Article
Chemistry, Multidisciplinary
Yingtao Sun, Ruixin Yi, Chun Hu, Lai Lyu
Summary: A novel Fenton-like catalyst CuZnS nano-aggregated particles were proposed to efficiently degrade active pharmaceutical ingredients under natural conditions, reducing energy consumption significantly. The catalyst also showed high efficiency in actual pharmaceutical wastewater purification.
ENVIRONMENTAL SCIENCE-NANO
(2022)
Article
Environmental Sciences
Chunying Teng, Kanggen Zhou, Lijia Liao, Xuekai Zhang, Kunqi Zhao, Jennefa Wendor Korvayan, Changhong Peng, Wei Chen
Summary: This study proposes a promising alternative method for wastewater treatment, using coordination-driven Cu-based Fenton-like process to effectively degrade organic pollutants. The results showed that under specific conditions, the removal efficiency of humic-acid using Cu-based Fenton-like process can reach 70%. The study also found that the addition of chloride ions can accelerate the reaction process, while bicarbonate ions and phosphate ions have the opposite effect. In addition, increasing the temperature is beneficial for the reaction to proceed.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Athitaya Changduang, Tawan Limpiyakorn, Patiparn Punyapalakul, Parinda Thayanukul
Summary: By utilizing low-cost natural materials, degradation mechanisms, surface phenomena, and the influence of co-existing organic matter on heterogeneous Fenton-like reactions for removing antibiotics were investigated. Modified zeolite showed the highest antibiotic removal efficiency, with the co-existing organic matter having a minor impact on the removal process.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Environmental Sciences
Shuxing Qiu, Lizheng Gou, Fangqin Cheng, Mei Zhang, Min Guo
Summary: Metal-doped MgFe2O4 spinel ferrite synthesized from saprolite laterite nickel ore was proven to be an efficient heterogeneous Fenton-like catalyst for degrading antibiotics, showing high degradation efficiency, cycling stability, and elucidation of the degradation mechanism of TC.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Environmental Sciences
Helcio Jose Izario Filho, Leandro G. Aguiar, Adriano Francisco Siqueira, Marco Aurelio Kondracki Alcantara, Patricia Caroline Molgero Da Ros, Robson Silva Rocha, Diovana Aparecida Santos Napoleao, Joaquim Joffre Brandao
Summary: This study successfully described the degradation kinetics of TOC in real pharmaceutical wastewater using a kinetic model based on mechanisms of free radical generation. The results indicated that UV radiation had a positive effect on degradation and the approach used in this study can be extended to the kinetic understanding of other complex wastewaters.
WATER AIR AND SOIL POLLUTION
(2021)
Article
Engineering, Environmental
Chuxuan Zhang, Jianhui Zeng, Zhipeng Ouyang, Xiaomin Li, Luqiu Lin, Yang Peng, Xun Gong
Summary: In this study, an efficient and economical catalyst was developed to improve the quality of bio-oil by co-liquefaction with microalgae residues. The catalyst showed outstanding performance in activating H2O2 for environmental remediation.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Engineering, Environmental
Jiahang Liu, Xiaoyang Li, Yingying Chu, Ling Yuan, Ruolin Lv, Weiming Zhang
Summary: The Fe(III)/H2O2 system showed high efficiency in remediation of tetracycline (TC) in water, even faster than the Fe(II)/H2O2 system. TC also initiated the degradation of other refractory pollutants. Complexation between Fe(III) and TC was observed with a stoichiometric ratio of 1:1 and electron transfer from TC to Fe(III) resulted in the production of Fe(II), which served as the initiator of the Fenton reaction. The main reactive species was found to be .center dot OH, facilitating the hydroxylation of TC and the reductive transformation of Fe(III) to Fe(II).
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Biochemistry & Molecular Biology
Christian Schoneich
Summary: Oxidation is a major route of chemical degradation in pharmaceutical formulations, but the mechanisms behind oxidation reactions, particularly the generation of free radicals, are not well understood. This article focuses on formulating these mechanisms based on information about impurities and stress factors from manufacturing, transportation, and storage. It specifically explores autoxidation, metal-catalyzed oxidation, photo-degradation, and radicals generated from cavitation due to mechanical stress, highlighting probable pathways rather than theoretical possibilities.
