Related references
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Review
Energy & Fuels
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Summary: This article provides a review on the transition from Z-scheme to S-scheme photocatalytic materials, discussing different types of heterojunctions and charge transfer mechanisms. It also presents the synthetic routes to S-scheme heterojunctions and highlights their current applications in pollutant degradation, hydrogen production, and CO2 conversion. The commercialization status and existing readiness and bottlenecks of S-scheme heterojunctions are also discussed.
Article
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Pengfei Sun et al.
Summary: A visible-light-driven photocatalyst, DBS/CNNS, has been synthesized and applied for the elimination of high-concentration antibiotics in wastewater. It demonstrated efficient degradation of moxifloxacin (MOX) under visible light irradiation, breaking through the bottleneck of degrading high concentration antibiotics. The hydrophobic dodecyl benzene group and the formed sulfonyl group with strong electron-withdrawing property were beneficial for MOX enrichment and charge recombination suppression.
JOURNAL OF CLEANER PRODUCTION
(2023)
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Yi Liu et al.
Summary: Graphitic carbon nitride (GCN) has limited practical application due to low photocatalytic efficiency, but doping aminobenzaldehyde (ABA) into the skeleton can regulate its electronic structure and improve its photocatalytic performance. The optimized CNABA photocatalyst showed 3.1 times higher activity than pristine GCN. CNABA also exhibited excellent stability, photocatalytic reusability, and high elimination efficiency in tap water/natural lake water and sunlight conditions.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
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Mope E. Malefane et al.
Summary: In the past seven years, dual Z-scheme hetero-junctions have emerged as favorable approaches for enhanced charge carrier separation. The understanding of charge transfer dynamics plays a major role in evaluating their photoactivity and stability. This article proposes a universal charge transfer-based classification for dual Z-schemes and outlines methods for determining the charge transfer as proof of their existence. Additionally, the article introduces new macroscopic N-scheme and triple Z-scheme systems that can be adopted for various applications.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
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Lili Ma et al.
Summary: In this study, a bimetallic organic framework doped with Cu was fabricated and used as a catalyst for the degradation of tetracycline through the combined process of visible-light photocatalysis and persulfate oxidation. The results showed that the Cu-doped framework significantly improved the degradation efficiency of tetracycline under certain operating conditions.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
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Sheng Guo et al.
Summary: This study demonstrates the potential of 3D printing in wastewater purification through the preparation of a hierarchically porous copper material. The 3D-ZVC/PMS/Vis system exhibits excellent catalytic performance in degrading organic pollutants and achieves a high degradation efficiency of tetracycline. It also shows broad pH resistance, adaptability, stability, and reusability. The degradation process involves electrons and various reactive oxygen species, with O-1(2) playing a dominant role, and the toxicity of degradation products is significantly reduced.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
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Yuhan Li et al.
Summary: g-C3N4 is an attractive photocatalyst due to its visible-light response, abundance, stability and high yield. However, its limitation lies in the small electron mean free path and high symmetry, which hinder the separation and transfer of photogenerated carriers. Defect engineering on g-C3N4 can enhance the migration of photogenerated electrons through charge redistribution, surface microstructure changes, and creation of new electron excitation orbital direction.
Article
Chemistry, Physical
Yihui Li et al.
Summary: In this study, bimetallic Fe/Mn-loaded hydroxyl-rich biochar (FeMn-OH-BC) is synthesized to activate peroxymonosulfate (PMS) through nonradical-dominated pathways for degrading organic pollutants. The FeMn-OH-BC exhibits excellent catalytic activity at a wide range of pH conditions and is not inhibited by various anions. Electron paramagnetic resonance measurements and quenching tests confirm that O-1(2) is the major reactive oxygen species generated from FeMn-OH-BC based PMS activation.
Article
Chemistry, Physical
Jiamin Wei et al.
Summary: Researchers have developed a Fe (III) doping modified AgI/NH2-MIL-68(In/Fe) Z-scheme heterojunction composite with unique charge transmission performance. The optimized composite, ANM-50, showed significantly higher photocatalytic activity for tetra-cycline degradation compared to other materials used in the study. The photocatalytic procedure resulted in the generation of Ag nanoparticles, which acted as a charge transfer highway and improved charge transfer efficiency and stability of the heterojunction.
