石墨烯-铁酸铜活化过一硫酸盐降解酸性红B  

Degradation of Acid Red B with peroxymonosulfate activated by CuFe2O4/graphene oxide

作　　者：李志立 赵丹[1] 董延茂 杨雨杰 汤晓蕾 宗泽 袁妍 蒋莉 Li Zhili;Zhao Dan;Dong Yanmao;Yang Yujie;Tang Xiaolei;Zong Ze;Yuan Yan;Jiang Li(School of Environmental Science and Engineering,Suzhou University of Science and Technology,Suzhou 215009,China;School of Chemistry,Biology and Materials Engineering,Suzhou University of Science and Technology,Suzhou 215009,China)

机构地区：[1]苏州科技大学环境科学与工程学院,江苏苏州215009 [2]苏州科技大学化学生物与材料工程学院,江苏苏州215009

出　　处：《工业水处理》2020年第10期90-94,共5页Industrial Water Treatment

摘　　要：采用溶胶-凝胶法制备了CuFe2O4-GO活化剂,并研究了其活化过一硫酸盐(PMS)降解酸性红B(ARB)的效果。结果表明,当CuFe2O4-GO投加量为0.1 g/L,n(PMS)∶n(ARB)=10∶1,pH=7.0时,反应10 min后ARB降解率可达96%;Cl-对ARB降解无显著影响。自由基猝灭实验表明,反应体系中非自由基(1O2)发挥了主要作用;紫外可见光谱分析结果表明,降解后ARB分子中的萘环和偶氮键结构均被破坏;TOC分析表明,反应体系对ARB染料具有一定的矿化率。CuFe2O4-GO在循环使用5次后仍有较好的活化效果。The CuFe2O4-GO was synthesized by sol-gel method.The Acid Red B(ARB)was degraded by the activa-tion of peroxymonosulfate with CuFe2O4-GO.The results showed that the ARB removal rate reached 96%after 10 min reaction with 0.1 g/L CuFe2O4-GO dosage,10∶1 of PMS and ARB molar ratio and pH 7.0.The concentration of Cl-had no significant effect on the degradation of ARB.Free radical identification experiments showed that non-radical path-way(1O2)played a primary role during the whole process.From UV-vis spectra results,the naphthalene ring and azo band of ARB were found to be destroyed.The TOC analysis indicated that the CuFe2O4-GO/PMS system could obtain a certain degree of ARB mineralization.After five rounds of test,the CuFe2O4-GO still had an excellent performance for the activation of PMS.

关 键 词：酸性红B 石墨烯-铁酸铜 过一硫酸盐 单线态氧 硫酸根自由基 

分 类 号：X703[环境科学与工程—环境工程]