球状Ag-Ag_3PO_4等离子体光催化剂的制备及其在降解罗丹明B中的应用

Preparation of Sphere-Like Ag-Ag_3PO_4 Visible-Light Plasmonic Photocatalysts and Application in Decomposition of Rhodamine B

采用直接沉淀和随后光照的方法获得了球状Ag-Ag3PO4亚微米结构等离子体光催化剂.产物经扫描电镜(SEM)、X-射线粉末衍射仪(XRD)、紫外可见分光光度计等方式进行表征,并研究了该球状Ag-Ag3PO4亚微米结构在罗丹明B降解中的催化效果.动力学和循环催化结果表明,球状Ag-Ag3PO4亚微米结构比球状Ag3PO4亚微米结构具有更好催化活性和稳定性,该催化剂在环境治理中的具有潜在的应用价值.

The plasmonic photocatalyst of Ag-Ag3PO4 sub-microstructures were obtained by a direct precipitation and subsequently visible-light-induced process.The products were characterized by dectron microscopy,X-ray powder diffraction,and UV-vis diffusive reflectance spectrums,respectively.The photocatalytic activity of sphere-like Ag-Ag3PO4 sub-microstructures for rhodamine B was investigated.The kinetic data and cycling degradation experiments indicate that the sphere-like Ag-Ag3PO4 sub-microstmctures was catalytically more active than sphere-like Ag3PO4 sub-microstructures.Herein,the sphere-like Ag-Ag3PO4 sub-microstructures show potential application in the feild of environmental remediation.