APPLIED SURFACE SCIENCE
(2023)
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Rohit Kumar et al.
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Energy & Fuels
Nayab Arif et al.
Summary: Researchers are working on improving the efficiency of artificial Z-scheme systems by engineering stable redox couples, enhancing light absorption capability, and discovering new cocatalysts. In this study, an Au decorated LaFeO3-g-C3N4-BiFeO3 (Au/LFO-CN-BFO) catalyst was fabricated as a dual Z-scheme system for photocatalytic water splitting reactions, and it exhibited superior performance compared to other catalysts.
Review
Chemistry, Physical
Jia Jia et al.
Summary: Graphitic carbon nitride (g-C3N4)-based Z-scheme heterojunction photocatalysts have attracted significant research attention for solar energy conversion and environmental remediation. The unique features of efficient photocarrier separation, visible light response, and spatially separated redox reactive sites contribute to the enhanced photocatalytic performance. This review summarizes recent progress in the construction of g-C3N4-based Z-scheme photocatalysts, including coupling interfaces, hierarchical microstructures, defects and heteroatoms, dual Z-scheme design, and plasmonic and photothermal performances. Photocatalytic applications in water splitting, CO2 reduction, and pollutant degradation are discussed, along with existing challenges and future research opportunities.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
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Dongyu Tan et al.
Summary: A series of Z-scheme heterojunction g-C3N4/Bi5O7I composites were successfully synthesized using an electrostatic self-assembly method. The optimized 15%-g-C3N4/Bi5O7I exhibited efficient degradation of tetracycline under visible light irradiation, attributed to the generation of photo-induced h+ and O2•- radicals. The migration of photo-induced h+ and e- between g-C3N4 and Bi5O7I was investigated, and the degradation pathways and toxicological simulation of tetracycline were evaluated. The composite also demonstrated good stability and reusability, making it a promising photocatalyst for practical applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
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Dingyang Chen et al.
Summary: A novel hybrid nanostructure (Co3O4@PPy hybrids) was developed by encapsulating Co3O4 nanoparticles into continuous polypyrrole nanotubes. This hybrid structure exhibited enhanced catalytic activity for the degradation of tetracycline (TC) through the formation of confined spaces, effective electron transfer pathways, and suppression of cobalt ion loss.
Article
Engineering, Chemical
Hongfei Yin et al.
Summary: In this study, 0D/2D/1D AgI/BiOI/C3N5 dual Z-scheme heterojunctions with confined interface structures were successfully fabricated by combining a room-temperature precipitation strategy with an ion-exchange route. The photocatalytic activity of the as-prepared dual Z-scheme heterojunctions was evaluated by conducting the photodegradation of tetracycline hydrochloride (TCH) under simulated visible light illumination. The constructed dual Z-scheme heterojunctions exhibited superior catalytic activity compared to the single component and counterpart single Z-scheme heterojunctions.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
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Li Kan et al.
Summary: Graphitic carbon-doped alpha-Bi2O3/beta-Bi2O3/Bi5O7I ternary heterojunction photocatalysts were successfully synthesized via a simple and low-cost method using urea, malonic acid, and BiOIO3. The photocatalytic activity of the catalysts was evaluated by the degradation of Bisphenol A (BPA) under simulated sunlight irradiation. The graphitic carbon-doped alpha-Bi2O3/beta-Bi2O3/Bi5O7I photocatalysts exhibited significantly higher reaction rate constants compared to other catalysts, thanks to the synergistic effect of the heterojunction between different components and the efficient electron transfer efficiency of graphitic carbon. A dual S -scheme heterojunction mechanism was proposed to explain the excellent redox properties of the composites.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
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Hassan Sepehrmansourie et al.
