Citation: HE Hong-Bo, ZHANG Meng-Fan, LIU Zhen, FAN Qi-Zhe, YANG Kai, YU Chang-Lin. Preparation by F Doping and Photocatalytic Activities of BiOCl Nanosheets with Highly Exposed (001) Facets[J]. Chinese Journal of Inorganic Chemistry, ;2020, 36(8): 1413-1420. doi: 10.11862/CJIC.2020.177 shu

Preparation by F Doping and Photocatalytic Activities of BiOCl Nanosheets with Highly Exposed (001) Facets

HE Hong-Bo ^1,2 ,
ZHANG Meng-Fan ^1,2 ,
LIU Zhen ¹ ,
FAN Qi-Zhe ¹ ,
YANG Kai ² ,
YU Chang-Lin ^1,2,

1.
School of Chemical Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, China
2.
School of Chemistry and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou, Jiangxi 341000, China

Received Date: 13 April 2020
Revised Date: 20 May 2020

Figures(9)

By using F doping, a series of BiOCl nanosheets with highly exposed (001) facets were synthesized by a solvothermal-calcination route. The fabricated bare BiOCl and F doped BiOCl nanosheets were characterized by some physicochemical methods, e.g. X-ray diffraction, N₂ physical absorption, scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, ultraviolet-visible diffuse reflectance spectroscopy, Fourier transform infrared spectroscopy, and photoelectrochemical measurement. The results show that F doping with moderate content can promote the growth of (110) crystal plane and suppress the crystal size, inducing the for-mation of highly exposed (001) facets. Moreover, an obvious increase in surface area and surface -OH groups were obtained after F-doping. Under simulated sunlight irradiation, F doping obtained significant enhancement in the degradation of rhodamine B, and about 1.67 times increase over F_1.0-BiOCl than that of bare BiOCl. Moreover, the degradation rate of F_1.0-BiOCl was 1.24 times that of commercial P25(TiO₂) in removal of acid orange Ⅱ. The main reasons for the increase of activity are that the exposed (001) facets induced by F-doping promoted dyes adsorption, and the separation of photo-generated electron-hole pair was also accelerated. Therefore, F-BiOCl nanosheets display superior photocatalytic performance for organic dyes degradation.
- BiOCl,
- F-doping,
- (001) facets,
- dye decomposition,
- photocatalysis
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