Photocatalytic performance of SnO2 prepared by different precipitants
Parallel flow precipitation has been employed to prepare nanostructured SnO2.It is found that the specific surface areas and photocatalytic performance of SnO2 has a strong dependence on the kind of precipitant.The prepared photocatalysts were characterized by BET,XRD,UV-Vis diffuse reflectance and SEM.The results show that SnO2 prepared by NH3·H2O + (NH4)2CO3 has the highest BET surface area and the smallest crystal average size.SnO2 prepared by NH3·H2O + (NH4)2CO3 exhibits the best photocatalytic activity.The results of further experiments show that the specific surface area plays an important role in promotion of photocatalytic activity of SnO2 prepared by NH3·H2O + (NH4)2CO3.
semiconductors SnO2 powder technology photocatalytic performance
Sheng tian Huang Jun bo Zhong Jian zhang Li Wei Hu
Key Laboratory of Green Catalysis of Higher Education Institutes of Sichuan,Sichuan University of Science and Engineering,Zigong,643000,PR China
国际会议
武汉
英文
540-543
2013-06-15(万方平台首次上网日期,不代表论文的发表时间)