Summary: Combining different metal-organic frameworks (MOFs) is a smart strategy for constructing hybrid MOFs. In this study, UiO-66(Zr)-on-MIL-125(Ti)-NH2 with g-C3N4 nanosheets was developed as an efficient photocatalyst for the Gomberg-Buchmann-Hey reaction under visible light irradiation. The presence of Zr and Ti metals in the MOF-on-MOF and g-C3N4 nanosheets enhances the separation of photogenerated electron-hole pairs, leading to improved photocatalytic performance.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
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Hassan Sepehrmansourie et al.
Summary: In this study, a double Z-scheme heterojunction material UiO-66/NH2-MIL-125/g-C3N4 was developed for the degradation of OFL antibiotics under visible light irradiation. The material exhibited high photocatalytic activity and a significantly higher degradation rate constant compared to pristine UiO-66/MIL-125. Radical trapping and EPR experiments confirmed the essential role of (OH)-O-center dot and O-center dot(2)- in OFL photodegradation. This research not only provides a novel approach to construct MOF on other MOFs but also offers a new method for removing emerging pollutants from wastewater.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
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Jiabao Gu et al.
Summary: A dual Z-scheme UNiMOF/BiVO4/S-C3N4 (NBSCN) photocatalyst with a 2D/3D/2D structure was successfully constructed in this study. NBSCN outperforms single and binary composites in photocatalytic tetracycline pho-todegradation and Cr(VI) photoreduction due to the synergistic effect of adsorption and photocatalysis.
APPLIED SURFACE SCIENCE
(2023)
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Jiazhen Cao et al.
Summary: This study presents a novel approach to fabricate Ag-based photocatalysts using waste mussel shells, which demonstrates excellent photocatalytic activity and opens up new possibilities for the high value reutilization of waste shells in environmental remediation.
CHEMICAL ENGINEERING JOURNAL
(2023)
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Lijun Guo et al.
Summary: In this study, a low-cost and stable bimetallic biochar was synthesized and used for tetracycline degradation. The optimized bimetallic biochar showed excellent catalytic activity, which was significantly higher than other materials. The synergistic effects of iron and cobalt were found to be the main reason for the enhanced catalytic performance.
CHEMICAL ENGINEERING JOURNAL
(2023)
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Engineering, Environmental
Yutang Yu et al.
Summary: Graphitic carbon nitride (g-C3N4)-based nanomaterials have unique properties and have attracted much attention. This review summarizes the advances in g-C3N4 based materials, including synthesis, modification, adsorption and photocatalysis mechanism, and environmental applications. The review focuses on the environmental applications using g-C3N4 based composite and provides valuable insights for researchers in the field.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Engineering, Environmental
Adnan Ahmad et al.
Summary: This review examines the role of carbon-based materials in the development of photocatalytic air purification systems. It discusses various carbon materials and their properties in relation to VOC mineralization, as well as the fundamentals of photocatalytic oxidation (PCO), factors affecting catalyst performance, and degradation mechanisms. The future of technology development in this area is also explored.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Chunyan Hu et al.
Summary: A novel photo-Fenton catalyst FGN with dual Z-scheme heterojunction was successfully prepared and it showed excellent degradation performance towards tetracycline. The optimized preparation conditions and characterization analyses confirmed the successful synthesis of FGN. The experimental results demonstrated that FGN had better light absorption ability, higher separation efficiency of photoelectrons and holes, larger specific surface area, and higher pore capacity compared to other catalysts. The effects of experimental conditions on the degradation performance were investigated and three degradation pathways of tetracycline were proposed. The structural stability and catalytic active sites of FGN were explored by comparing the XRD and XPS spectra. Additionally, the mechanism of the dual Z-scheme heterojunction was proved through various experimental methods.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Wenxia Wang et al.
Summary: Rational design and synthesis of highly efficient photocatalysts with positive exciton splitting and interfacial charge transfer is essential for environmental applications. In this study, a novel Ag-bridged dual Z-scheme g-C 3 N 4 /BiOI/AgI plasmonic heterojunction was successfully synthesized, demonstrating exceptional photocatalytic degradation efficiency of tetracycline in water and good stability. The improved performance and stability were attributed to the highly ordered 3D porous framework, fast electron transfer of dual Z-scheme heterojunction, desirable photocatalytic performance of BiOI/AgI and synergistic effect of Ag plasmas. This research provides new insights and guidance for designing novel structural photocatalysts for environmental applications.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2023)
Article
Chemistry, Physical
Hamza Ighnih et al.
