Preparation of Ti-based Yb-doped SnO_(2)-RuO_(2) electrode and electrochemical oxidation treatment of coking wastewater

作     者：Weida Wang Ke Wang Wenting Hao Tingting Zhang Yijie Liu Linghong Yu Weiping Li Weida Wang;Ke Wang;Wenting Hao;Tingting Zhang;Yijie Liu;Linghong Yu;Weiping Li

作者机构：School of Energy and EnvironmentInner Mongolia University of Science and TechnologyBaotou 014010China School of Environmental and Municipal EngineeringXi’an University of Architecture and TechnologyXi'an 710055China MCC Northwest Engineering Technology Co.Ltd.Baotou 014010China 

出 版 物：《Journal of Rare Earths》 (稀土学报（英文版）)

年 卷 期：2022年第40卷第5期

页      面：763-771,I0003页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 

基　　金：Project supported by Natural Science Foundation of Inner Mongolia(2018LH04003,2020MS05047) Inner Mongolia Autonomous Region Science Technology Plan Project(201702100) Inner Mongolia Autonomous Region Results Transfer Project(2019CG075) 

主　　题：Yb Ti/SnO_(2)-RuO_(2) Electrochemical oxidation Coking wastewater 

摘      要：In this study,the Ti/SnO_(2)-RuO_(2) electrodes with different Yb contents were prepared by sol-gel method and thermal decomposition method,and the surface morphology and crystal structure of the electrodes were characterized by scanning electron microscopy(SEM),atomic force microscopy(AFM) and X-ray diffraction(XRD),the electrochemical properties of the electrodes were tested by linear sweep voltammetry(LSV) and cyclic voltammetry(CV).The electrochemical oxidation device was constructed with Yb-doped Ti/SnO_(2)-RuO_(2) electrode as the anode and titanium plate as the cathode,and the electrochemical oxidation effect and product changes of the anode on co king wastewater were *** results show that the surface of the electrode is flat with high crystallinity of SnO_(2) and RuO_(2) crystals at1.5% Yb doping,and the LSV and CV curves indicate that the Yb doping of 1.5% increases the oxygen precipitation potential and electrocatalytic oxidation activity of the *** the electrode with Yb doping of 1.5% is the anode with current density of 10 mA/cm^(2) electrochemical oxidation time of 30 min,the electrode can remove chemical oxygen demand(COD) up to 85.06%,total organic carbon(TOC) up to 60.59% and UV_(254) from 1.594 to 0.507 for coking *** chromatography(GC-MS),UV-vis and three-dimensional fluorescence results of coking wastewater before and after treatment show that large toxic substances in coking wastewater are degraded to low toxic organic substances,and most soluble organic substances are degraded and *** study provides the possibility of basic research for the engineering practice of electrochemical oxidation for the treatment of coking wastewater.