Preparation of g-C3N4/TiO2 composites and the mechanism research of the photocatalysis degradation of ibuprofen

被引：0

作者：

Su, Hai-Ying ^{[1
]}

Wang, Ying-Fei ^{[1
]}

Wang, Feng-Liang ^{[1
]}

Su, Yue-Han ^{[1
]}

Cai, Zong-Wei ^{[1
]}

Liu, Guo-Guang ^{[1
]}

Lü, Wen-Ying ^{[1
]}

Yao, Kun ^{[1
]}

Li, Fu-Hua ^{[1
]}

Chen, Ping ^{[1
]}

机构：

[1] School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou,510006, China

来源：

Zhongguo Huanjing Kexue/China Environmental Science | 2017年 / 37卷 / 01期

关键词：

Transmission electron microscopy - Oxygen - Photocatalysis - Absorption spectroscopy - X ray diffraction;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

In this experiment, titanium trichloride was chosen as the titanium source of TiO2 and dicyandiamide was selected as the precursor of g-C3N4 to prepare the g-C3N4/TiO2 composites. The morphology, elements, and catalytic properties characterization of g-C3N4/TiO2 were characterized by transmission electron microscope (TEM), X-ray diffraction (XRD) and ultraviolet-visible absorption spectrum(UV-vis). The results showed that TiO2 could be attached on the surface of g-C3N4 well. The doping ratio 1:9 of C3N4 and TiO2 showed the highest photocatalytic activity on the degradation of IBU due to the red-shift of the catalyst. The photocatalytic degradation of IBU followed pseudo-first-order kinetics. Acidity increased the photocatalytic degradation of IBU. The quenching experiment demonstrated that the contribution rate of ·OH was 73.7%, indicating that ·OH played a major role in the photocatalytic degradation of IBU. © 2017, Editorial Board of China Environmental Science. All right reserved.

引用

页码：195 / 202