Preparation method of sheet-like bismuth oxychloride photocatalyst

Abstract

The invention provides a preparation method of a sheet-like bismuth oxychloride photocatalyst. According to the preparation method, the uniformity of bismuth oxychloride is well controlled, the diameter of obtained product sheets is about 800nm, the product sheets are very thin, and the preparation method is simple and feasible and is suitable for industrial production. The preparation method of the bismuth oxychloride specifically comprises the following steps of: (1) adding hexadecyl trimethyl ammonium bromide into distilled water, and stirring until the hexadecyl trimethyl ammonium bromide is dissolved; (2) under the condition of stirring, sequentially adding bismuth nitrate pentahydrate and sodium chloride; (3) stirring for 10 minutes, then pouring the mixture into a tetrafluoroethylene liner, and putting the liner into a 180 DEG C baking oven; and (4) cooling to the room temperature after 24 hours, centrifugally washing, and drying at 60 DEG C, wherein the weight ratio of the distilled water to the hexadecyl trimethyl ammonium bromide is (80-85):(1-5), and the molar ratio of the hexadecyl trimethyl ammonium bromide to the bismuth nitrate pentahydrate to the sodium chloride is (0.5-1.5):(10-20):(5-10).

Description

Technical field: [0001] The invention relates to a novel catalyst, in particular to a preparation method of a sheet-like bismuth oxychloride catalyst, which belongs to the technical field of catalysts. Background technique: [0002] Semiconductor photocatalysts can split water to obtain hydrogen energy under the irradiation of ultraviolet light or visible light, and can also be used in solar cells to convert solar energy into chemical energy, and can also degrade organic pollutants into small inorganic molecules H 2 O and CO 2 etc., showing great application potential. In order to obtain semiconductor photocatalysts with high photocatalytic activity and high stability, people have carried out a lot of research and development, and the most representative semiconductor photocatalyst is nano-titanium dioxide photocatalyst. In order to improve the quantum yield and solar energy utilization, researchers have modified titanium dioxide photocatalysts, such as doping with nobl...

AI Technical Summary

Problems solved by technology

[0004] The speed of bismuth oxychloride catalytic degradation of organic pollutants has a certain relationship with the crystal morphology. The traditional bismuth oxychloride degrades organic matter slowly. The activity needs to be further improved, so the research on the convenient synthesis method of bismuth oxychloride and the improvement of its catalytic activity have become the focus of research in the industry

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