Electrochemical degradation of three phthalate esters in synthetic wastewater by using a Ce-doped Ti/PbO2 electrode
文献类型： 外文期刊
作者： Deng, Dongli 1 ; Wu, Xiaohua 1 ; Li, Mingyuan 1 ; Qian, Sheng 1 ; Tang, Bobin 3 ; Wei, Shiqiang 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 Ind Polytech Coll, Fac Chem & Pharmaceut Engn, Chongqing 401120, Peoples R China
3.Chongqing Engn Technol Res Ctr Import & Export Fo, Tech Ctr, Chongqing Customs, Chongqing 400020, Peoples R China
关键词： Phthalate esters; Ce-doped Ti/PbO2 electrode; Electrochemical degradation; Energy consumption; Degradation pathways
期刊名称：CHEMOSPHERE （ 影响因子：8.1； 五年影响因子：7.7 ）
ISSN： 0045-6535
年卷期： 2020 年 259 卷
页码：
收录情况： SCI
摘要： A Ce-doped Ti/PbO2 electrode was prepared in a deposition solution containing Ce3+ and Pb2+ ions by electrodeposition, and the surface morphology, crystal structure and elemental states were characterized by SEM, XRD and XPS. The electrode was used to investigate the simultaneous degradation of three phthalate esters (PAEs), i.e., dimethyl phthalate (DMP), diethyl phthalate (DEP) and dibutyl phthalate (DBP) in synthetic wastewaters. The results showed that the electrode exhibited excellent electrocatalytic activity and good reusability and stability, and the removal efficiencies of 5 mg L-1 DBP, DMP and DEP in 0.05 M Na2SO4 (pH 7) reached 98.2%, 95.8% and 81.1% at current density of 25 mA cm(-2) after 10 h degradation, respectively. The degradation processes followed pseudo first-order kinetic model very well, and the observed rate constants of DBP, DEP and DMP were 0.42, 0.40 and 0.29 h(-1), respectively. The energy consumption in three PAEs degradation was also assessed. The main degradation products of the three PAEs were identified by using liquid chromatography-tandem mass spectrometry, and the possible degradation pathways mainly included dealkylation, hydroxyl addition, decarboxylation and benzene ring cleavage. This work is a promising candidate for efficient treatment of multiple PAEs in wastewater and protection of the aquatic ecological environment. (C) 2020 Elsevier Ltd. All rights reserved.
- 相关文献
作者其他论文 更多>>
-
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
-
Simultaneous removal of arsenic and cadmium in aqueous solution by a novel hydrotalcite-like absorbent FeMnCa-LDHs
作者：Xiao, Wei;Deng, Ling;Yu, Jie;Wei, Shiqiang;Jiang, Zhenmao;Liao, Yumei;Zhang, Qingrui
关键词：Adsorbent; Layered double hydroxides; Arsenic; Cadmium; Wastewater treatment; Adsorption mechanism
-
Degradation of roxarsone and simultaneous immobilization of inorganic arsenic by L-cys modified FeMnNi-LDH activated persulfate system
作者：Yang, Lihao;Huang, Rong;Xiao, Wei;Wei, Shiqiang;Jiang, Zhenmao;Yang, Lihao;Huang, Rong;Xiao, Wei;Wei, Shiqiang;Jiang, Zhenmao;Yue, Yajie
关键词：Layered double hydroxides; Roxarsone; FEDs; Mechanism; L-cysteine
-
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
-
Efficient degradation of 2,4-dichlorophenol in water by sequential electrocatalytic reduction and oxidation with a Pd-MWCNTs/Ni-foam electrode
作者：Huang, Weibin;Liu, Andi;Fu, Yuanhang;Zhang, Jinzhong;Tang, Bobin
关键词：Pd-MWCNTs; Ni-foam electrode; 2; 4-Dichlorophenol; Sequential electrocatalytic reduction and oxidation; Mineralization; Electro-Fenton oxidation; Degradation mechanism
-
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
-
Electrochemical oxidation of carbamazepine in water using enhanced blue TiO2 nanotube arrays anode on porous titanium substrate
作者：Huang, Weibin;Fu, Yuanhang;Guo, Chunhui;Zhang, Jinzhong;Huang, Yue;Tang, Bobin
关键词：Electrochemical oxidation; Carbamazepine; BlueTiO(2) nanotube arrays anode; Porous titanium substrate; Degradation mechanism
