期刊
RSC ADVANCES
卷 4, 期 12, 页码 5880-5886出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ra44046j
关键词
-
资金
- Science and Technology Planning Project of Shaanxi Province [2013K09-04]
- Scientific Research Project of the Provincial College Key Laboratory of Shaanxi Province [2010JS007]
Boron doped, nitrogen doped, and boron-nitrogen co-doped mesoporous TiO2 photocatalysts were successfully synthesized via a fast sol-gel method. The prepared photocatalysts were characterized by X-ray diffraction (XRD), thermalgravimetric analysis (TGA), UV-vis diffuse reflectance spectroscopy (DRS), transmission electron microscopy (TEM), N-2 adsorption-desorption, and X-ray photoelectron spectroscopy (XPS). It was found that the photocatalysts have a typical mesostructure and a large specific surface area. Compared with that of the undoped TiO2, the absorption band edges of the doped samples exhibit an evident red-shift and the absorption intensity of the visible region increases obviously. The XPS analysis shows that Ti-N-B-O structures formed on the surface of the boron-nitrogen codoped TiO2, indicating a synergistic effect of the two dopants that enhances the photocatalytic activity. This was evaluated by the degradation of methyl blue (MB), weak acid red (WAR), and rhodamine B (RB) dyes under visible and UV light irradiation.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据