以五水硝酸铋、溴化钾和三聚氰胺为原料,采用溶剂热法制备了摩尔比不同的BiOBr/g-C3N4复合光催化剂,并进行了XRD、SEM和DRS表征分析.以50 W LED紫光灯为光源,采用罗丹明B为目标降解物考察了制备样品的光催化性能.结果表明:摩尔比为1∶1的BiOBr/g-C3N4复合光催化剂的具有最优的光催化性能.机理实验结果表明:超氧自由基(O2·-)和空穴(h+)为BiOBr/g-C3N4复合光催化剂光催化过程最为主要的活性物种.
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