摘要
以双氯芬酸(DCF)为研究对象,亚氧化钛(Ti_(4)O_(7))电极为阳极,研究不同因素(初始浓度、pH值、电流密度、电解质浓度)对双氯芬酸电催化氧化降解的影响,通过淬灭实验探究降解过程中起主要作用的活性物质。结果表明,在双氯芬酸初始浓度为10 mg·L^(-1)、pH值为3、电流密度为15 mA·cm^(-2)、电解质浓度为0.05 mol·L^(-1)条件下,降解效果最佳;在亚氧化钛电极电催化氧化DCF过程中·OH和SO^(-)_(4)·起主要作用。Ti_(4)O_(7)电极可以实现水体中双氯芬酸的有效处理。
Effects of different influencing factors(initial concentration,pH value,current density,electrolyte concentration)on the electro catalytic oxidation and degradation of diclofenac(DCF)in water were studied using titanium oxide(Ti_(4)O_(7))as anode.The active substances that played a major role in the degr-adation process were explored by quenching experiment.The results showed that the optimal degradation was obtained when the initial concentration of diclofenac was 10 mg·L^(-1),pH was 3,current density was 15 mA·cm^(-2) and electrolyte concentration was 0.05mol·L^(-1).·OH and SO^(-)_(4)·play a major role in the electro catalytic oxidation of DCF by titanium oxide electrode.Ti_(4)O_(7) electrode can effectively treat diclofenac in water.
作者
李竹青
刘美增
耿聰
于畅
江锋
刘诗月
高维春
Li Zhuqing;Liu Meizeng;Geng Cong;Yu Chang;Jiang Feng;Liu Shiyue;Gao Weichun(School of Environmental and Chemical Engineering,Shenyang University of Technology,Shenyang 110870,Liaoning,China)
出处
《工业催化》
CAS
2022年第7期73-76,共4页
Industrial Catalysis
基金
辽宁省“兴辽英才计划”项目(XLYC1908034,XLYC2007170)
辽宁省教育厅科学研究经费项目(LQGD2020014)。
