Efficient degradation of 2,4-dichlorophenol in water by sequential electrocatalytic reduction and oxidation with a Pd-MWCNTs/Ni-foam electrode
文献类型： 外文期刊
作者： Huang, Weibin 1 ; Liu, Andi 1 ; Tang, Bobin 2 ; Fu, Yuanhang 1 ; Zhang, Jinzhong 1 ;
作者机构： 1.Southwest Univ, Coll Resources & Environm, Chongqing Key Lab Agr Resources & Environm, Chongqing 400715, Peoples R China
2.Chongqing Engn Technol Res Ctr Import & Export Foo, Chongqing Customs, Tech Ctr, Chongqing 400020, Peoples R China
关键词： Pd-MWCNTs; Ni-foam electrode; 2; 4-Dichlorophenol; Sequential electrocatalytic reduction and oxidation; Mineralization; Electro-Fenton oxidation; Degradation mechanism
期刊名称：ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH （ 影响因子：5.8； 五年影响因子：5.4 ）
ISSN： 0944-1344
年卷期： 2023 年 30 卷 27 期
页码：
收录情况： SCI
摘要： Our previous study indicated excellent dechlorination efficiency and phenol conversion rate in the electrocatalytic reduction of 2,4-dichlorophenol (2,4-DCP) with a Pd-MWCNTs/Ni-foam electrode; it is deserved to investigate whether this electrode can efficiently degrade phenol in electro-Fenton oxidation (EFO) process and realize the effective mineralization of 2,4-DCP in aqueous solution. In this work, the sequential electrocatalytic reduction and oxidation of 2,4-DCP were studied after examining phenol degradation in the EFO process. The results showed that the removal efficiency of 0.31 mM phenol could reach 96.76% after 90-min degradation with the rate constant of 0.0367 min(-1), and hydroxy radicals (center dot OH) were the main active species in the EFO process. In the sequential electrocatalytic reduction and oxidation processes, the removal efficiencies of 2,4-DCP, phenol, and total organic carbon (TOC) reached 99.72%, 97.07%, and 61.45%, respectively. The possible degradation mechanism of 2,4-DCP was proposed through monitoring the reaction products, and the stability and reusability of the electrode were also examined. This study suggested that 2,4-DCP in wastewater can be effectively mineralized to realize its efficient degradation through the sequential electrocatalytic reduction and oxidation.
- 相关文献
作者其他论文 更多>>
-
Applying stacked machine learning models to guide electrochemical oxidation of antibiotics: Key parameter identification and process optimization insights
作者：Jia, Shichang;Deng, Min;Li, Jiahang;Zhang, Jinzhong;Mu, Yue;Tian, Xiaosong;Xie, Qing
关键词：Electrochemical advanced oxidation; Antibiotics; Machine learning; SHAP analysis; Model prediction
-
Efficient electrocatalytic oxidation of tetracycline in water using a SnO2-Sb/FTO electrode
作者：Xia, Kaixin;Zhou, Xue;Zhang, Jinzhong;Xia, Kaixin;Deng, Dongli;Liu, Shuliu;Qin, Tianhui;Tang, Bobin;Zou, Yun
关键词：Electrocatalytic oxidation; Tetracycline; SnO2-Sb/FTO electrode; Energy consumption; Degradation mechanism
-
Three-dimensional electro-Fenton oxidation of levofloxacin with a cerium doped-acidified red mud and biochar particle electrode
作者：Song, Mengwei;Guo, Chunhui;Xia, Kaixin;Zhang, Jinzhong;Guo, Chunhui;Xia, Ziqiao;Tang, Bobin
关键词：Acidified red mud; Cerium doping; Particle electrode; Three-dimensional electro-Fenton; Levofloxacin; Acidified red mud; Cerium doping; Particle electrode; Three-dimensional electro-Fenton; Levofloxacin
-
Source apportionment and predictable driving factors contribute to antibiotics profiles in Changshou Lake of the Three Gorges Reservoir area, China
作者：Mu, Yue;Cheng, Xian;Fu, Yuanhang;Huang, Weibin;Zhang, Jinzhong;Tang, Bobin;Wang, Jing;Ming, Dewang;Xing, Liangshu
关键词：Antibiotics; Source apportionment; Predictable factors; Machine learning; Changshou Lake
-
Promotion of polyhydroxyalkanoates-producing granular sludge formation by lactic acid using anaerobic dynamic feeding process
作者：Xi, Jiaxing;Zhang, Huihui;Zheng, Mingxia;Xi, Jiaxing;Zhang, Jinzhong;Fang, Wenjie;Xu, Heng
关键词：Granular sludge; Polyhydroxyalkanoates; Lactic acid; Biopolymers; Anaerobic dynamic feeding process
-
Effective Removal of Hexavalent Chromium from Aqueous Solutions Using Quaternary Ammonium-Functionalized Magnetic Graphene Oxide Composites
作者：Huang, Yue;Chen, Ying;Sun, Jianteng;Liang, Maofeng;Guo, Yonggui;Liu, Xiaping;Liu, Mingqiang;Wei, Yajing;Wei, Junfu;Zhang, Huan;Wang, Huicai;Huang, Yue;Sun, Jianteng;Zhang, Huan;Huang, Yue;Sun, Jianteng;Guo, Yonggui;Liu, Xiaping;Liu, Mingqiang;Wei, Junfu;Zhang, Huan;Wang, Huicai;Huang, Weibin;Chen, Ying;Liang, Maofeng;Guo, Yonggui;Liu, Xiaping;Liu, Mingqiang;Wei, Yajing;Wei, Junfu;Wang, Huicai
关键词：quaternary ammonium groups; surface modification; magnetic graphene oxide; adsorption; hexavalent chromium
-
Interactions and quantification of multiple influencing factors on cadmium accumulation in soil-rice systems at a large region
作者：Mu, Yue;Cui, Jingxin;Liu, Andi;Shi, Qiujun;Wei, Shiqiang;Zhang, Jinzhong;Wang, Shuai;Wang, Jing
关键词：Cadmium accumulation; Soil -rice systems; Influencing factors; Interactions; Quantification
