4.7 Article

Role variations of MnOx on monoclinic BiVO4 (110)/(040) facets for enhanced Photo-Fenton reactions

Related references

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

Low-temperature persulfate activation by powdered activated carbon for simultaneous destruction of perfluorinated carboxylic acids and 1,4-dioxane

Katherine E. Manz et al.

Summary: This study demonstrates that powdered activated carbon (PAC) can be used as a method of persulfate activation to effectively degrade perfluorooctanoic acid (PFOA) and 1,4-dioxane at different temperatures. The activation occurs at the surface of the PAC, as indicated by the increase in the PAC C:O ratio. Singlet oxygen was found to not be the main oxidizing species in the reaction. The combination of PAC and persulfate offers a low-cost treatment option for the simultaneous destruction of PFOA and 1,4-dioxane.

JOURNAL OF HAZARDOUS MATERIALS (2023)

Article Engineering, Environmental

Amorphous zirconium oxide activates peroxymonosulfate for selective degradation of organic compounds: Performance, mechanisms and structure-activity relationship

Xiaoyang Li et al.

Summary: The application of heterogeneous advanced oxidation processes (AOPs) in wastewater treatment is hindered by low oxidant utilization efficiency, slow catalytic cycling, and matrix interference. This study demonstrates that amorphous zirconium dioxide (aZrO2), a redox-inert metal oxide, can efficiently activate peroxymonosulfate (PMS) to degrade organic micropollutants even under low oxidant doses and complex matrices. The surface Zr(IV)-PMS* complex is identified as the principal reactive species, and the interaction between Zr atom and PMS leads to prolonged O-O bond and elevated oxidation potential for direct reaction with contaminants.

WATER RESEARCH (2023)

Article Engineering, Environmental

Modulating the electron structure of Co-3d in Co3O4-x/WO2.72 for boosting peroxymonosulfate activation and degradation of sulfamerazine: Roles of high-valence W and rich oxygen vacancies

Xudong Yang et al.

Summary: A hybrid material Co3O4-x/WO2.72 was prepared to modulate the electron structure of Co-3d, which exhibited high catalytic activity for degradation of organic contaminants, showing great potential for practical applications.

JOURNAL OF HAZARDOUS MATERIALS (2023)

Article Materials Science, Ceramics

Visible light induced photocatalytic activity of MnO2/BiVO4 for the degradation of organic dye and tetracycline

Maira Liaqat et al.

Summary: Alpha-MnO2/BiVO4 nanocomposites with different MnO2 contents (0-7 wt%) were successfully synthesized through a simple chemical method. The structure, morphology, and optical properties of the nanocomposites were studied using various analytical techniques. The photocatalytic efficiency of the nanocomposites was evaluated through the degradation of rhodamine B (RhB) and tetracycline (TC) under visible light irradiation (λ >= 420 nm). The 5% MnO2/BiVO4 (MnBV-5) photocatalyst exhibited the highest degradation efficiency and maintained good stability after five testing cycles.

CERAMICS INTERNATIONAL (2023)

Review Chemistry, Multidisciplinary

Visible Light-Induced Transition Metal Catalysis

Kelvin Pak Shing Cheung et al.

Summary: Visible light-induced transition metal catalysis has emerged as an important development in organic photocatalysis, leading to unprecedented transformations and improvements of known reactions. This method utilizes a single catalytic cycle to harness photon energy, and synergistically combines catalyst-substrate interaction with photoinduced processes.

CHEMICAL REVIEWS (2022)

Article Engineering, Environmental

Effects of Molecular Structure on Organic Contaminants' Degradation Efficiency and Dominant ROS in the Advanced Oxidation Process with Multiple ROS

Zhi-Hui Xie et al.

Summary: This study investigates the effects of molecular structure on the degradation efficiencies and dominant reactive oxygen species in advanced oxidation processes. The findings provide insights for improving the practical application of wastewater treatment.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2022)

Article Chemistry, Physical

N-doped carbon dots decorated 3D g-C3N4 for visible-light driven peroxydisulfate activation: Insights of non-radical route induced by Na plus doping

Xiaomei Liu et al.

Summary: A novel material, N-doped carbon dots decorated three-dimensional graphitic carbon nitride (NCDs/TCN), is synthesized and used for the activation of peroxydisulfate (PDS). Experimental and theoretical results demonstrate that this material can activate PDS through both radical and non-radical pathways, showing improved photocatalytic performance.

APPLIED CATALYSIS B-ENVIRONMENTAL (2022)

Article Engineering, Environmental

New insight into peroxymonosulfate activation by CoAl-LDH derived CoOOH: Oxygen vacancies rather than Co species redox pairs induced process

Hanxuan Zeng et al.

