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Copper nickel-zinc oxide composite nanocrystalline photocatalyst and preparation method and application thereof

A technology of zinc oxide nanocrystals and photocatalysts, applied in the direction of metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problems of high raw material costs and achieve short reaction times , controllable shape and simple preparation process

Active Publication Date: 2016-06-15
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the disadvantages of existing noble metal-zinc oxide composite nanocrystal photocatalysts such as high raw material cost, aiming to replace precious metals with cheap copper-nickel, to provide a copper-nickel-zinc oxide composite nanocrystal photocatalyst and its preparation method and application

Method used

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  • Copper nickel-zinc oxide composite nanocrystalline photocatalyst and preparation method and application thereof
  • Copper nickel-zinc oxide composite nanocrystalline photocatalyst and preparation method and application thereof
  • Copper nickel-zinc oxide composite nanocrystalline photocatalyst and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Add 0.2mmol copper acetylacetonate, 1.5mmol trioctylphosphine oxide, 4ml oleylamine, and 4ml benzyl alcohol into a four-neck flask, stir and mix under the protection of argon, then raise the temperature to 200°C, and keep it warm for 40min. In addition, add 0.15g of zinc acetate and 2ml of oleylamine into the three-necked flask, stir under the protection of argon until the mixture is uniform, keep the temperature at 80°C for about 20min, then suck the mixed solution with a syringe, and wait for the reaction in the four-necked flask After the solution was incubated for 40 minutes, it was immediately injected into the reaction solution in the four-necked bottle, and the whole injection process was about 30 seconds. After the injection was completed, the temperature was raised to 190°C and kept for 60 minutes. The reaction solution was naturally cooled to room temperature, ethanol was added to precipitate the product, and the reaction mother liquid was taken out by centrif...

Embodiment 2

[0035] Add 0.15 mmol of copper acetylacetonate, 0.5 mmol of trioctylphosphine oxide and 7 ml of oleylamine into a four-neck flask, stir and mix under the protection of argon, then raise the temperature to 200°C and keep it warm for 30 minutes. In addition, add 0.35g of zinc stearate and 2ml of oleylamine into a three-necked bottle, stir under the protection of argon until the mixture is uniform, and keep the temperature at 80°C for about 10 minutes, then suck up the mixed solution with a syringe, and put it in the four-necked bottle Immediately after the reaction solution was incubated for 30 minutes, it was immediately injected into the reaction solution in the four-neck bottle, and the entire injection process was about 20 seconds. After the injection was completed, the temperature was raised to 285°C and kept for 40 minutes. The reaction liquid is naturally cooled to room temperature, acetone is added to precipitate the product, the reaction mother liquid is taken out by ce...

Embodiment 3

[0038] Add 0.2mmol copper acetylacetonate, 0.3g dodecanediol, 0.8mmol trioctylphosphine oxide, 2ml oleylamine, and 3ml bibenyl ether into a four-neck flask, stir and mix under the protection of argon, and then heat up to 200 ℃, keep warm for 25min. In addition, add 0.15g of zinc acetate, 1ml of oleylamine, and 1.5ml of bibian ether into a three-necked bottle, stir under the protection of argon until the mixture is uniform, and keep the temperature at 75°C for about 15min, then suck up the mixed solution with a syringe, and wait for After the reaction solution in the four-necked bottle was kept warm for 25 minutes, it was immediately injected into the reaction solution in the four-necked bottle, and the whole injection process was about 40 s. After the injection was completed, the temperature was raised to 265°C and kept for 30 minutes. The reaction solution was naturally cooled to room temperature, ethanol was added to precipitate the product, and the reaction mother liquid w...

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Abstract

The invention provides a copper nickel-zinc oxide composite nanocrystalline photocatalyst and a preparation method and application thereof, and relates to a nanometer photocatalyst. Duplex metal of copper and nickel serves as a kernel of the copper nickel-zinc oxide composite nanocrystalline photocatalyst, the core is completely or partially coated with zinc oxide nanocrystalline, a stable heterogeneous interface is formed through epitaxial growth, and the composite nanocrystalline is formed. The preparation method comprises the steps that a metal precursor, alkylamine or a mixed solution of alkylamine and organic solvent and a surfactant are added into a reaction vessel, the materials are mixed and reacted, and a reaction solution A is obtained; a zinc oxide precursor and alkylamine or the mixed solution of alkylamine with the organic solvent are added into another vessel, the materials are heated and reacted, and a reaction solution B is obtained; the reaction solution B is injected into the reaction solution A, the temperature is raised to 190-300 DEG C, heat preservation is conducted for 10-120 min, the solution is cooled to room temperature, a product is washed with an organic solvent mixed solution, centrifugal separation and vacuum drying are conducted, and a product is obtained. The photocatalyst can be applied to preparation of a photocatalytic degradation agent of organic dye.

Description

technical field [0001] The invention relates to a nanometer photocatalyst, in particular to a copper-nickel-zinc oxide composite nanocrystal photocatalyst and a preparation method and application thereof. Background technique [0002] With the development of human society, the problem of environmental pollution has become increasingly prominent, and has aroused widespread concern from the public. Among all kinds of environmental pollution, chemical pollution is the most common, most important and most influential. Among them, the poisonous and harmful chemical substances in organic wastewater are particularly serious for water pollution. Therefore, effectively controlling and treating the damage of various chemical pollutants to water resources is the focus of comprehensive environmental management. At present, the main water treatment methods used are microbial treatment, physical adsorption, chemical oxidation and photolysis hydrolysis, etc. These methods have different ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/80B01J35/02B01J35/06C02F1/30C02F1/72C02F101/38C02F103/30
CPCC02F1/30C02F1/725C02F2101/308C02F2305/10B01J35/397B01J35/50B01J35/58B01J35/39
Inventor 陈远志曾德乾彭栋梁
Owner XIAMEN UNIV
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