Article
Engineering, Environmental
Lei Jin, Yingping Huang, Honglin Liu, Liqun Ye, Xiang Liu, Di Huang
Summary: Compared to the radical oxidative pathway, the non-radical oxidative pathway has higher selectivity, adaptability, and lower oxidant requirement. This study demonstrates the selective generation of high-valent copper (CuIII) using Cu2O/Cu nanowires (CuNWs) activated by H2O2 for efficient treatment of glyphosate wastewater. The CuNWs/H2O2 system exhibited excellent potential for the efficient treatment of actual glyphosate wastewater, achieving a degradation efficiency of 96.6% and a reduction in chemical oxygen demand (COD) by 30%.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Chemistry, Physical
Xuanye Yan, Hang Li, Jiangtao Feng, Bo Hou, Wei Yan, Min Zhou
Summary: This study demonstrates that activated carbon assists in degrading ARG by the Fe3+/H2O2 Fenton-like system and has the ability to reduce Fe3+. Coconut shell-activated carbon was found to have the best promotion effect. Optimal reaction conditions were determined by adjusting factors such as particle size, concentration of activated carbon, H2O2 concentration, Fe3+ concentration, and pH value.
Article
Environmental Sciences
Yu Jiang, Jiabing Ran, Kang Mao, Xuefeng Yang, Li Zhong, Changying Yang, Xinbin Feng, Hua Zhang
Summary: The frequent use of antibiotics leads to their accumulation in the environment, posing a threat to environmental health. The Fenton reaction, as an effective treatment technology, shows promise for the removal of antibiotics in aqueous environments. This review summarizes recent progress on the use of Fenton and Fenton-like reactions for the removal of antibiotics, discusses their advantages and disadvantages, and explores the potential for their application in different scenarios.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2022)
Review
Biochemistry & Molecular Biology
Christian Schoneich
Summary: This article summarizes recent analytical and mechanistic work on the reactions of therapeutic proteins under light exposure, particularly in relation to protein modification under visible light. It suggests that these processes may be triggered by a ligand to metal charge transfer in excipient-metal complexes.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Inorganic & Nuclear
Dan Li, Zepeng Zhao, Junliang Guo, Rujun Shen, Feigao Xu
Summary: Magnetic nano Fe3O4/CeO2/TiO2 composites were synthesized and their Fenton catalytic activity for the degradation of AO-7 dye under UV light was studied. The best activity was observed in the composite with a weight ratio of 1:1:1 (Fe1Ce1Ti1). The Fe1Ce1Ti1 composite showed good reusability and the .OH free radicals were mainly formed on its surface.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Applied
Siyao Cheng, Cheng Zhang, Junjian Li, Xihao Pan, Xinrang Zhai, Yingzhi Jiao, Yan Li, Wei Dong, Xiaoliang Qi
Summary: Novel magnetic pullulan (MP) hydrogels were successfully prepared and used as Fenton-like catalysts for degrading antibiotics, exhibiting excellent degradation efficiency under optimized conditions. The study also comprehensively investigated the degradation mechanism and demonstrated impressive reusability and stability of the synthesized hydrogels.
CARBOHYDRATE POLYMERS
(2021)
Article
Chemistry, Physical
Yanqiu Zhang, Dong Yang, Shouchun Ma, Yang Yang, Yina Guan, Dongxu Wang, Yubo Zhao, Li Sheng, Tongjie Yao, Jie Wu
Summary: A Mott-Schottky heterojunction was synthesized to enhance the peroxymonosulfate (PMS) activation in Fenton-like reaction. The heterojunction consisted of Co nanoparticles encapsulated by nitrogen-doped graphitized carbon (N-GC) shell. The electrons were transferred from Co nanoparticles to the N-GC shell, improving the PMS activation through the Mott-Schottky effect.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)