Summary: This study presents a facile self-sacrifice method to synthesize highly effective hexagonal CoOOH microplate (B-CoOOH) for organics elimination. The B-CoOOH/PMS system achieved a high degradation rate and displayed satisfactory recyclability, excellent physicochemical stability, and high mineralization efficiency.

CHEMICAL ENGINEERING JOURNAL (2022)

Article Engineering, Environmental

Peroxymonosulfate activation by surface-modified bismuth vanadate for ciprofloxacin abatement under visible light: Insights into the generation of singlet oxygen

Sha Chen et al.

Summary: Surface-modified BiVO4 catalysts with Lewis basic sites can generate O-1(2) under PMS activation, leading to efficient degradation of ciprofloxacin (CIP).

CHEMICAL ENGINEERING JOURNAL (2022)

Article Chemistry, Physical

Synergistic activation of peroxymonosulfate between Co and MnO for bisphenol A degradation with enhanced activity and stability

Yu Zhao et al.

Summary: A novel material Co/MnO-X@C was synthesized and used to activate PMS for BPA degradation. The results showed that Co/MnO-X@C exhibited high activity and low leaching rate, indicating the synergistic effect between Co and MnO. DFT calculations revealed the mechanism of PMS adsorption and activation on Co-modified MnO. This study provides effective materials and synergistic theory for environmental remediation.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2022)

Article Nanoscience & Nanotechnology

Facet Dependent Activity of Fe(III) Species Modified TiO2 for Simulated Sunlight Driven Fenton-like Reactions

Yang Zhao et al.

Summary: TiO2 crystals with different exposed facets are modified by depositing Fe(III) species. Fe-TiO2 with more (101) facets exposed shows enhanced photoactivity for Bisphenol A (BPA) degradation under simulated sunlight irradiation. This enhancement is attributed to the stronger interfacial charge transfer on Fe-TiO2 (101) and a faster Fe(III)/Fe(II) transformation rate. The accelerated generation of center dot OH and 1O2 on Fe-TiO2 (101) leads to better photoactivity.

ACS APPLIED MATERIALS & INTERFACES (2022)

Article Engineering, Environmental

Metallic NiSe cocatalyst decorated g-C3N4 with enhanced photocatalytic activity

Zhe Chen et al.

Summary: This study synthesized a non-noble metal NiSe modified g-C3N4 photocatalyst through an environmentally-friendly hydrothermal method, exhibiting superior hydrogen production ability and significant activity in degrading pollutants.

CHEMICAL ENGINEERING JOURNAL (2021)

Article Chemistry, Physical

Defect-engineered Co3O4 with porous multishelled hollow architecture enables boosted advanced oxidation processes

Ping Li et al.

Summary: The study highlights the development of high-efficiency catalysts through rational architectural design and defect engineering, presenting a defect-engineered Co3O4 catalyst with porous multishelled hollow architecture for considerably boosted degradation of recalcitrant organics. The special morphology of the catalyst contributes to active site exposure and mass diffusion, resulting in up to 46 times of catalytic enhancement compared to commercial Co3O4.

APPLIED CATALYSIS B-ENVIRONMENTAL (2021)

Article Chemistry, Physical

Sustainable redox processes induced by peroxymonosulfate and metal doping on amorphous manganese dioxide for nonradical degradation of water contaminants

Yangyang Yang et al.

Summary: The study found that copper-doped amorphous manganese oxide exhibited higher activity in organic oxidation reactions with peroxymonosulfate compared to crystalline manganese oxides, with more oxygen vacancies and a higher Mn4+/Mn3+ ratio, promoting reaction rates. This research provides new insights into the catalytic structure relationship in manganese-catalyzed oxidation reactions.

APPLIED CATALYSIS B-ENVIRONMENTAL (2021)

Article Chemistry, Physical

Au@CoS-BiVO4 {010} Constructed for Visible-Light-Assisted Peroxymonosulfate Activation

Yekun Ji et al.

Summary: A visible-light-Fenton-like reaction system was developed for the selective conversion of peroxymonosulfate to sulfate radical by doping Au@CoS on monoclinic BiVO4 {010} facets. The system enhanced visible-light response and charge separation, promoting the conversion of peroxymonosulfate to sulfate radical. The enhancement of the system was confirmed through various analyses, and in practical wastewater treatment, a high mineralization rate was achieved using CoS-Au-BiVO4 loaded on glass fiber.

