信阳师范学院学报（自然科学版）Issue(2)：248-251,4.DOI:10.3969/j.issn.1003-0972.2015.02.022
Zn掺杂对 TiO2晶相及光催化性能的影响
Effect of TiO2 Doping by Zn on Crystalline Phase and Photocatalytic Activity
摘要
Abstract
ZnO-TiO2 composite catalyst was prepared by modified sol-gel method.The microcrystalline structure and light absorption performance of ZnO-TiO2 were identified by XRD and UV-Vis DRS, respectively.With methyl or-ange( MO) as the degradation product, the result showed that the photocatalytic activity of ZnO-TiO2 was affected by the conversion time from sol to gel controlled by changing the content of water and ethanol.when the ratio of n( Zn)∶n( Ti) was 3∶15 and calcination temperature was 500 ℃, the degradation of MO was up to 96.4%under UV irradia-tion for 5 h.The XRD results confirmed ZnO-TiO2 appeared mostly anatase TiO2 and cubic Zn2 TiO4 phases, and the cubic Zn2 TiO4 phase was observed only when n( Zn)∶n( Ti)≥3∶15.Compared with the pure TiO2 , the characteristic absorption threshold of ZnO-TiO2 appeared slight blue shift.关键词
ZnO-TiO2/Zn2 TiO4/溶胶-凝胶法/光催化Key words
ZnO/GO/Zn2 TiO4/sol-gel method/photocatalytic分类
化学化工引用本文复制引用
徐向军,邢晓轲,卫世乾..Zn掺杂对 TiO2晶相及光催化性能的影响[J].信阳师范学院学报（自然科学版）,2015,(2):248-251,4.基金项目
国家自然科学基金项目 （）
