摘要
ZnO nanocrystalline with different particle size was prepared by direct precipitation method, using ZnCl2·2H2O and anhydrous (NH4)2CO3 as raw materials. The effect of different calcining time on particle size was investigated. The samples were characterized by TG-DTG-DTA, X-ray diffractometry, TEM and Fluorescence Spectrometry methods. The results indicated that well crystallized nano - ZnO was obtained at 300 ℃ for 2 h with a size about 20 nm. Using ZnO nanocrystalline as photocatalyst, it was found that degradation of rhodamine B model pollutants is near 100% after 2h under sunlight.
ZnO nanocrystalline with different particle size was prepared by direct precipitation method, using ZnCl2·2H2O and anhydrous (NH4)2CO3 as raw materials. The effect of different calcining time on particle size was investigated. The samples were characterized by TG-DTG-DTA, X-ray diffractometry, TEM and Fluorescence Spectrometry methods. The results indicated that well crystallized nano - ZnO was obtained at 300 ℃ for 2 h with a size about 20 nm. Using ZnO nanocrystalline as photocatalyst, it was found that degradation of rhodamine B model pollutants is near 100% after 2h under sunlight.
出处
《分子催化》
EI
CAS
CSCD
北大核心
2007年第1期82-84,共3页
Journal of Molecular Catalysis(China)
基金
国家教育部科学技术研究重点项目(204027)
内蒙古高等学校科学研究项目(NJ02037).
关键词
纳米氧化锌
制备
表征
光催化
ZnO nanocrystalline
Preparation
Characterization
Photocatalysis