Summary: This study synthesized a new eco-friendly photocatalyst nanocomposite, BiOBr@Kaolinite, through a simple co-precipitation method. The nanocomposite was characterized using various techniques to determine its crystal phase, functional groups, morphology, composition, chemical states, optical properties, and band gap energy. The nanocomposite exhibited efficient photodegradation of Rhodamine B dye under sunlight irradiation due to the charge transfer from kaolinite to BiOBr nanoparticles. This study provides a potential application for the degradation of toxic organic pollutants in wastewater.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Article
Chemistry, Physical
Cheng Jin et al.
Summary: In this study, a near-infrared light-responsive antibacterial material was successfully constructed. This material, consisting of metal oxide nanomaterials, photosensitizers, and conductive polymers, achieved bidirectional transfer of hot-electrons under near-infrared light irradiation, increasing the carrier concentration and enhancing the chemical activity and photothermal conversion efficiency. The newly developed material showed high sterilization efficacy against Escherichia coli.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Physical
R. Haounati et al.
Summary: In this study, a Z-scheme heterostructures' nanocomposite was successfully prepared using a co-precipitation method. The nanocomposite was characterized and found to have Fe3O4, Ag3PO4, and g-C3N4 nanoparticles on the surface of sepiolite. The g-C3N4/Fe3O4/Ag3PO4 @Sep nanocomposite exhibited significantly better photocatalytic performance compared to pure g-C3N4, gC3N4 @Sep, and g-C3N4/Ag3PO4 @Sep. The enhancement in photocatalytic activity was attributed to the synergistic effects of the Z-scheme heterojunction construction, improving light usage and charge carrier migration rate. The study provides important insights into the design and synthesis of Z-scheme nano-composite heterojunctions for efficient photocatalytic applications.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Engineering, Environmental
Liquan Wang et al.
Summary: A new type of peroxymonosulfate (PMS) activator, phosphorus-doped carbon nitride (P-C3N4), was prepared using a simple thermal shrinkage method. Phosphorus doping in graphite-phase carbon nitride (g-C3N4) was achieved by replacing carbon atoms in its triazine ring structure with phosphorus, which did not alter the overall structure of g-C3N4. The phosphorus doping improved the surface electronic structure and pore structure optimization of g-C3N4, resulting in high efficiency for tetracycline (TC) degradation in the P-C3N4/PMS system. The study also proposed a mechanism for PMS activation using P-C3N4, and demonstrated that TC degradation occurred via ring-opening, hydroxylation, deamination, and dealkylation reactions.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Engineering, Environmental
Zhe Huang et al.
Summary: A large amount of CO2 is produced annually due to the mineralization of antibiotics, accelerating carbon emission peaks. By avoiding complete mineralization and focusing on usable intermediates in the photodegradation process, excellent effluent resource utilization and carbon reduction can be achieved. This study classified and discussed representative intermediate products of tetracycline (TC), oxytetracycline (OTC), and doxycycline (DC) generated during the photodegradation process using TiO2-based photocatalysts, and investigated the influencing factors and environmental toxicity of these intermediates.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Environmental Sciences
Ying Xiong et al.
Summary: The study investigated the interaction between endogenetic biochar-derived dissolved organic matter (BDOM) and pollutants in the environment. The results showed that BDOM with weaker aromaticity and higher molecular weight was preferentially released, leading to changes in the structural properties of biochar that weakened TC adsorption. Additionally, the released BDOM could form a complex with TC in solution to prevent TC adsorption on biochar.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Environmental
Junhao Lan et al.
Summary: In this study, a novel magnetic material of Fe/P-NPGC was successfully fabricated as an efficient peroxymonosulfate activation catalyst to remove tetracycline hydrochloride. Fe2P and graphitic N exhibited excellent electron transfer efficiency, improving the activation of PMS and generating an efficient non-radical pathway.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Linlin Dong et al.
