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

A technology of photocatalyst and nanocrystal, which is applied in the field of copper-nickel-zinc oxide composite nanocrystal photocatalyst and its preparation, can solve the problem of high raw material cost, achieve short reaction time, good dispersion, and be conducive to repeated recycling.

Active Publication Date: 2018-07-31
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 its preparation method and application
  • Copper-nickel-zinc oxide composite nanocrystalline photocatalyst and its preparation method and application
  • Copper-nickel-zinc oxide composite nanocrystalline photocatalyst and its preparation method and application

Examples

Experimental program
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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

Copper-nickel-zinc oxide composite nanocrystalline photocatalyst and preparation method and application thereof, involving nanometer photocatalysts. The copper-nickel-zinc oxide composite nanocrystal photocatalyst uses a copper-nickel bimetal as a core, and the zinc oxide nanocrystal is completely or partially coated outside the core, forming a stable heterogeneous interface through epitaxial growth, and forming a composite nanocrystal. Preparation method: Add metal precursor, alkylamine or alkylamine and organic solvent mixture, and surfactant into a reaction vessel and mix and react to obtain reaction solution A; add zinc oxide precursor, alkylamine or alkylamine into another container. The mixture of alkyl amine and organic solvent is heated to react to obtain reaction liquid B. Inject reaction liquid B into reaction liquid A, then heat it up to 190-300°C, keep it for 10-120 minutes, then cool to room temperature, and mix the product with an organic solvent. The product is obtained after washing with liquid, centrifugation, and vacuum drying. Photocatalysts can be used in the preparation of photocatalytic degradation agents for organic dyes.

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 Patents(China)
IPC IPC(8): B01J23/80B01J35/02B01J35/06C02F1/30C02F1/72C02F101/38C02F103/30B01J35/00
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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