摘要
采用共沉淀方法合成CoZnAl水滑石,进行了XRD和UV-vis表征,并测试了CoZnAl水滑石修饰电极的光电催化性能。考察了溶液pH、电解质溶液种类、电解质浓度等对光电催化过程的影响。结果表明,水滑石修饰薄膜电极的甲基橙降解效果最明显,降低溶液pH、采用高浓度NaNO_3作电解质,在偏酸性条件下甲基橙降解效果较好,4 h甲基橙脱色率可达83%。
CoZnAl was synthesized by co-precipitation method, and synthesized sample was characterized by XRD and UV-vis. The photoelectrocatalytic performance of CoZnA1 LDHs modified film electrode was tested. The effect of pH, electrolyte type and concentration on photoelectroeatalytic performance was investigated. The results indicate that the methyl orange decolorization over the CoZnAl LDHs modified electrode is very obvious. Under lower pH of the solution and high concentration NaNO3 as electrolyte, the deeolorization effect of methyl orange is better, the methyl orange decolorization rate can reach 83% in 4h.
出处
《辽宁化工》
CAS
2016年第12期1474-1478,共5页
Liaoning Chemical Industry
基金
辽宁省教育厅科技基金
2014169
关键词
水滑石
光电催化
甲基橙
hydrotalcite
photoelectrocatalysis
methyl orange
