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.
出处
《化工进展》
EI
CAS
CSCD
北大核心
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)
关键词
比表面积
微波辐射
光吸收性能
光催化
specific surface microwave radiation light adsorption ability photocatalytic activity
