摘要
采用熔盐法合成纯的单斜晶系的Bi2WO6,利用XRD、SEM、DRS等对其进行表征,通过光催化降解甲基橙(MO)对其可见光催化性能进行表征,并与传统固相反应法制得的粉末样品做对比。结果表明:熔盐的使用可以使原来固相反应法的所需温度(900℃)降低到350℃。稳定性实验表明样品具有较好的循环使用稳定性。
Pure Bi2WO6 was prepared by a molten salt method, in which molten salt supplies a liquid surrounding for rapid ion reaction at lower temperature. The as-prepared samples were characterized by X-ray Diffraction (XRD), Field Emitted Scanning Electron Microscopy (FESEM), UV-Vis diffuse reflectance spectroscopy (UV-vis DRS). The photocatalytic activity of the products was evaluated by the photocatalytic decomposition of methyl orange (MO) under visible light. The results show that the reaction temperature can significantly be reduced from 900 oC to 350 oC and the response time can be shortened. In addition, Bi2WO6 also shows good stability in the experiment.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2010年第S2期405-408,共4页
Rare Metal Materials and Engineering
基金
浙江省自然科学基金(Z4080021)
国家自然科学基金(50532030
50625206)
长江学者和创新团队发展计划资助
关键词
Bi2WO6
熔盐法
光催化
可见光
Bi2WO6
moltent salt method
photocatalysis
visible light
