Molybdenum-doped zinc indium sulfide (ZnIn2S4) hollow hierarchical structure photocatalyst applied to photocatalytic water splitting for hydrogen production, and preparation method thereof
A photocatalyst and hierarchical structure technology, which can be used in catalyst activation/preparation, physical/chemical process catalysts, chemical instruments and methods, etc., and can solve the problems that restrict the practical application of photo-splitting water for hydrogen production, low quantum efficiency and low energy conversion rate. , to achieve high-efficiency photocatalytic hydrogen production performance, conducive to large-scale industrial production, and the effect of mild conditions
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preparation example Construction
[0028] The preparation steps of the present invention are as follows:
[0029] Dissolve appropriate amount of molybdenum powder in H under ice bath 2 o 2Molybdenum-containing precursor solution was obtained in the solution, and the solution was added dropwise to 20 mL of ethanol solvent, then zinc chloride, indium chloride, and thioacetamide were dissolved in the above ethanol solution in a molar ratio of 1:2:4, and stirred After uniformity, it was transferred to a high-pressure reactor, kept at 120°C for 2 hours, and cooled to room temperature naturally. The obtained product was sequentially washed with deionized water and absolute ethanol, and vacuum-dried to obtain molybdenum-doped ZnIn 2 S 4 Hierarchical structure photocatalyst named M-ZIS.
Embodiment 1
[0031] Dissolve 0.212 mg molybdenum powder in 200 μL H under ice bath 2 o 2 Molybdenum-containing precursor solution was obtained in the solution, and the solution was added dropwise to 20 mL of ethanol solvent, then zinc chloride, indium chloride, and thioacetamide were dissolved in the above ethanol solution in a molar ratio of 1:2:4, and stirred After uniformity, it was transferred to a high-pressure reactor, kept at 120°C for 2 hours, and cooled to room temperature naturally. The obtained product was successively washed with deionized water and absolute ethanol, and vacuum-dried to obtain ZnIn with a molybdenum doping mass of 0.05%. 2 S 4 Hierarchical structured photocatalyst named M 0.05 -ZIS. Then 20 mg of the synthesized powder catalyst was accurately weighed and placed in a photo-splitting water reactor to test the hydrogen production performance of photo-splitting water.
Embodiment 2
[0033] Dissolve 0.423mg molybdenum powder in 200 μL H under ice bath 2 o 2 Molybdenum-containing precursor solution was obtained in the solution, and the solution was added dropwise to 20 mL of ethanol solvent, then zinc chloride, indium chloride, and thioacetamide were dissolved in the above ethanol solution in a molar ratio of 1:2:4, and stirred After uniformity, it was transferred to a high-pressure reactor, kept at 120°C for 2 hours, and naturally cooled to room temperature. The obtained product was washed with deionized water and absolute ethanol in turn, and vacuum-dried to obtain ZnIn with a molybdenum doping mass of 0.1%. 2 S 4 Hierarchical structured photocatalyst named M 0。1 -ZIS. Then 20 mg of the synthesized powder catalyst was accurately weighed and placed in a photo-splitting water reactor to test the hydrogen production performance of photo-splitting water.
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Application Information
- IPC
- B01J27/051; B01J37/08; B01J35/10; C01B3/04; B82Y30/00; B82Y40/00
- CPC
- B01J27/051; B01J37/082; C01B3/042; B82Y30/00; B82Y40/00; C01B2203/1076; C01B2203/0277; B01J35/60
- Inventors
- 黄彩进; 邢芳舒