Summary: In this study, a laminated electrocatalyst was constructed to enhance the electrocatalytic degradation of organic wastewater. The Ti/ZnFe2O4/ Ce-PbO2 (TZCP) showed higher electrocatalytic activity compared to Ti/ZnFe2O4 (TZ) and Ti/Ce-PbO2 (TCP), attributed to its higher oxygen evolution potential, lower charges transfer resistance, and larger electrochemical active surface area. Furthermore, TZCP exhibited excellent stability.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Twinkle Garg et al.
Summary: Novel direct dual Z-scheme CN/SnO2/CoFe2O4 heterostructures were fabricated and employed for photocatalytic degradation and fluorescence detection. CSnCo-0.5 exhibited exceptional photocatalytic capability and high selectivity and sensitivity for the fluorescence sensing of Hg2+, DXR, and PNP.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Zhoujie Pi et al.
Summary: NHGBC-800 showed excellent adsorption performance and PDS activation ability, allowing for simultaneous removal of organic contaminants and regeneration of the adsorbent. Furthermore, NHGBC-800 maintained good performance under different pH conditions and in the presence of inorganic anions.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Environmental Sciences
Ye Yuan et al.
Summary: The study successfully synthesized a ternary Bi7O9I3/g-C3N4/Bi3O4Cl photocatalytic system for the degradation of phenol, achieving a high TOC removal rate. Experimental results determined the apparent rate constant for phenol decay to be 0.0211 min(-1), and proposed a possible degradation pathway.
Article
Chemistry, Multidisciplinary
Rohit Kumar et al.
Summary: Growing pollution and high energy demand are major challenges for humans. Water pollution caused by industrial waste and irresponsible human activities is a significant problem. Photocatalysis, utilizing solar light as an energy source, is emerging as an efficient alternative for energy and water purification. However, photocatalysts face limitations such as photocarriers recombination, low surface area, and limited light absorption. Modifications like defect modifications and heterojunctions can be employed to overcome these limitations. Among them, the Z-scheme heterojunctions are an effective way to improve the performance of photocatalysts. To further enhance their activity, a dual Z-scheme photocatalytic scheme has been developed. This review discusses different types of dual Z-schemes and their applications in water purification, as well as future research prospects.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Engineering, Chemical
Yuhan Wang et al.
Summary: A series of environmentally friendly and cost-effective ZnFe2O4/Bi2O2CO3/BiOBr double Z-scheme heterojunctions were fabricated, and they exhibited excellent photocatalytic degradation performance and effective activation of permonosulfate.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Physical
Xiaoming Peng et al.
Summary: In this study, a graphene-like biochar was used to construct a Z-scheme heterojunction for the photocatalytic degradation of tetracycline. The prepared hybrid system showed enhanced degradation efficiency compared to other heterojunctions. The mechanisms of photoinduced electron transfer pathways and photocatalytic degradation were investigated.
CATALYSIS SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Lihong Wei et al.
Summary: In this study, a two-dimensional BiVO4/BiOBr photocatalyst was designed with high specific surface area and efficient electron transfer performance. It showed high degradation efficiency for tetracycline under visible light illumination.
Article
Nanoscience & Nanotechnology
Jingying Chen et al.
Summary: This study synthesized a superior visible-light-driven photocatalyst comprising a red phosphorus nanodot-modified carbon nitride nanotube heterostructure for bacterial inactivation. The optimized photocatalyst rapidly and completely destroyed Escherichia coli and Staphylococcus aureus under white LED irradiation. The efficient photocatalytic activity was attributed to the unique heterojunction structure and broad absorption spectra.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Physical
Poulomi Sarkar et al.
Summary: A ternary dual Z-scheme composite material was synthesized and its photocatalytic performance under visible light was explored. The catalyst showed effective removal of pollutants under specific conditions and demonstrated excellent performance in separating photogenerated charge carriers.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Engineering, Environmental
Zi-Jun Chen et al.
Summary: The construction of S-scheme heterojunction has been proven to be a promising method to improve the degradation performance of photocatalysts. In this study, Ag2CO3/Bi4O5I2/g-C3N4 dual S-scheme heterojunction material was designed and constructed, showing remarkably enhanced photocatalytic performance in tetracycline degradation. The study expands the application range of g-C3N4 material and discusses the reaction mechanism in detail.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Zhibin Wu et al.
