4.7 Article

Efficient activation of ferrate by Ru(III): Insights into the major reactive species and the multiple roles of Ru(III)

相关参考文献

注意:仅列出部分参考文献,下载原文获取全部文献信息。
Article Chemistry, Physical

Switching the reaction mechanisms and pollutant degradation routes through active center size-dependent Fenton-like catalysis

Xinhao Wang et al.

Summary: Rationally regulating reaction mechanisms in Fenton-like reactions by tuning the properties of catalysts is challenging but significant. Various catalysts with different active center sizes were synthesized to realize the switching of reaction mechanisms and pollutant degradation routes in peroxymonosulfate (PMS) activation systems. The transformation of reaction mechanism from radical oxidation to nonradical oxidation was observed with the decrease of active center size. The toxicity tests indicated that the conversion from non-selective to selective oxidation resulted in lower toxicity of effluent after reaction, reducing environmental risks.

APPLIED CATALYSIS B-ENVIRONMENTAL (2023)

Article Engineering, Environmental

UVA-LED-Assisted Activation of the Ferrate(VI) Process for Enhanced Micropollutant Degradation: Important Role of Ferrate(IV) and Ferrate(V)

Tao Yang et al.

Summary: This study investigated the use of UVA-LED in combination with Fe(VI) for degrading micropollutants, showing significant enhancement compared to Fe(VI) alone. Factors such as wavelength, light intensity, and pH were found to influence the degradation performance.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2022)

Review Engineering, Environmental

Reactive High-Valent Iron Intermediates in Enhancing Treatment of Water by Ferrate

Virender K. Sharma et al.

Summary: Efforts are being made to enhance the reactivity of ferrate by generating highly reactive iron intermediates (Fe-V and Fe-IV) from the tetraoxy anion of iron in the +6 oxidation state. Various strategies, such as addition of acid, metal ions, and reductants, are utilized to produce Fe-V and Fe-IV species for more efficient treatment of polluted water. Kinetic modeling and DFT calculations provide opportunities to distinguish between Fe-IV and Fe-V in order to improve oxidation reactions using ferrate.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2022)

Article Engineering, Environmental

Nitrogen-doped carbon nanotubes enhanced Fenton chemistry: Role of near-free iron(III) for sustainable iron(III)/iron(II) cycles

Chenying Zhou et al.

Summary: Metal-free nitrogen-doped carbon nanotubes (NCNT) enhance Fenton reaction by elevating the oxidation potential of Fe(III), leading to the production of stable hydroxyl radicals (·OH) for multiple usages. This research provides a novel, sustainable, and green strategy for promoting Fenton chemistry.

WATER RESEARCH (2022)

Article Engineering, Environmental

Enhanced ferrate(VI)) oxidation of sulfamethoxazole in water by CaO2: The role of Fe(IV) and Fe(V)

Heng Zhang et al.

Summary: The study revealed that using CaO2 as a slow-releasing reagent of H2O2 can enhance the reactivity of Fe(VI) in removing SMX, showing better oxidation performance. The Fe(VI)-CaO2 system exhibited superior performance in degrading contaminants and applicability in authentic water.

JOURNAL OF HAZARDOUS MATERIALS (2022)

Article Engineering, Environmental

Activation of ferrate(VI) by sulfite for effectively degrading iodinated contrast media and synchronously controlling I-DBPs formation

Tao Yang et al.

Summary: In this study, the Fe(VI)/sulfite process was used to effectively remove ICM and control the formation of I-DBPs in the subsequent disinfection.

CHEMICAL ENGINEERING JOURNAL (2022)

Article Engineering, Environmental

Ferrate modified carbon felt as excellent heterogeneous electro-Fenton cathode for chloramphenicol degradation

Jingjing Zhang et al.

Summary: A novel and efficient heterogeneous electro-Fenton (EF) process was developed using a potassium ferrate modified carbon felt cathode for chloramphenicol removal. The Fe-CF cathode exhibited excellent performance over a wide range of pH and showed good recyclability and potential for real water treatment applications.

WATER RESEARCH (2022)

Article Engineering, Environmental

Graphite (GP) induced activation of ferrate(VI) for degradation of micropollutants: The crucial reduction role of carbonyl groups on GP surface

Mengfan Luo et al.

Summary: This study discovers that graphite (GP) can improve the reactivity of Fe(VI) in the pH range of 7.0-9.0. The performance of the GP/Fe(VI) process for sulfamethoxazole (SMX) removal was evaluated, and the activation mechanism of GP was analyzed.

JOURNAL OF HAZARDOUS MATERIALS (2022)

Article Engineering, Environmental

Enhanced ferrate oxidation of organic pollutants in the presence of Cu (II) Ion

Zhenyu Shi et al.

Summary: In this study, the introduction of Cu(II) in ferrate oxidation was found to greatly accelerate the abatement of various organic pollutants under slightly alkaline conditions. The presence of highly reactive and selective oxidants in the Cu(II)/Fe(VI) system contributed to the enhanced oxidation of organic pollutants. This study provides a simple, selective, and practical strategy for the abatement of organic pollutants and simultaneous removal of Cu(II).

