4.7 Article

Visible-light-driven photocatalytic degradation of dye and antibiotics by activated biochar composited with K+ doped g-C3N4: Effects, mechanisms, actual wastewater treatment and disinfection

Related references

Note: Only part of the references are listed.
Article Engineering, Multidisciplinary

In situ fabrication of metal-organic framework derived hybrid nanozymes for enhanced nanozyme-photothermal therapy of bacteria-infected wounds

Xin Wang et al.

Summary: A novel metal-organic framework (MOF)-derived hybrid nanozymes strategy was reported for enhanced nanozyme-photothermal therapy (NPT) in treating infectious diseases. This strategy improved antibacterial effects and reduced adverse reactions by decorating platinum nanozymes on Zn-based photosensitizer. Experimental results confirmed the excellent antibacterial properties of the MOF-derived hybrid nanozymes, suggesting a promising antibacterial candidate with minimal adverse effects for biomedical applications.

COMPOSITES PART B-ENGINEERING (2022)

Article Engineering, Environmental

Strongly coupled cobalt/oxygen co-doped porous g-C3N4 heterostructure with abundant oxygen vacancies modulated the peroxymonosulfate activation pathway

Jian Ye et al.

Summary: The highly dispersed Co-O@CN-150 heterostructure was successfully fabricated, which not only regulated the PMS activation pathway and provided more active sites, but also achieved complete degradation of ofloxacin within 20 minutes and self-cleaning performance.

CHEMICAL ENGINEERING JOURNAL (2022)

Article Environmental Sciences

Boosting photocatalytic reduction of nitrate to ammonia enabled by perovskite/biochar nanocomposites with oxygen defects and O-containing functional groups

Wei Liu et al.

Summary: Photocatalytic ammonia synthesis from waste nitrate using nanocomposites has been investigated in this study. The LaFeO3/biochar nanocomposites were successfully synthesized by co-pyrolysis of lotus biomass and Fe/La salts. The nanocomposites showed high nitrate conversion and ammonia selectivity under visible light irradiation, indicating their potential application in water treatment.

CHEMOSPHERE (2022)

Article Environmental Sciences

Coupling band structure and oxidation-reduction potential to expound photodegradation performance difference of biochar-derived dissolved black carbon for organic pollutants under light irradiation

Ying Guo et al.

Summary: The difference in photodegradation performance of rice straw biochar-derived dissolved black carbon (DBC) for Tetracycline and Methylene Blue under visible light irradiation has been investigated. Tetracycline is more easily degraded by DBC compared to Methylene Blue. Singlet oxygen (O-1(2)), superoxide radicals (center dot O-2(-)), holes (h(+)), and triplet DBC ((DBC)-D-3*) contribute to the degradation of Tetracycline by DBC, while only singlet oxygen (O-1(2)), superoxide radicals (center dot O-2(-)), and (DBC)-D-3* are involved in the degradation of Methylene Blue by DBC. Tetracycline is more easily oxidized and Methylene Blue is more easily reduced. The interaction between DBC and Tetracycline is stronger compared to the interaction between DBC and Methylene Blue.

SCIENCE OF THE TOTAL ENVIRONMENT (2022)

Review Environmental Sciences

The potential of biochar-photocatalytic nanocomposites for removal of organic micropollutants from wastewater

Jemal Fito et al.

Summary: Biochar-photocatalyst nanocomposites are attractive for water and wastewater treatment due to their synergistic effect of adsorption and photocatalysis. These nanocomposites have many advantages, including high photocatalytic activity, mechanical hardness, and thermal stability, making them ideal for photocatalytic applications. However, the industrial application of this technology is still in its early stages.

SCIENCE OF THE TOTAL ENVIRONMENT (2022)

Review Engineering, Environmental

Potential role of biochar in advanced oxidation processes: A sustainable approach

P. V. Nidheesh et al.

Summary: Biochar has gained extensive research attention in advanced oxidation processes due to its multifunctional role; pyrolysis is the most commonly used method for acquiring desired properties, and biochar can function as a catalyst, support material, and cathode material due to its high conductivity and porous structure; research focuses on activation mechanisms, ROS generation, sulfate radical mediated degradation, and future directions in the field.