CATALYSTS (2021)

Review Engineering, Environmental

Uncertainty and misinterpretation over identification, quantification and transformation of reactive species generated in catalytic oxidation processes: A review

Lingli Wang et al.

Summary: This review clarifies common mistakes and misinterpretations present in the literature regarding the identification of reactive radical species using quenching and electron paramagnetic resonance (EPR) tests. It aims to help researchers avoid errors when investigating catalytic oxidative mechanisms with these tests.

JOURNAL OF HAZARDOUS MATERIALS (2021)

Article Engineering, Environmental

Bamboo-like nitrogen-doped carbon nanotubes on iron mesh for electrochemically-assisted catalytic oxidation

Di Wu et al.

Summary: In this study, bamboo-like nitrogen-doped carbon nanotubes (BN-CNTs) were successfully deposited on etched iron mesh for electrochemically-assisted phenol degradation. The presence of structure defects and doped nitrogen atoms were found to be crucial for the high catalytic activity of BN-CNTs, and the electrochemical assistance effectively enhanced the activation efficiency.

JOURNAL OF HAZARDOUS MATERIALS (2021)

Article Chemistry, Multidisciplinary

Carbon Nitride Supported High-Loading Fe Single-Atom Catalyst for Activating of Peroxymonosulfate to Generate 1O2 with 100 % Selectivity

Long-Shuai Zhang et al.

Summary: A novel catalyst Fe-1/CN was developed to achieve 100% selective production of O-1(2) through activation of PMS, enabling highly selective and efficient degradation of organic pollutants.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

Article Engineering, Environmental

2D confinement freestanding graphene oxide composite membranes with enriched oxygen vacancies for enhanced organic contaminants removal via peroxymonosulfate activation

Jian Ye et al.

Summary: Introducing membrane filtration into advanced oxidation processes for environmental remediation shows promising potential. The fabricated FeCo@GCTs/GO composite membrane exhibited excellent performance in degrading pollutants and could be a new direction for wastewater purification.

JOURNAL OF HAZARDOUS MATERIALS (2021)

Article Environmental Sciences

Insight into the synergetic effect of photocatalysis and transition metal on sulfite activation: Different mechanisms for carbamazepine and diclofenac degradation

Yunyi Li et al.

Summary: The study reveals that transition metal and photocatalysis have a synergistic effect on S(IV) activation, but the effect is target-specific. The mechanism of degradation varies for different target substances, with differences in the impact of pH and coexisting anions.

SCIENCE OF THE TOTAL ENVIRONMENT (2021)

Article Chemistry, Physical

Photo-accelerated Co3+/Co2+ transformation on cobalt and phosphorus co-doped g-C3N4 for Fenton-like reaction

Xiaomei Liu et al.

Summary: Co and P co-doped g-C3N4 (Co, P-CN) synthesized by a facile one-pot pyrolysis method enhances light absorption and charge separation, promoting the photocatalytic activation of PDS. The chemical activation of doped Co2+ and the synergistic effect of photo-catalysis and chemical-catalysis result in the enhanced degradation of BPA with a reaction rate constant 7 times larger than pristine g-C3N4. This work provides an effective method for in situ regeneration of active low-valent transition metal ions and reveals the mechanism of synergistic activation of PDS for pollutant degradation.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

Article Engineering, Environmental

Solution plasma boosts facet -dependent photoactivity of decahedral BiVO 4

Guangshun Che et al.

CHEMICAL ENGINEERING JOURNAL (2020)

Article Engineering, Chemical

Dendritic BiVO4 decorated with MnOx co-catalyst as an efficient hierarchical catalyst for photocatalytic ozonation

Jin Yang et al.

FRONTIERS OF CHEMICAL SCIENCE AND ENGINEERING (2019)

Review Chemistry, Multidisciplinary

Elaborately Modified BiVO4 Photoanodes for Solar Water Splitting

Jin Hyun Kim et al.

ADVANCED MATERIALS (2019)

Review Chemistry, Physical

Nonradical reactions in environmental remediation processes: Uncertainty and challenges

Xiaoguang Duan et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2018)

Article Chemistry, Physical

Role of Polarons in Water Splitting: The Case of BiVO4

Julia Wiktor et al.

ACS ENERGY LETTERS (2018)

Article Chemistry, Physical

Doping strategy to promote the charge separation in BiVO4 photoanodes

Bo Zhang et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2017)

Article Chemistry, Physical

Photocatalytic improvement of Mn-adsorbed g-C3N4

Weibin Zhang et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2017)

Article Chemistry, Physical

Bridging the g-C3N4 Interlayers for Enhanced Photocatalysis

Ting Xiong et al.

ACS CATALYSIS (2016)