JOURNAL OF HAZARDOUS MATERIALS (2022)

Article Engineering, Environmental

Enhanced removal of ammonia in Fe(VI)/Br- oxidation system: Kinetics, transformation mechanism and theoretical calculations

Yumeng Qi et al.

Summary: This study systematically examined the capability of ferrate (Fe(VI)) for ammonia oxidation and revealed the important role of bromide ions (Br-) in promoting the removal of ammonia in the Fe(VI) system. The underlying promotion mechanism of Br- was explained through various experiments, and it was found that the formation of active bromine (HOBr/OBr-) played a dominant role in enhancing the oxidative removal of ammonia by Fe(VI). Further simulations showed that HOBr/OBr- and Fe(VI) were the major reactive species, accounting for 66.7% and 33.0% of ammonia removal, respectively. The study also identified NO3- as the dominant transformation product of ammonia and revealed the reaction stages involved in ammonia oxidation. Overall, this work highlights the potential of in situ Fe(VI) oxidation method for effective removal of ammonia from natural waters or wastewaters.

WATER RESEARCH (2022)

Article Environmental Sciences

Oxidation of micropollutants by visible light active graphitic carbon nitride and ferrate(VI): Delineating the role of surface delocalized electrons

Bao Pan et al.

Summary: This study investigates the oxidation efficiency of three types of visible light-responsive graphitic carbon nitride photocatalysts on carbamazepine (a recalcitrant micropollutant) under alkaline conditions. The CN-U photocatalyst exhibits the highest degradation efficiency of carbamazepine due to its higher specific surface area and surface delocalized electrons. Physicochemical properties of the microstructures, such as crystallinity, morphology, and surface functional groups, do not directly associate with carbamazepine degradation. The results suggest that g-C3N4 surfaces with high levels of delocalized electrons can enhance the degradation of micropollutants.

CHEMOSPHERE (2022)

Review Environmental Sciences

A Review of the Distribution of Antibiotics in Water in Different Regions of China and Current Antibiotic Degradation Pathways

Can Liu et al.

Summary: Antibiotic pollution is becoming a serious threat in different regions of China due to contamination from wastewater of antibiotic manufacturers, large scale animal farming, and hospitals. Environmentally friendly alternatives to antibiotics are being developed to reduce their use, with biodegradation emerging as a key strategy for managing antibiotic pollution in the future. Further research is needed to develop more effective monitoring and mitigation of pollution in aquatic environments.

FRONTIERS IN ENVIRONMENTAL SCIENCE (2021)

Article Environmental Sciences

Highly selective oxidation of organic contaminants in the RuIII-activated peroxymonosulfate process: The dominance of RuV=O species

Yang Zong et al.

Summary: The Ru-III/PMS process was found to efficiently degrade certain organic contaminants through the generation of Ru-V=O active oxygen species, indicating a high selectivity of Ru-V=O towards specific pollutants.

CHEMOSPHERE (2021)

Article Environmental Sciences

Sustainable ferrate oxidation: Reaction chemistry, mechanisms and removal of pollutants in wastewater

Afzal Ahmed Dar et al.

Summary: This review evaluates the application of ferrate (Fe(VI)) as a green coagulant and reactive oxidant for removing micro pollutants, particularly pharmaceutical pollutants in contaminated water. The study summarizes the nature, reactivity, and chemistry of Fe(VI) oxidation, as well as different mechanisms and reactive agents involved in contaminant degradation. Various Fe(VI) application methods and activating agents are discussed, along with innovative aspects to improve stability and effectiveness in degrading micro pollutants in water.

ENVIRONMENTAL POLLUTION (2021)

Article Engineering, Environmental

Enhanced peroxymonosulfate activation via complexed Mn(II): A novel non-radical oxidation mechanism involving manganese intermediates

Yuan Gao et al.

Summary: The study showed that the combination of Mn(II) complexes with specific ligands and persulfates can efficiently trigger oxidation of contaminants, presenting a promising environmental decontamination technology.

WATER RESEARCH (2021)

Article Engineering, Environmental

Degradation of sulfamethoxazole by Co3O4-palygorskite composites activated peroxymonosulfate oxidation

Yaqun Yu et al.

Summary: A simple hydrothermal method was used to synthesize Co3O4-palygorskite composites, which showed excellent catalytic activity in degrading antibiotic sulfamethoxazole (SMX) using peroxymonosulfate (PMS). The composites exhibited higher activity under acidic conditions and the degradation was mainly caused by SO4·- and ·OH radicals.

CHEMICAL ENGINEERING JOURNAL (2021)

Article Engineering, Environmental

Enhanced Oxidation of Organic Contaminants by Iron(II)-Activated Periodate: The Significance of High-Valent Iron-Oxo Species

Yang Zong et al.