Summary: In this study, a porous thin layered Fe, Co and O co-doped g-C3N4 material (FCOCN) was synthesized and used for tetracycline (TC) degradation. The results showed that FCOCN had higher degradation efficiency and kinetic constant in the presence of persulfate (PS). The efficiency of the reaction was improved by modulating the electronic structure and specific surface area of the material. FCOCN also exhibited good degradation performance for organic compounds in water and showed high TC elimination in various matrices.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Hang Yang et al.
Summary: This study successfully prepared S-scheme ACO/ZFO nanofibers heterojunction photocatalyst, which has higher specific surface area and more exposed active sites. The successful construction of S-scheme heterojunction effectively inhibits the recombination of photoelectron-hole pairs and generates more active groups, showing superior redox ability. The ACO/ZFO composites exhibit excellent photocatalytic performance under the enhancement of multiple properties.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Engineering, Environmental
Ran Duan et al.
Summary: Tetracycline has been detected in various environments, leading to the development of resistance in bacterial populations. This study fabricated soybean straw biochars (SSBs) at different pyrolysis temperatures and used them as activators for the degradation of tetracycline and disinfection of tetracycline-resistant Escherichia coli. The results showed that the purification effect of SSBs depended on the pyrolysis temperature, with SSB1000/PS system exhibiting superior degradation and disinfection capabilities. The purification mechanisms of tetracycline and Escherichia coli were found to be different, with tetracycline degradation mainly relying on surface-bound radicals and bactericidal activity attributed to free SO4 center dot- in bulk solutions. The catalytic performance of SSB1000 was attributed to its unique characteristics, such as large mesopore volumes, high C=O content, low interfacial charge transfer resistance, and strong electron donating capacity.
Article
Chemistry, Multidisciplinary
Lisi Xie et al.
Summary: A novel BTO/CN/BOB composite photocatalyst was synthesized by a solvothermal-mechanical mixed thermal method, which showed enhanced photocatalytic activity for antibiotic degradation. The possible degradation pathway and electron transfer mechanism of the dual Z-scheme heterojunction were proposed.
Review
Materials Science, Multidisciplinary
Yunfeng Li et al.
Summary: With the rapid development of economy and modern industry, serious environmental pollution and energy shortage have become major urgent challenges to the human society. Photocatalysis is a promising technology to provide green energy. However, the limitations of g-C 3 N 4 , such as fast recombination of charges, limited light response range, and weak oxidation ability, restrict its photocatalytic performance. The construction of heterojunctions with g-C 3 N 4 and other semiconductor materials can effectively address these issues and improve the photocatalytic performance.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Chemical
Chen Yang et al.
Summary: Four different crystalline phases of MnO2 catalysts were prepared for the effective activation of periodate in tetracycline hydrochloride degradation. Delta-MnO2 exhibited superior catalytic activity, attributed to the crucial role of oxygen vacancy in periodate activation on the MnO2 surface.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Pengfei Zhu et al.
Summary: A novel visible light response Nd2Sn2O7/Bi2Sn2O7/Ag3PO4 composite photocatalyst with double Z-type heterojunction was successfully synthesized. The photocatalytic properties, morphology, composition, and optical properties of the catalysts were investigated. The NSO/BSO/APO-30 composite photocatalyst showed high degradation efficiency for tetracycline hydrochloride under visible light irradiation, which could be attributed to its unique double Z-type heterojunction structure.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Shuhang Wang et al.
Summary: A novel ternary AgI/ZnIn2S4/BiVO4 composite photocatalyst (AZB) was successfully prepared and characterized. The photocatalytic activity of AZB was evaluated for tetracycline degradation, showing a high degradation rate of 91.44% within 150 min. The AZB heterojunction exhibited outstanding performance, with reaction rate constants 4.68, 3.27, and 3.27 times higher than that of pure BiVO4, AgI, and ZnIn2S4 respectively. Active species trapping experiments and ESR analysis supported the proposed dual Z-Scheme pathways for efficient charge separation. This research provides insights for the design of ternary dual Z-scheme heterojunctions with enhanced photo-absorption, charge separation, and photodegradation for environmental remediation.
