环境工程学报2026，Vol.20Issue(7)：2110-2119,10.DOI:10.12030/j.cjee.202512045
Sn-Sb共掺杂Ti/SnO2电极电催化降解苯酚的性能及机理
Performance and mechanism of electrocatalytic degradation of phenol by Sn-Sb co-doped Ti/SnO2 electrodes
摘要
Abstract
To optimize the structure of Ti/SnO2-based anodes in electrochemical advanced oxidation processes and enhance their electrocatalytic activity and stability,a Sn-Sb co-doped Ti/SnO2 electrode was constructed,and phenol was used as a model pollutant to evaluate its degradation performance and reaction mechanism.In this study,electrodes with different Sn and Sb doping levels were prepared by sol-gel method.Their structure and interfacial behavior were characterized by XRD,SEM,and electrochemical tests.Phenol was used as a model pollutant in constant current electrolysis experiments to evaluate degradation kinetics,mineralization efficiency,and energy consumption.The results indicated that the Sn-Sb co-doped electrode possessed a dense surface,high oxygen evolution potential,and a large electrochemical active area.Its removal rates and apparent rate constants for phenol and TOC were higher than those of singly doped electrodes,and its energy consumption per unit TOC mineralized was the lowest.The results of free radical quenching experiments and intermediate product analysis revealed that·OH was the dominant active species.Sn-Sb co-doping can significantly enhance the electrocatalytic activity and service life of Ti/SnO2-based electrodes,providing a reference for the optimization design of anode materials for electrochemical advanced oxidation processes.关键词
Sn-Sb协同掺杂/Ti/SnO2基电极/电化学高级氧化/苯酚/自由基机理/阳极材料优化设计Key words
Sn-Sb synergistic doping/Ti/SnO2-based electrode/electrochemical advanced oxidation/phenol/free radical mechanism/optimization design of anode materials分类
资源环境引用本文复制引用
谢昊昱,王天玉,李艳红,刘锐平..Sn-Sb共掺杂Ti/SnO2电极电催化降解苯酚的性能及机理[J].环境工程学报,2026,20(7):2110-2119,10.基金项目
国家自然科学基金资助项目(52570008) （52570008）
