废墨粉碳化阴极电芬顿降解水中磺胺嘧啶研究  

Sulfadiazine removal in wastewater by electro-Fenton using waste toner carbonized cathode

作　　者：张棋霞 朱英实 罗涛 ZHANG Qixia;ZHU Yingshi;LUO Tao(Deqing County Ecological and Environmental Monitoring Station,Huzhou 313000,China;Zhejiang Environment Technology Co.,Ltd.,Hangzhou 310000,China;College of Chemical and Biological Engineering,Zhejiang University,Hangzhou 310000,China)

机构地区：[1]浙江省湖州市德清县生态环境监测站,湖州313000 [2]浙江省环境科技有限公司,杭州310000 [3]浙江大学化学工程与生物工程学院,杭州310000

出　　处：《给水排水》2023年第4期71-76,共6页Water & Wastewater Engineering

基　　金：浙江省环境科技有限公司自筹科研项目(RD022022015)。

摘　　要：为降低电芬顿体系中H_(2)O_(2)的无效降解,以废墨粉为原料制备了含铁电芬顿阴极,同时探究了Pt和掺硼金刚石(BDD)电极作为阳极时电芬顿体系对磺胺嘧啶(SDZ)的去除效率。结果表明,制备的催化剂含有Fe_(3)O_(4),修饰的阴极可以促进氧的两电子转移有利于阴极原位生成H_(2)O_(2)。以BDD为阳极时,通电60min后对SDZ的去除率达到90%以上,降解速率是Pt作为阳极时的2.55倍。此外,修饰阴极具有良好的稳定性。为处理含抗生素废水提供了电化学氧化协同阴极电芬顿反应的研究基础。To reduce the ineffective degradation of H_(2)O_(2)in the electro-Fenton system,this study prepared an iron-containing electro-Fenton cathode from waste toner and investigated the removal efficiency of the electro-Fenton system for sulfadiazine(SDZ)using Pt and boron-doped diamond(BDD)electrodes as anodes.The results showed that the prepared catalysts contain Fe_(3)O_(4).Also,the modified cathode promoted the 2-electron transfer of oxygen,favoring the in-situ generation of H_(2)O_(2)from the cathode.When the BDD was used as the anode,the removal rate of SDZ reached more than 90%after 60 mins of reaction,which is 2.55 times the degradation rate than when Pt was used as the anode.In addition,the modified cathode has good stability.This study provides the basis for the study of electrochemical oxidation synergistic cathodic electro-Fenton reaction for the treatment of wastewater containing antibiotics.

关 键 词：电化学氧化 废墨粉 碳化 电芬顿 磺胺嘧啶 

分 类 号：X703[环境科学与工程—环境工程]