磷酸银的醇辅助水热法制备及其光催化性能  

Synthesis of Ag_3PO_4 by hydrothermal route using alcohol and study on its photocatalytic properties

作　　者：李嫚[1] 徐红波[1] 赵越[1] 

机构地区：[1]辽宁科技大学化学工程学院,辽宁鞍山114051

出　　处：《辽宁科技大学学报》2016年第2期119-125,共7页Journal of University of Science and Technology Liaoning

基　　金：辽宁省教育厅科学研究基金项目(L2015262);鞍山市科技计划项目基金资助(201308)

摘　　要：采用醇辅助水热法,在固定醇与水体积比的情况下,加入乙醇、乙二醇、丙三醇成功制备了多形貌Ag_3PO_4光催化剂。使用扫描电子显微镜、X射线衍射仪、紫外-可见漫反射光谱等检测手段对样品的晶体形貌、晶相结构和光学性能进行表征。研究发现,反应体系中加入醇后,晶体的形貌、分散性及光电学性质发生改变,进而影响其光催化性质;可见光下降解Rh B实验显示,加入乙醇后制备的多面体Ag_3PO_4光催化降解能力最强。By fixing the volume ratio of alcohol and water,Ag_3PO_4 photocatalysts were synthesized by hydrothermal route using ethanol,ethylene glycol,propanetriol respectively. The crystal morphologies,crystal structures and optical properties of Ag_3PO_4 polymorphs were characterized by scanning electron microscopy（SEM）,X-ray diffraction（XRD）,and ultraviolet-visible diffuse reflectance spectroscopy（UV-Vis DRS）. The studies proved that the morphology,dispersion and optical properties of crystals were changed and the photocatalytic properties were affected by the additions of alcohol. The experiment showed that polyhedral Ag_3PO_4 prepared by ethanol exhibited the highest photocatalytic activity in the photocatalytic degradation of Rh B.

关 键 词：Ag3PO4 水热法 醇 光催化 

分 类 号：TQ135[化学工程—无机化工]