Article
Engineering, Environmental
Jong-Gook Kim, Hye-Bin Kim, Won-Gune Jeong, Kitae Baek
Summary: A novel oxidation system combining calcium peroxide and pyrite was proposed for the degradation of oxidizable contaminants in groundwater. This system showed higher efficiency in degrading sulfanilamide compared to conventional Fenton reaction, indicating its effectiveness in groundwater remediation.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Biochemistry & Molecular Biology
Hexi Yang, Fumin Tai, Tiantian Wang, Xiaofei Zheng, Changhui Ge, Yide Qin, Hanjiang Fu
Summary: In this study, it was found that hydroxyl radical (center dot OH) generated from the intracellular Fenton reaction can induce significant cell death. The Fenton reaction between Fe2+ with H2O2 resulted in a shift in lipid peroxidation and cell cycle arrest. The center dot OH generated from the Fenton reaction triggered severe apoptosis but did not lead to DNA double-strand breakage.
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
(2023)
Article
Biochemistry & Molecular Biology
Zhongwei Zhao
Summary: This Mini-review summarizes the latest evidence of hydroxyl radical generation from physiologically relevant Fenton-like reactions of iron(II) complexes with physiological ligands in human blood plasma. The findings strongly challenge the previous proposal.
FREE RADICAL BIOLOGY AND MEDICINE
(2023)
Review
Environmental Sciences
Enric Brillas
Summary: Antibiotics are widely used to fight and heal bacterial diseases in animals and humans worldwide. However, they have been detected at low concentrations in natural waters, posing potential health risks and causing alterations in food chains and increased resistance to bacterial infection. Conventional wastewater treatment plants struggle to effectively remove antibiotics due to their high stability. The electro-Fenton (EF) process, as an advanced oxidation process, shows promise for the destruction of antibiotics. This review provides a comprehensive analysis of the application of EF in treating synthetic and real wastewaters contaminated with common antibiotics from 2017 to 2021.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Review
Chemistry, Physical
Negin Farhadian, Shiquan Liu, Anvar Asadi, Mohsen Shahlaei, Sajad Moradi
Summary: Fenton reactions, classified as homogeneous and heterogeneous, are efficient processes used in water remediation. Heterogeneous Fenton processes, using solid catalysts containing iron instead of dissolved iron, have shown higher catalytic activity compared to unsupported iron oxides. Iron-containing silica composites have been widely used for the removal of organic pollutants from aqueous solutions.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Engineering, Environmental
Hui Xia, Jungang Guo, Yuesuo Yang, Yuanyuan Wang, Zhongchang Wang, Xin Wang, Wenjing Zhang
Summary: This study developed a novel modified Fenton system using calcium peroxide and iron ions, and applied it to the removal of p-nitrophenol in groundwater. The results showed that the system could effectively remove p-nitrophenol under optimal conditions. The presence of hydroxyl radicals and singlet oxygen was confirmed, and possible degradation pathways were proposed. These findings provide important technical support for groundwater remediation.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Environmental Sciences
Aref Shokri, Bahram Nasernejad, Mahdi Sanavi Fard
Summary: The efficiency of heterogeneous electro-Fenton technology in degrading recalcitrant organic pollutants in wastewater is highly evident. This green technology has gained significant attention from wastewater treatment research communities due to its outstanding performance, eco-friendliness, and wide operability. The article discusses the mechanism of the electro-Fenton process, the properties of efficient catalysts, and the challenges hindering its commercialization. It proposes future research directions and concludes that addressing those gaps will make the commercialization of electro-Fenton technology a realistic goal.
WATER AIR AND SOIL POLLUTION
(2023)
Article
Environmental Sciences
Feng Cheng, Peng Zhou, Yang Liu, Xiaowei Huo, Jian Zhang, Yue Yuan, Heng Zhang, Bo Lai, Yongli Zhang
Summary: The study investigates the enhancement of graphene oxide (GO) on Fe(III)-mediated Fenton and photo-Fenton oxidation, confirming hydroxyl radicals (OH) as the major oxidant for chloramphenicol degradation. The formation of GO-Fe(III) complexes, the electron transfer from GO to Fe(III), and the promotion of H2O2-induced Fe(III) reduction by GO are discussed. The GO/Fe(III)/H2O2 system shows great potential for environmental remediation, with or without visible light irradiation.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Jaimy Scaria, P. V. Nidheesh
Summary: This study compares the pre-oxidation of pharmaceutical wastewater using hydroxyl radical and sulfate radical based advanced oxidation processes. The heterogeneous Fenton process shows the highest efficiency in TOC removal, while persulfate activation requires an additional treatment step to reduce COD and inorganics.