CHEMICAL ENGINEERING JOURNAL (2021)

Review Chemistry, Multidisciplinary

Hydrothermal and Pyrolytic Conversion of Biomasses into Catalysts for Advanced Oxidation Treatments

Xi He et al.

Summary: This review introduces and compares two innovative biomass-based catalysts, HTCC and biochar, generated at different temperatures. HTCC is suitable for photocatalysis, while biochar is mainly used as an AOP catalyst for environmental treatment.

ADVANCED FUNCTIONAL MATERIALS (2021)

Article Chemistry, Multidisciplinary

Breaking Platinum Nanoparticles to Single-Atomic Pt-C4 Co-catalysts for Enhanced Solar-to-Hydrogen Conversion

Junqing Yan et al.

Summary: Effective transfer and utilization of photogenerated electrons is crucial for achieving highly efficient H-2 generation through photocatalytic water splitting. Single-atom Pt-doped CN as the co-catalyst to CuS demonstrates enhanced photocatalytic performance, reducing overpotential and interfacial resistance for improved water splitting efficiency.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

Article Engineering, Environmental

ZnO/biochar nanocomposites via solvent free ball milling for enhanced adsorption and photocatalytic degradation of methylene blue

Fang Yu et al.

Summary: Novel ZnO/biochar nanocomposites were successfully synthesized in this study using a facile ball-milling method. The ball milling process increased the mesopores and macropores of the nanocomposites, enhancing their adsorption capacity and photocatalytic ability for the removal of methylene blue. The nanocomposites showed high efficiency (up to 95.19%) in removing methylene blue from organic dye wastewater through a combination of adsorption and photocatalysis under visible light.

JOURNAL OF HAZARDOUS MATERIALS (2021)

Review Environmental Sciences

Carbon nitride-based photocatalysts for the mitigation of water pollution engendered by pharmaceutical compounds

Anju John et al.

Summary: In recent years, the harmful effects of active pharmaceutical ingredients (API) in water on aquatic and terrestrial life have gained more attention; traditional wastewater treatment methods are inadequate for removing these ingredients, and visible light-assisted semiconductor photocatalysis has emerged as a new approach to address this issue.

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2021)

Article Environmental Sciences

Graphitic carbon nitride/biochar composite synthesized by a facile ball-milling method for the adsorption and photocatalytic degradation of enrofloxacin

Yao Xiao et al.

Summary: The simultaneous adsorption and photocatalysis process achieved through the compounding of biochar and g-C3N4 showed enhanced removal performance of organic pollutant. The g-C3N4/biochar composites demonstrated higher adsorption and photocatalytic performance compared to pure g-C3N4, with the 50% g-C3N4/biochar composite showing the best removal efficiency for enrofloxacin (EFA) and total organic carbon (TOC). Radical trapping experiments indicated that superoxide radical and hole were the main active species in the photocatalytic process, and the composite maintained catalytic activity for EFA removal after multiple cycles.

JOURNAL OF ENVIRONMENTAL SCIENCES (2021)

Article Environmental Sciences

Recent progress in g-C3N4, TiO2 and ZnO based photocatalysts for dye degradation: Strategies to improve photocatalytic activity

Meena Nemiwal et al.

Summary: The review discusses the issue of water contamination by dyes and explores the potential solution using semiconductor-assisted materials and renewable solar energy. By developing semiconductor composite and heterojunction systems, the efficiency and stability of photocatalysts have been enhanced.

SCIENCE OF THE TOTAL ENVIRONMENT (2021)

Review Engineering, Environmental

New notion of biochar: A review on the mechanism of biochar applications in advannced oxidation processes

Xuerong Zhou et al.

Summary: Biochar, as an economical carbonaceous material, has emerged as an alternative candidate in catalysis field. Functional structures on biochar, such as oxygen-containing groups, defects, and persistent free radicals, have been identified as active sites in heterogeneous catalytic systems. Loaded metal components and doped heteroatoms can also act as active sites in the catalysis system.

CHEMICAL ENGINEERING JOURNAL (2021)

Article Engineering, Environmental

Facile construction of 2D g-C3N4 supported nanoflower-like NaBiO3 with direct Z-scheme heterojunctions and insight into its photocatalytic degradation of tetracycline

Yixiao Wu et al.

