Citation: WANG Lu, LI Xi, TANG Zi-Cong, ZHOU Nan, YU Zheng-Song, DONG Yong-Zhi, LI Xiao-Zheng, WEI Deng-Gui, DONG Yu-Lin, LI Quan-Hua, LIU Peng. Preparation and Photocatalytic Performance of Bi₅O₇I/PANI Composites[J]. Chinese Journal of Inorganic Chemistry, ;2019, 35(2): 271-276. doi: 10.11862/CJIC.2019.047 shu

Preparation and Photocatalytic Performance of Bi₅O₇I/PANI Composites

Department of Chemistry, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, China

Corresponding author: LI Xi, chemlixi@whut.edu.cn
Received Date: 5 October 2018
Revised Date: 3 December 2018

Figures(7)

Polyaniline (PANI) was prepared by chemical oxidative polymerization and Bi₅O₇I/PANI composites were prepared by the hydrothermal method. The prepared samples were characterized by X-ray diffraction, Fourier-transform infrared spectroscopy, field emission scanning electron microscopy, UV-Vis diffuse reflectance spectroscopy and photoluminescence spectroscopy. The photocatalytic performance of Bi₅O₇I/PANI composites were evaluated by the degradation of RhB under the visible light irradiation. The experiment results showed that all the composites exhibited the higher degradation efficiency than Bi₅O₇I. When the loading of PANI was 5%(w/w), the catalytic efficiency was the best. The reaction rate constant was about 3.9 times higher than that of Bi₅O₇I within 60 min. The results of trapping experiments indicated that superoxide radical and holes are the main active species in the photodegradation process. The loading of PANI could expand the visible light range and enhance the light absorption. Moreover, the suitable energy structure could inhibit the recombination efficiency of photo-generated electron-hole.
- photocatalysis,
- Bi₅O₇I,
- PANI,
- composites,
- ultraviolet-visible spectra
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Preparation and Photocatalytic Performance of Bi₅O₇I/PANI Composites