-light-responsive activity for H2 evolution reaction.

APPLIED CATALYSIS B-ENVIRONMENTAL (2022)

Article Engineering, Environmental

Constructing zirconium based metal-organic frameworks based electrically-driven self-cleaning membrane for removal of tetracycline: Effect of ligand substitution

Zhonglong Yin et al.

Summary: In this study, UiO-66-X membranes were used for the removal of tetracycline. Ligand substitution was found to affect the molecular weight cutoff and water flux of the membranes. The UiO-66-NO2/graphite/PVDF membrane showed excellent tetracycline removal and self-cleaning properties under low current density.

CHEMICAL ENGINEERING JOURNAL (2022)

Article Engineering, Environmental

Effective elimination of tetracycline antibiotics via photoactivated SR-AOP over vivianite: A new application approach of phosphorus recovery product from WWTP

Xiao-Hong Yi et al.

Summary: In this study, it was found that vivianite can effectively activate peroxodisulfate to produce reactive oxygen species and degrade tetracycline antibiotics. The results showed that vivianite achieved 100% removal of antibiotics and over 80% removal of total organic carbon under different light conditions within 30 minutes. The intermediate products were found to have lower aquatic toxicity compared to the original antibiotics.

CHEMICAL ENGINEERING JOURNAL (2022)

Article Environmental Sciences

Peroxymonosulfate-based photocatalytic oxidation of tetracycline by Fe2(MoO4)3/Cd0.5Ni0.5S heterostructure; DFT simulation

Ghulam Abbas Ashraf et al.

Summary: The current research focuses on developing novel semiconductor photocatalysts for the decomposition of tetracycline in water. The Fe-2(MoO4)(3)/Cd0.5Ni0.5S composite has been found to enhance the photocatalytic activity by confining PMS molecules and exhibiting greater piezocatalytic activity. This work provides a new approach for developing highly active photocatalysts for organic contaminant removal in water.

CHEMOSPHERE (2022)

Article Engineering, Environmental

Enhanced visible light photoelectrocatalytic degradation of tetracycline hydrochloride by I and P co-doped TiO2 photoelectrode

Dong Liu et al.

Summary: The study prepared I and P co-doped TiO2 materials for the first time, showing significantly improved photoelectrocatalytic activity. The highest activity was achieved when the doping content of P was 4 at% under visible light.

JOURNAL OF HAZARDOUS MATERIALS (2021)

Article Chemistry, Physical

Catalytic activation of peroxydisulfate by alfalfa-derived nitrogen self-doped porous carbon supported CuFeO2 for nimesulide degradation: Performance, mechanism and DFT calculation

Shuaishuai Xin et al.

Summary: Nitrogen self-doped porous carbons (NPCs) were prepared using alfalfa as raw material, and the CuFeO2/NPC composites showed excellent catalytic performance in degrading nimesulide by activating peroxydisulfate (PDS), with main reactive species being (OH)·, SO4·, and O-1(2).

APPLIED CATALYSIS B-ENVIRONMENTAL (2021)

Article Chemistry, Physical

Enhanced durability of nitric oxide removal on TiO2 (P25) under visible light: Enabled by the direct Z-scheme mechanism and enhanced structure defects through coupling with C3N5

Junlei Zhang et al.

Summary: A direct Z-scheme catalyst of TiO2(P25)-C3N5 with enhanced structural defects was designed, which showed excellent activity and durability in NO photooxidation under visible light. The main products of NO photooxidation in the system involving TiO2-C3N5 were identified as NO2 and NO3. Moreover, TiO2-C3N5 exhibited better activity and durability for NO photooxidation under higher relative humidity compared to P25 and C3N5.

APPLIED CATALYSIS B-ENVIRONMENTAL (2021)

Article Engineering, Environmental

Molten salt-assisted synthesis of Ce4O7/Bi4MoO9 heterojunction photocatalysts for Photo-Fenton degradation of tetracycline: Enhanced mechanism, degradation pathway and products toxicity assessment

Gui Yang et al.

Summary: Photo-Fenton as an advanced oxidation technology has been proven to be a multifunctional strategy for environmental remediation. In this study, a novel Ce4O7 modified Bi4MoO9 (C-BMO) Photo-Fenton heterojunction catalyst with in-built dual redox centers was successfully synthesized. The catalyst exhibited significantly enhanced degradation rate for tetracycline compared to pristine Bi4MoO9 and Ce4O7, mainly due to the formation of an intimate interface for efficient carrier transfer.

CHEMICAL ENGINEERING JOURNAL (2021)

Article Engineering, Environmental

A visible-light active p-n heterojunction NiFe-LDH/Co3O4 supported on Ni foam as photoanode for photoelectrocatalytic removal of contaminants

Weihua Fei et al.

