612 results about "Alkyl trimethyl ammonium bromide" patented technology

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).