银负载纳米氧化锌光催化降解水中培氟沙星
Guangzhou Chemical Industry(2017)
Abstract
采用共沉淀法和光还原法制备银负载纳米氧化锌光催化剂(Ag/ZnO),运用X射线衍射和UV-Vis方法对Ag/ZnO催化剂进行分析、表征,结果显示:负载Ag的ZnO催化剂除了有纤锌矿相ZnO的衍射峰外,还出现单质Ag的衍射峰;Ag负载可增强ZnO在可见区域的吸收.实验结果表明:当银负载量为0.5mol%时,培氟沙星溶液浓度为15 mg/L,银负载纳米氧化锌催化剂用量为0.4 g/L时,光催化性能最好,紫外灯照射下反应5 h,降解率高达78.4%.
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