Summary: Potassium periodate (PI, KIO4) can be activated by Fe(II) under acidic conditions to rapidly remove organic contaminants, generating high-valent iron-oxo species Fe(IV) and avoiding the formation of harmful iodine species. Isotope labeling techniques and X-ray absorption spectroscopy provided insights into the reaction mechanism of Fe(II)/PI process, enhancing our understanding of the efficient removal of emerging contaminants.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2021)

Article Engineering, Environmental

Insights into the Electron-Transfer Mechanism of Permanganate Activation by Graphite for Enhanced Oxidation of Sulfamethoxazole

Jiali Peng et al.

Summary: Graphite can facilitate direct electron transfer from organics to KMnO4, leading to high KMnO4 utilization efficiency. The KMnO4/graphite system mainly extracts electrons from organic contaminants via a one-electron pathway, demonstrating superior reusability and significantly improved KMnO4 utilization efficiency.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2021)

Article Engineering, Environmental

Insights into the role of in-situ and ex-situ hydrogen peroxide for enhanced ferrate(VI) towards oxidation of organic contaminants

Mengfan Luo et al.

Summary: This study compared and discussed the promotion effect of hydrogen peroxide (H2O2) in Fe(VI) and Fe(VI)-H2O2 processes, revealing that the Fe(VI)-H2O2 system exhibited better oxidation performance due to the catalytic role of H2O2. Additionally, the system showed satisfactory pollutant removal effects in real water conditions.

WATER RESEARCH (2021)

Article Environmental Sciences

Ferrate(VI) Oxidation of Pharmaceuticals in Hydrolyzed Urine: Enhancement by Creatinine and the Role of Fe(IV)

Cong Luo et al.

Summary: This study found that creatinine can significantly enhance the degradation rate of pharmaceuticals by ferrate(VI), and developed a kinetic model involving Fe(IV) to successfully describe the removal of pharmaceuticals in the Fe(VI)-CRE-micropollutant system.

ACS ES&T WATER (2021)

Review Biotechnology & Applied Microbiology

Antibiotics: An overview on the environmental occurrence, toxicity, degradation, and removal methods

Qiulian Yang et al.

Summary: This paper provides an overview of the presence of antibiotics in the environment, their toxicity to non-target organisms, and current treatment technologies. Studies have shown that antibiotics are most frequently detected in wastewater, exhibiting toxicity to aquatic organisms. Fluoroquinolones, tetracyclines, and sulfonamides are the most common antibiotics in the environment and can be removed through biotic or abiotic processes.

BIOENGINEERED (2021)

Article Engineering, Environmental

Inactivation of Murine Norovirus and Fecal Coliforms by Ferrate(VI) in Secondary Effluent Wastewater

Kyriakos Manoli et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2020)

Article Engineering, Environmental

Influence of [sulfite]/[Fe(VI)] molar ratio on the active oxidants generation in Fe(VI)/sulfite process

Binbin Shao et al.

JOURNAL OF HAZARDOUS MATERIALS (2020)

Review Environmental Sciences

Interactions between silver nanoparticles and other metal nanoparticles under environmentally relevant conditions: A review

Virender K. Sharma et al.

SCIENCE OF THE TOTAL ENVIRONMENT (2019)

Article Environmental Sciences

Kinetics and mechanism of diclofenac removal using ferrate(VI): roles of Fe3+, Fe2+, and Mn2+

Junfeng Zhao et al.

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2018)

Article Engineering, Environmental

Accelerated Oxidation of Organic Contaminants by Ferrate(VI): The Overlooked Role of Reducing Additives

Mingbao Feng et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2018)

Article Engineering, Environmental

Impact of Phosphate on Ferrate Oxidation of Organic Compounds: An Underestimated Oxidant

Zhuang-Song Huang et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2018)

Article Environmental Sciences

Multi-wavelength spectrophotometric determination of Cr(VI) in water with ABTS

Wenjuan Fan et al.

CHEMOSPHERE (2017)

Article Engineering, Environmental

Bromide oxidation by ferrate(VI): The formation of active bromine and bromate

Yanjun Jiang et al.

WATER RESEARCH (2016)

Article Engineering, Environmental

Reaction of Ferrate(VI) with ABTS and Self-Decay of Ferrate(VI): Kinetics and Mechanisms

Yunho Lee et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2014)

Article Environmental Sciences

Ru(III) catalyzed permanganate oxidation of aniline at environmentally relevant pH

Jing Zhang et al.

JOURNAL OF ENVIRONMENTAL SCIENCES (2014)

Article Engineering, Environmental

Ruthenium Nanoparticles Supported on CeO2 for Catalytic Permanganate Oxidation of Butylparaben

Jing Zhang et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2013)

Article Engineering, Environmental

Oxidation of Phenolic Endocrine Disrupting Chemicals by Potassium Permanganate in Synthetic and Real Waters

Jin Jiang et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2012)

Article Chemistry, Organic

Participation of multioxidants in the pH dependence of the reactivity of ferrate(VI)

T Kamachi et al.

JOURNAL OF ORGANIC CHEMISTRY (2005)

Article Engineering, Environmental

Spectrophotometric determination of ferrate (Fe(Vl)) in water by ABTS

Y Lee et al.

WATER RESEARCH (2005)

Article Engineering, Environmental

Radical generation by the interaction of transition metals with common oxidants

GP Anipsitakis et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2004)