Nickel film and zinc oxide nanorod composite material and its preparation method and application
A technology of zinc oxide nanorods and composite materials, which is applied in the field of nickel film and zinc oxide nanorod composite materials and their preparation, can solve the problems of less utilization and fast recombination of photogenerated electron holes, and achieves good stability and easy operation. , the effect of excellent photocatalytic performance
Active Publication Date: 2021-08-10
TONGJI UNIV
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Problems solved by technology
However, the zinc oxide photocatalytic material itself also has defects. Due to the wide band gap, it can only use the ultraviolet part of sunlight, which accounts for a small proportion, and seldom use the visible part of sunlight. In addition, there are photogenerated electron holes. Compound faster problems
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[0035] A method for preparing a nickel film and zinc oxide nanorod composite material capable of improving the photocatalytic efficiency of zinc oxide, comprising the steps of:
[0036] (A) Add 7ml of collodion solution dropwise to a clean and dry glass culture dish (specification φ90mm), rotate it to disperse it evenly, and then let it air dry naturally to obtain a collodion film, which is peeled off for later use; the whole process is ventilated operation in the cabinet;
[0037] (B) Inject 20ml, 5mmol / L NiCl into the petri dish (specification φ60mm) 2 ·6H 2 O aqueous solution, sealed with the collodion film prepared in step (A), then inverted and vertically inserted into a container containing 20ml, 50mmol / L KBH 4 In the petri dish of the solution, after reacting at room temperature for about 24 hours, the NiCl 2 ·6H 2 A black product is generated on one side of the collodion film of the O aqueous solution; the black product is collected, washed several times by centrif...
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The invention belongs to the technical field of photocatalytic materials, and relates to a nickel film and zinc oxide nanorod composite material, a preparation method and application thereof. Firstly, the collodion film was used as a template to prepare a nickel film through the reduction of potassium borohydride, and the nickel film soaked in PVP was soaked in the zinc oxide seed solution for several hours to absorb a layer of zinc oxide seed. Finally, put it in a mixed solution of zinc nitrate and HMT at a certain concentration, heat it in low temperature water for several hours, and then the nickel film-zinc oxide nanorod composite material can be obtained. The raw material of the invention is cheap, the preparation process is simple, and it is easy to popularize. The prepared Ni film-ZnO nanorod composite material has better photocatalytic performance than pure ZnO nanorod material.
Description
technical field [0001] The invention belongs to the technical field of photocatalytic materials, and in particular relates to a nickel film and zinc oxide nanorod composite material and a preparation method and application thereof. Background technique [0002] With the rapid development of industry, a large amount of industrial wastewater is discharged into the natural environment, and water pollution is becoming more and more serious. There are many kinds of organic pollutants in these wastewaters, and a large part is teratogenic. Therefore, how to solve the pollution problem in the water body has become one of the problems to be solved urgently. [0003] As a new type of photocatalytic technology, zinc oxide photocatalysis is widely used in sewage treatment because of its mild preparation conditions, no secondary pollution, good chemical stability, and low price. However, the zinc oxide photocatalytic material itself also has defects. Due to the wide band gap, it can on...
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IPC IPC(8): B01J23/80B01J37/16B01J37/06B01J37/34B01J37/10C02F1/30C02F101/34C02F101/36C02F101/38
CPCB01J23/80B01J37/06B01J37/10B01J37/16B01J37/343C02F1/30C02F2101/308C02F2101/34C02F2101/36C02F2101/38C02F2305/10
Inventor 吴庆生唐益国
Owner TONGJI UNIV