Influence of Heat Treated Temperature on the Photoactivating Property of Nanometer ZnO/SnO2 Powder
Nanometer ZnO/SnO2 powder was prepared by coprecipitating method with SnCl4·5H2O,ZnNO3·6H2O,HCl,NaOH as raw materials.Influence of heat treated temperature on the photoactivating property and structure and material phase of nanometer ZnO/SnO2 (ZnO/SnO2=4/(l) (mol ratio)) compound photocatalyst powder was studied by X-ray diffraction (XRD) and transmission electron microscope(TEM) and the degradation of methyl orange solution as a reaction model.The results show that the photoactivating activity of ZnO/SnO2 powder starts increasing and then decreasing when heat treated temperature increases.The photoactivating activity of ZnO/SnO2 powder is maximum,particle size is 20-30 nanometer and dispersion is good when heat treated temperature is 650℃.The photocatalytic activity of ZnO/SnO2 powder gradually reduces,dispersion is not good and there is Zn2SnO4 crystal phase when heat treated temperature is above 750 ℃.
nanometer ZnO/SnO2 powder photocatalytic coprecipitation methyl orange
Xinyou Huang Chunhua Gao Zhigang Chen
School of Materials Science and Engineering,Jiangsu University,Zhenjiang,Jiangsu,212013,China
国际会议
沈阳
英文
126-129
2012-09-07（万方平台首次上网日期，不代表论文的发表时间）