纳米WO_3·NiO·0.33H_2O光催化剂的结构与性能  

Structure and Property of nano crystalline WO_3·NiO·0.33H_2O photo-catalyst

作　　者：徐琼[1] 邹丽霞[1,2] 熊小青 

机构地区：[1]东华理工大学化学生物与材料学院,江西抚州344000 [2]北京化工大学化工过程资源有效利用国家重点实验室,北京100029

出　　处：《化工进展》2010年第2期260-263,268,共5页Chemical Industry and Engineering Progress

基　　金：化工过程资源有效利用国家重点实验室资助项目(2008-2009-3)

摘　　要：采用复合表面活性剂作分散剂,用微波辐射法制备了较大比表面积的纳米复合半导体材料WO3·NiO·0.33H2O,利用XRD、TEM、BET和UV-Vis漫反射光谱技术对固体材料的组成结构和光吸收性能进行了表征。结果表明,微波辐射法制备的材料晶粒小,孔隙率大,结晶度高,比表面积大,为66.37m2/g;材料WO3·NiO·0.33H2O光响应波长达600nm,增强了光能利用率及光催化活性。Composite semiconductor nano crystallites WO3·NiO·0.33H2O were synthesized by using composite surfactant as dispersant under microwave radiation. The structure and photo absorption property were characterized by using XRD,TEM,BET,XPS and UV-Vis D R S techniques. Results showed that the prepared nano crystallites have smaller crystallite size,larger hole,larger specific surface area of 66.37 m2/g and broad wavelength absorption up to 600 nm. Therefore,the prepared nano crystallites have improved light energy utilization efficiency and enhanced photocatalytic activity.

关 键 词：比表面积 微波辐射 光吸收性能 光催化 

分 类 号：TQ032[化学工程]