Method for preparing BiOCl with adjustable thickness at room temperature
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Embodiment 1
[0030] 1) Preparation of BiOCl monomer
[0031] First, 0.97 g of Bi(NO 3 ) 3 ·5H 2 O was added to 60 mL of aqueous solution and stirred for another 20 minutes. Then 10 mL of 1 mol / L hydrochloric acid solution was added. After stirring for 30 minutes, the precipitate was collected, washed repeatedly with ultrapure water and ethanol, and dried at 60°C to obtain BiOCl nanosheets, which were used for subsequent blank experiments.
[0032] 2) Preparation of BiCOl photocatalyst with adjustable thickness
[0033] Disperse 0.5, 1, 1.5, 2g (molar ratio 1:50-300) of mannitol respectively in 60mL of ultrapure water, stir well to dissolve, then add 0.97g of Bi(NO 3 ) 3 ·5H 2 O was added therein respectively, and after stirring for 20 minutes, 10 mL of 1 mol / L hydrochloric acid solution was added respectively. After stirring for 30 minutes, the obtained precipitate was centrifuged, washed repeatedly with ultrapure water and ethanol, and dried at 80°C to obtain BiOCl- 0.5, BiOCl-1, ...
Embodiment 2
[0038] 1) Preparation of BiOCl monomer
[0039] First, 0.97 g of Bi(NO 3 ) 3 ·5H 2 O was added to 60 mL of aqueous solution and stirred for another 20 minutes. Then 10 mL of 1 mol / L sodium chloride solution will be added. After stirring for 30 minutes, the precipitate was collected, washed repeatedly with ultrapure water and ethanol, and dried at 60°C to obtain BiOCl nanosheets, which were used for subsequent blank experiments.
[0040] 2) Preparation of BiCOl photocatalyst with adjustable thickness
[0041] Disperse 0.5, 1, 1.5, and 2 g of mannitol in 60 mL of ultrapure water, and stir to dissolve them, then add 0.97 g of Bi(NO 3 ) 3 ·5H 2 O was added therein respectively, after stirring for 20 minutes, 10 mL of 1 mol / L sodium chloride solution was added respectively, after stirring for 30 minutes, the precipitate obtained was centrifuged, washed repeatedly with ultrapure water and ethanol, and dried at 80°C to obtain BiOCl-0.5, BiOCl-1, BiOCl-1.5, BiOCl-2 nanosheets....
Embodiment 3
[0043] 1) Preparation of BiOCl monomer
[0044] First, 0.97 g of Bi(NO 3 ) 3 ·5H 2 O was added to 60 mL of aqueous solution and stirred for another 20 minutes. Then 10 mL of 1 mol / L potassium chloride solution will be added. After stirring for 30 minutes, the precipitate was collected, washed repeatedly with ultrapure water and ethanol, and dried at 60°C to obtain BiOCl nanosheets, which were used for subsequent blank experiments.
[0045] 2) Preparation of BiCOl photocatalyst with adjustable thickness
[0046] Disperse 0.5, 1, 1.5, and 2 g of mannitol in 60 mL of ultrapure water, and stir to dissolve them, then add 0.97 g of Bi(NO 3 ) 3 ·5H 2 O was added therein respectively, after stirring for 20 minutes, 10 mL of 1 mol / L potassium chloride solution was added respectively, after stirring for 30 minutes, the obtained precipitate was centrifuged, washed repeatedly with ultrapure water and ethanol, and dried at 80°C to obtain BiOCl-0.5, BiOCl-1, BiOCl-1.5, BiOCl-2 nanos...
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