ARABIAN JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Physical
Hongwei He et al.
Summary: A novel dual Z-scheme heterojunction photocatalyst PDIP/WO3@CN-Br was designed to efficiently remove tetracycline contaminants in water resources. This catalyst showed improved degradation efficiency and stability, and provided a promising approach for full utilization of solar energy and enhanced charge separation.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Engineering, Chemical
Engin Gurtekin et al.
Summary: This study investigated the effect of inorganic anions on the degradation and mineralization of tetracycline and oxytetracycline using the Fenton process. The results showed that the degradation of both antibiotics reached 100% at the studied inorganic anion concentrations. However, the degree of mineralization was influenced by different ion concentrations, with both increases and decreases observed.
DESALINATION AND WATER TREATMENT
(2022)
Article
Chemistry, Multidisciplinary
Lihong Wei et al.
Summary: This study successfully designed a novel ternary photocatalyst with rich specific surface area and high degradation efficiency by anchoring 2D BiVO4/BiOBr flakes with dual Z-scheme mechanism onto the surface of UIO-66-NH2.
Review
Environmental Sciences
Xiaolu Liu et al.
Summary: Graphitic carbon nitride (g-C3N4) has high thermal stability and a moderate band gap, but its performance is limited by issues like insufficient absorption of visible light. Element doping is an effective strategy to enhance its photocatalytic properties and improve performance.
CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Physical
Dashi Lei et al.
Summary: The rapid and effective treatment of As(III) wastewater was achieved by a Z-Scheme photocatalyst activated through PMS. Fe atoms and Ag nanoparticles played crucial roles in As(III) adsorption and PMS activation. The dual active sites on the photocatalyst effectively facilitated the fast oxidation of As(III).
APPLIED SURFACE SCIENCE
(2021)
Article
Engineering, Chemical
R. Haounati et al.
Summary: A Z-scheme Fe-3 O-4/Ag-3 PO4 @Sep magnetic nanocomposite photocatalyst was prepared using an eco-friendly coprecipitation method. Various analytical methods were used to evaluate the structure, morphology, and optical absorption properties of the photocatalyst. It was found that the catalyst exhibited enhanced stability and activity, with a reduced band gap energy and significantly improved dye degradation rate compared to pure Fe-3 O-4 and bare Ag-3 PO4.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Environmental
Zhongran Dai et al.
Summary: The ZnFe2O4/g-C3N4 (ZFOCN) step-scheme heterojunction synthesized in this study showed excellent performance for both adsorption and photocatalysis of U(VI) removal in aqueous solution. The adsorption process of U(VI) by ZFOCN and its photoreduction mechanism were investigated, and the results indicated that ZFOCN has strong visible light absorbability and a narrow band gap, leading to high removal efficiency and stability for U(VI).
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Sunita Kumari et al.
Summary: In this study, a synthetic strategy was developed to functionalize Ni-S nanostructures using a simple precipitation method, leading to selective adsorption of dyes and antibiotics. The functionalized nanostructures exhibited significantly increased surface area and high adsorption capacities for various pollutants. The optimized adsorbent showed not only efficient adsorption performance, but also easy recyclability.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Chemical
Chongqing Wang et al.
Summary: Facile fabrication of carbon-based catalyst (Fe-MPC) derived from microplastics for efficient Fenton-like degradation of tetracycline (TC) has been achieved, showing superior catalytic performance. The study proposed possible degradation pathways of TC and introduced a novel catalytic resource for wastewater treatment by converting microplastics into Fenton-like catalyst.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Chemical
Ping Wei et al.
Summary: The newly prepared ZnFe2O4/Ag@Ag2CO3 photocatalyst showed excellent degradation performance on tetracycline, outperforming pure Ag@Ag2CO3 and ZnFe2O4. The optimum ternary photocatalyst demonstrated high degradation efficiency and stability, indicating its potential for efficient treatment of PPCPs in environmental water.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
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