首页|Surface oxygen vacancies modified Bi2MoO6 double-layer spheres: Enhanced visible LED light photocatalytic activity for ciprofloxacin degradation
Surface oxygen vacancies modified Bi2MoO6 double-layer spheres: Enhanced visible LED light photocatalytic activity for ciprofloxacin degradation
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NSTL
Elsevier
Oxygen vacancies can regulate the energy band structure of semiconductor photocatalytic materials, and serve as electron traps and active sites to improve the photocatalytic activity of the photocatalyst. Herein, we prepared Bi2MoO6 flower spheres with a double-layer structure by a simple solvothermal method, and achieved the controllable introduction of oxygen vacancies through subsequent air calcination at different temperatures. The double-layer structure of Bi2MoO6 improved the light absorption because of multiple reflections. Compared with the pristine Bi2MoO6, the introduction of oxygen vacancies regulated the energy band structure of Bi2MoO6, improved the separation and transfer rate of electron-hole pairs, and produced more active species such as h+ and 1O2. Among all samples prepared, BMO-350 had the best activity, which could degrade 90.6% of ciprofloxacin (10 mg/L) within 80 min under the irradiation of 6000 K visible LED light. While under ultraviolet, 3000 K, 4500 K, 6000 K visible, red Led light and xenon lamp irradiation, the CIP degradation efficiency reached 94.9%, 73.77%, 85.9%, 89%, 16.24%, and 94.7%, respectively, demonstrated that the appreciable photocatalytic activity under the low energy light source.
Wang Y.、Jin G.、Zhao Y.、Sun J.、Fan M.、Dong S.、Liu X.、Tian G.
展开 >
School of Environment Henan Normal University Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control Ministry of Education Henan Key Laboratory for Environmental Pollution Control
Departments of Chemical and Petroleum Engineering University of Wyoming
NSTL
Elsevier
