Nickel diselenide/indium zinc sulfide composite photocatalyst as well as preparation method and application thereof
A technology of composite light and catalyst, applied in the field of photocatalytic materials, can solve the problems of limited wide application and expensive precious metal, and achieve the effects of strong controllability, simple steps and high practical value
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[0028] The preparation steps of the present invention are as follows:
[0029] (1) Preparation of zero-dimensional NiSe by hydrothermal method 2 nanoparticles
[0030]0.228 g of selenium powder and 2.857 g of sodium hydroxide were dissolved in 25 mL of deionized water and stirred. The mixed solution was transferred to an autoclave and reacted at a constant temperature of 180 °C for 12 h. The resulting solution was NaHSe solution.
[0031] Dissolve nickel nitrate hexahydrate (0.1 mmol), sodium citrate (0.1 mmol), and cyclohexamethylenetetramine (0.25 mmol) in 40 mL of deionized water and stir for 30 min, then transfer the mixed solution to an autoclave React at a constant temperature of 120 °C for 12 h. After cooling, NaHSe solution was added to it, and the mixed solution was transferred to an autoclave to react at a constant temperature of 140 °C for 12 h, then cooled to room temperature naturally, and the obtained precipitate was washed with deionized water several times an...
Embodiment 1
[0036] (1) Preparation of zero-dimensional NiSe by hydrothermal method 2 nanoparticles
[0037] 0.228 g of selenium powder and 2.857 g of sodium hydroxide were dissolved in 25 mL of deionized water and stirred. The mixed solution was transferred to an autoclave and reacted at a constant temperature of 180 °C for 12 h. The resulting solution was NaHSe solution.
[0038] Dissolve nickel nitrate hexahydrate (0.1 mmol), sodium citrate (0.1 mmol), and cyclohexamethylenetetramine (0.25 mmol) in 40 mL of deionized water and stir for 30 min, then transfer the mixed solution to an autoclave React at a constant temperature of 120 °C for 12 h. After cooling, NaHSe solution was added to it, and the mixed solution was transferred to an autoclave to react at a constant temperature of 140 °C for 12 h, then cooled to room temperature naturally, and the obtained precipitate was washed with deionized water several times and then dried to obtain NiSe 2 powder.
[0039] (2) Preparation of 0D / 2...
Embodiment 2
[0042] (1) Preparation of zero-dimensional NiSe by hydrothermal method 2 nanoparticles
[0043] 0.228 g of selenium powder and 2.857 g of sodium hydroxide were dissolved in 25 mL of deionized water and stirred. The mixed solution was transferred to an autoclave and reacted at a constant temperature of 180 °C for 12 h. The resulting solution was NaHSe solution.
[0044] Dissolve nickel nitrate hexahydrate (0.1 mmol), sodium citrate (0.1 mmol), and cyclohexamethylenetetramine (0.25 mmol) in 40 mL of deionized water and stir for 30 min, then transfer the mixed solution to an autoclave React at a constant temperature of 120 °C for 12 h. After cooling, NaHSe solution was added to it, and the mixed solution was transferred to an autoclave to react at a constant temperature of 140 °C for 12 h, then cooled to room temperature naturally, and the obtained precipitate was washed with deionized water several times and then dried to obtain NiSe 2 powder.
[0045] (2) Preparation of 0D / 2...
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