ENVIRONMENTAL RESEARCH
(2023)
Article
Engineering, Environmental
Kira Bresler, Dror Shamir, Zorik Shamish, Dan Meyerstein, Ariela Burg
Summary: This study investigates the catalytic oxidation of ethanol and dimethyl sulfoxide (DMSO) by LaFeO3 in Fenton-like reactions. The results demonstrate the formation of two short-lived oxidizing intermediates, which are identified as [((LaFeIIIO3)n)n((LaFeIIIO2(OH)m-2)(LaFeIV(O)O2)2] and [(LaFeIVO3)2(LaFeIIIO3)n-2]2+ based on product analysis. Notably, DMSO is oxidized much faster by [((LaFeIIIO3)n)n((LaFeIIIO2(OH)m-2)(LaFeIV(O)O2)2] than ethanol, while [(LaFeIVO3)2(LaFeIIIO3)n-2]2+ only oxidizes ethanol. The findings contribute to a better understanding of the mechanisms of perovskite catalyzed Fenton-like reactions and can facilitate the development of efficient AOPs.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Biochemistry & Molecular Biology
Yandong Ran, Mohammed Moursy, Robert C. Hider, Agostino Cilibrizzi
Summary: Investigation was made on an aromatic substrate for hydroxylation by hydroxyl radicals ((OH)-O-center dot). The probe, N,N'-(5-nitro-1,3-phenylene)-bis-glutaramide, and its hydroxylated product were found not to bind either iron(III) or iron(II), thus not interfering with the Fenton reaction. A spectrophotometric assay based on the hydroxylation of the substrate was developed, providing univocal and sensitive (OH)-O-center dot detection. The assay demonstrated the lack of Fenton activity of iron(III) complexes of long-chain fatty acids under biological conditions.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Physical
Zhipeng Luo, Mingtao Liu, Diyong Tang, Yao Xu, Honghua Ran, Jing He, Ke Chen, Jie Sun
Summary: In this study, a facile self-sacrificial template route was used to synthesize heteroatom-doped porous biochar, which exhibited enhanced electrocatalytic activity for H2O2 production and Fe2+ regeneration. The biochar cathode achieved high H2O2 selectivity, efficient H2O2 activation rate, and effective degradation of various organic contaminants within a short time. The electro-Fenton system showed good stability and versatile applicability for organic pollutants remediation in different surface water matrices.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Review
Engineering, Chemical
Mengying Liu, Yun Xu, Yanjun Zhao, Zheng Wang, Dunyun Shi
Summary: Utilizing H2O2 as a reaction substrate to generate hydroxyl radical offers a promising therapeutic strategy for cancer treatment, yet the limited Fenton catalysts and insufficient endogenous H2O2 content in tumor sites hinder the production of hydroxyl radicals. Providing Fenton catalysts and increasing H2O2 levels within cancer cells are effective strategies to improve the generation of hydroxyl radicals and enhance therapeutic efficacy in cancer treatment.
FRONTIERS OF CHEMICAL SCIENCE AND ENGINEERING
(2022)
Review
Chemistry, Multidisciplinary
Qiwei Tian, Fengfeng Xue, Yurui Wang, Yuying Cheng, Lu An, Shiping Yang, Xiaoyuan Chen, Gang Huang
Summary: Chemodynamic therapy (CDT) is a novel therapeutic modality that aims to destroy cancer cells using Fenton reactions without external energy input. Various strategies have been explored to enhance the efficiency of CDT, including increasing the production, accelerating generation, and enhancing efficacy of hydroxyl radicals.
Article
Engineering, Environmental
Yuting Yang, Jin Chen, Zhi Chen, Zhen Yu, Jingchuan Xue, Tiangang Luan, Shanshan Chen, Shungui Zhou
Summary: The microbial-driven Fenton reaction can enhance the degradation of polystyrene microplastics (PS-MPs) through the production of hydroxyl radicals, but it also causes damage to microorganisms. This study demonstrates that PS-MPs can be continuously degraded by microbial-driven Fenton reactions in natural alternating anaerobic-aerobic environments, even with the oxidative damage on microorganisms.