Summary: The composite photocatalyst g-C3N4/NaBiO3 showed superior performance in degrading tetracycline compared to individual g-C3N4 or NaBiO3, attributed to the accumulation of photoinduced electrons on g-C3N4 and holes on NaBiO3 for efficient generation of superoxide and hydroxyl radicals. The built-in electric field between g-C3N4 and NaBiO3 enhanced charge separation, leading to stable photodegradation activity for multiple cycles. This work not only provides a promising photocatalyst for antibiotic contaminants, but also sheds light on the photocatalytic removal of tetracycline.

JOURNAL OF HAZARDOUS MATERIALS (2021)

Article Environmental Sciences

Enhanced ammonium removal on biochar from a new forestry waste by ultrasonic activation: Characteristics, mechanisms and evaluation

Tongtong Wang et al.

Summary: The adsorption treatment of ammonium-containing wastewater has drawn global attention, with most methods relying on chemical modification. This study introduces physical activation using ultrasound to enhance the adsorption performance of Caragana korshinskii waste biochar. The ultrasonic activation significantly improves NH4+ adsorption efficiency, making it a cost-effective and environmentally friendly method for industrial applications.

SCIENCE OF THE TOTAL ENVIRONMENT (2021)

Article Engineering, Environmental

Effects of ball milling on the photochemistry of biochar: Enrofloxacin degradation and possible mechanisms

Yao Xiao et al.

CHEMICAL ENGINEERING JOURNAL (2020)

Article Environmental Sciences

Application of biochar and its composites in catalysis

Honghong Lyu et al.

CHEMOSPHERE (2020)

Article Multidisciplinary Sciences

Photocatalytic water splitting with a quantum efficiency of almost unity

Tsuyoshi Takata et al.

NATURE (2020)

Article Chemistry, Physical

Facile synthesis of novel ternary g-C3N4/ferrite/biochar hybrid photocatalyst for efficient degradation of methylene blue under visible-light irradiation

Jing Sun et al.

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS (2020)

Review Nanoscience & Nanotechnology

Detoxification of Endocrine Disruptors in Water Using Visible-Light-Active Nanostructures: A Review

Varsha UshaVipinachandran et al.

ACS APPLIED NANO MATERIALS (2020)

Article Engineering, Civil

Study of PAN Fiber and Iron ore Adsorbents for Arsenic Removal

Zulfiqar Ali Bhatti et al.

CIVIL ENGINEERING JOURNAL-TEHRAN (2020)

Article Engineering, Civil

Heavy Metal Removal Investigation in Conventional Activated Sludge Systems

Magdi Buaisha et al.

CIVIL ENGINEERING JOURNAL-TEHRAN (2020)

Article Chemistry, Physical

Nitrogen self-doped g-C3N4 nanosheets with tunable band structures for enhanced photocatalytic tetracycline degradation

Longbo Jiang et al.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2019)

Review Environmental Sciences

A comprehensive review of applications of magnetic graphene oxide based nanocomposites for sustainable water purification

Lakshmi Prasanna Lingamdinne et al.

JOURNAL OF ENVIRONMENTAL MANAGEMENT (2019)

Article Chemistry, Physical

New and stable g-C3N4/HAp composites as highly efficient photocatalysts for tetracycline fast degradation

Tianhong Xu et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2019)

Article Engineering, Chemical

In-suit preparation of CdSe quantum dots/porous channel biochar for improving photocatalytic activity for degradation of tetracycline

Qiuyue Men et al.

JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS (2019)

Article Engineering, Environmental

Adsorption and visible-light-driven photocatalytic properties of Ag3PO4/WO3 composites: A discussion of the mechanism

Xuanwen Liu et al.

CHEMICAL ENGINEERING JOURNAL (2019)

Article Chemistry, Physical

Metal-free efficient photocatalyst for stable visible-light photocatalytic degradation of refractory pollutant

Longbo Jiang et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2018)

Article Chemistry, Analytical

Biochars as Innovative Humidity Sensing Materials

Daniele Ziegler et al.

CHEMOSENSORS (2017)

Review Chemistry, Multidisciplinary

Heterojunction Photocatalysts

Jingxiang Low et al.

ADVANCED MATERIALS (2017)

Article Nanoscience & Nanotechnology

In Situ Construction of g-C3N4/g-C3N4 Metal-Free Heterojunction for Enhanced Visible-Light Photocatalysis

Fan Dong et al.

ACS APPLIED MATERIALS & INTERFACES (2013)