Summary: A unique visible-light active Ni foam@NiFe-LDH/Co3O4 composite was successfully prepared, which can efficiently remove BPA and Cr(VI) from water. The modified photoanode showed enhanced catalytic performance and environmental purification potential.

JOURNAL OF HAZARDOUS MATERIALS (2021)

Article Chemistry, Inorganic & Nuclear

Highly efficient photoelectrocatalytic degradation of cefotaxime sodium on the MoSe2/TiO2 nanotubes photoanode with abundant oxygen vacancies

Tingting Li et al.

Summary: The MoSe2/TiO2 NTs exhibit excellent photoelectric properties and enhanced photoelectrocatalytic activity, attributed to abundant surface oxygen vacancies and efficient electron-hole transfer mechanism.

JOURNAL OF SOLID STATE CHEMISTRY (2021)

Article Environmental Sciences

Photoelectrocatalytic degradation of p-chloronitrobenzene by g-C3N4/TiO2 nanotube arrays photoelectrodes under visible light irradiation

Bingrui Ma et al.

Summary: The g-C3N4/TNAs photoelectrodes exhibit excellent visible-light response, efficient charges separation, and high redox potentials of electron/hole, which are favorable for p-CNB degradation. The simultaneous roles of reductive electrons and oxidized species, as well as the dependency on photo-generated holes and center dot OH for mineralization, were crucial during the dechlorination process. The Z-scheme g-C3N4/TNAs provided an efficient approach for simultaneous dechlorination and mineralization of refractory pollutants.

CHEMOSPHERE (2021)

Review Engineering, Environmental

A comprehensive review on catalysts for electrocatalytic and photoelectrocatalytic degradation of antibiotics

Suqing Wu et al.

Summary: This article reviews the progress and key parameters of electrocatalysis and photoelectrocatalysis for degrading antibiotics, including the performance of catalysts and the effects of experimental conditions such as current density and light intensity on the degradation efficiency and toxicity of products.

CHEMICAL ENGINEERING JOURNAL (2021)

Article Environmental Sciences

Enhanced heterogeneous photo-Fenton-like degradation of tetracycline over CuFeO2/biochar catalyst through accelerating electron transfer under visible light

Shuaishuai Xin et al.

Summary: The study prepared CuFeO2/biochar catalysts via hydrothermal technique and found that CuFeO2/biochar-1.0 containing 1.0 g biochar exhibited higher carrier density and longer photoelectron lifetime, leading to enhanced catalytic performance.

JOURNAL OF ENVIRONMENTAL MANAGEMENT (2021)

Article Chemistry, Physical

Experimental and DFT insights into the visible-light driving metal-free C3N5 activated persulfate system for efficient water purification

Junlei Zhang et al.

Summary: In this study, metal-free C3N5 was synthesized and used as an activator for PMS activation, exhibiting excellent degradation performance for EMs and water disinfection under visible light. This research provides a new environmentally-friendly option for efficient water purification through advanced oxidation processes.

APPLIED CATALYSIS B-ENVIRONMENTAL (2021)

Article Engineering, Chemical

Visible-light-driven photoelectrocatalytic degradation of p-chloronitrobenzene by BiOBr/TiO2 nanotube arrays photoelectrodes: Mechanisms, degradation pathway and DFT calculation

Bingrui Ma et al.

Summary: BiOBr modified TiO2 nanotube arrays photoelectrodes showed higher PEC degradation efficiency for p-chloronitrobenzene. Hydroxyl radical and photogenerated holes were the main active species responsible for degradation. However, the coexistence of dissolved anions and humic acid could decline p-CNB removal rate.

SEPARATION AND PURIFICATION TECHNOLOGY (2021)

Article Chemistry, Physical

Photoelectrochemical sensing of hydrogen peroxide using TiO2 nanotube arrays decorated with RGO/CdS

Li Li et al.

JOURNAL OF ALLOYS AND COMPOUNDS (2020)

Article Chemistry, Physical

MOF-derived hollow TiO2@C/FeTiO3 nanoparticles as photoanodes with enhanced full spectrum light PEC activities

Jian Wang et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2019)

Article Chemistry, Physical

Poly (3, 4-ethylenedioxythiophene) modified polyvinylidene fluoride membrane for visible photoelectrocatalysis and filtration

Jiadong Liu et al.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2019)

Article Engineering, Environmental

Photoelectrocatalytic degradation of 4-nonylphenol in water with WO3/TiO2 nanotube array photoelectrodes

Yanjun Xin et al.

CHEMICAL ENGINEERING JOURNAL (2014)

Article Chemistry, Analytical

Preparation and characterization of TiO2-NTs/SnO2-Sb electrodes by electrodeposition

Yong Chen et al.

JOURNAL OF ELECTROANALYTICAL CHEMISTRY (2010)