Preparation method of hollow microsphere supported cerium or nitrogen-doped cuprous oxide photocatalyst
A technology of hollow microspheres and cuprous oxide, which is applied in the direction of catalyst activation/preparation, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., and can solve the problems of difficult recycling and low catalytic performance. Achieve the effects of light weight, increased specific surface area, and promising application prospects
Active Publication Date: 2022-07-12
MUDANJIANG NORMAL UNIV
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Problems solved by technology
[0003] The present invention aims to solve the technical problem that the existing powder cuprous oxide photocatalytic material has low catalytic performance and is difficult to recycle, and provides a preparation method of hollow microsphere-loaded cerium or nitrogen-doped cuprous oxide photocatalyst
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Embodiment 1
[0025] Embodiment 1: The preparation method of the hollow microbead-supported cerium or nitrogen-doped cuprous oxide photocatalyst of this embodiment is carried out according to the following steps:
[0026] 1. Measure 152 mL of 0.3 mol / L copper sulfate pentahydrate solution, 152 mL of 0.3 mol / L anhydrous sodium sulfite solution, 0.1485 g of cerium nitrate, 0.0135 g of urea, pH=6 HAc-NaA solution buffer solvent 40 mL, 5 g of Hollow microbeads with alumina, silicon dioxide and iron oxide as the main components; the diameter of the hollow microbeads is 50-100 microns, and the scanning electron microscope photos are as follows figure 1 shown; the hollow microspheres are coal gangue hollow microspheres purchased from Hebei Yonglong Bangda New Materials Co., Ltd., in which SiO 2 The mass percentage is 52% to 60%, Al 2 O 3 The mass percentage is 16% to 36%, Fe 2 O 3 The mass percentage is 2.28% to 14.63%;
[0027] 2. Pour 1 / 2 of the copper sulfate pentahydrate solution in step ...
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Abstract
The invention relates to a preparation method of a cerium or nitrogen-doped cuprous oxide photocatalyst supported by hollow microbeads, and the invention relates to a preparation method of a cuprous oxide photocatalyst. The invention is to solve the technical problems of low catalytic efficiency and difficult recovery of cuprous oxide photocatalyst. Method: Mix copper sulfate pentahydrate, cerium nitrate or urea into liquid a, then mix anhydrous sodium sulfite and buffer solvent into liquid b, heat the two liquids separately, add hollow microbeads to liquid a, mix liquid b It is quickly poured into the liquid a, and the hollow microbead-supported cerium or nitrogen-doped cuprous oxide photocatalyst is obtained through the operations of stirring and heating, aging, suction filtration and baking. The degradation rate of the photocatalyst to methyl orange under visible light reaches 68% to 72%, and the photocatalyst can be used in the fields of catalysis and environmental protection.
Description
technical field [0001] The invention relates to a preparation method of a cuprous oxide photocatalyst. Background technique [0002] Cuprous oxide is a kind of green and non-polluting material, the preparation process is simple, it can degrade organic pollutants in the visible light range, and its chemical properties are stable. It is a new type of photocatalyst. The catalyst activity is low, and due to the small particle size, it is difficult to recover, resulting in a waste of resources and an increase in manufacturing costs. Therefore, the present invention modifies the cuprous oxide by doping nitrogen and cerium elements, and then supports it on the hollow microbeads. , the activity of the supported photocatalyst is significantly improved, and the problem of difficult recovery is also solved. SUMMARY OF THE INVENTION [0003] The present invention aims to solve the technical problems of low catalytic performance and difficult recovery of the existing powdered cuprous ...
Claims
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IPC IPC(8): B01J27/24B01J23/83B01J37/03C02F1/30C02F101/34C02F101/38C02F101/30
CPCB01J27/24B01J23/83B01J37/03C02F1/30C02F2101/34C02F2101/38C02F2101/30B01J35/39Y02W10/37
Inventor 郝国栋郝春丽李春彦岳广臣丁林张兴
Owner MUDANJIANG NORMAL UNIV