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通过离子交换法制备了Ag3PO4/WO3复合光催化剂.用X射线衍射、扫描电子显微镜和紫外可见漫反射光谱对所制备的样品进行了表征.通过在可见光(λ >420 nm)下降解水中的甲基橙来检测样品的光催化活性.结果表明,Ag3PO4/WO3的光催化活性和稳定性均高于纯相Ag3PO4,其原因是,Ag3PO4导带上的光生电子易于向WO3转移,提高了光生载流子的分离效率,也使得光生电子不再将Ag3PO4中的Ag+还原为Ag.

参考文献

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