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Preparation method of copper nanosheet/zinc oxide nanosheet composite material and application

A zinc oxide nanometer and composite material technology is applied in the field of preparation of nano copper sheet/zinc oxide nanosheet composite material, which can solve the problems of low utilization rate of sunlight and high recombination rate of zinc oxide electrons and holes, and achieves the operation method. Simple, broad development prospects and practical application space, the effect of few synthesis steps

Inactive Publication Date: 2017-09-15
TONGJI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among the oxides, the research on zinc oxide is relatively mature, but zinc oxide without any modification has a high recombination rate of electrons and holes, and the utilization rate of sunlight is not high, so it can only use ultraviolet light.

Method used

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  • Preparation method of copper nanosheet/zinc oxide nanosheet composite material and application
  • Preparation method of copper nanosheet/zinc oxide nanosheet composite material and application
  • Preparation method of copper nanosheet/zinc oxide nanosheet composite material and application

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Embodiment 1

[0032] A method for preparing a nano-copper flake / zinc oxide nano-flake composite material having a strong degradation effect on rhodamine B and methyl orange, the specific steps are as follows:

[0033] (1) Synthesis of nano-copper flakes: First, 0.1 mmol of copper bromide was dissolved in distilled water, ultrasonically dissolved, and magnetically stirred. Add 0.05 mmol CTAB (cetyltrimethylammonium bromide), and stir magnetically. Add 2mmolVC (ascorbic acid), and magnetically stir. Slowly add 2ml of 0.5mol / L NaOH solution dropwise and stir. Finally, transfer it to the liner of a polytetrafluoroethylene reactor, and heat it with water at 110° C. for 1 hour. After naturally cooling to room temperature, the product was collected, washed several times with distilled water and ethanol, and centrifuged. Finally, it was dried in a vacuum oven for further characterization.

[0034] (2) Preparation of seed crystal solution: Weigh 0.2094g of zinc acetate, dissolve it in 120ml of a...

Embodiment 2

[0042] A method for preparing a nano-copper flake / zinc oxide nano-flake composite material having a strong degradation effect on rhodamine B and methyl orange, the specific steps are as follows:

[0043] (1) Synthesis of nano-copper flakes: First, 0.1 mmol of copper bromide was dissolved in distilled water, ultrasonically dissolved, and magnetically stirred. Add 0.05 mmol CTAB (cetyltrimethylammonium bromide), and stir magnetically. Add 2mmolVC (ascorbic acid), and stir magnetically. Slowly add 2ml of 0.5mol / L NaOH solution dropwise and stir. Finally, transfer it to the liner of a polytetrafluoroethylene reactor, and heat it with water at 110° C. for 1 hour. After naturally cooling to room temperature, the product was collected, washed several times with distilled water and ethanol, and centrifuged. Finally, it was dried in a vacuum oven for further characterization.

[0044] (2) Preparation of seed crystal solution: Weigh 0.2094g of zinc acetate, dissolve it in 120ml of a...

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Abstract

The invention relates to a preparation method and application of a copper nanosheet / zinc oxide nanosheet composite material. At room temperature, copper nanosheets are dispersed in a PVP (polyvinylpyrrolidone) solution, and magnetic stirring is carried out, so that PVP is adsorbed on the surfaces of the copper nanosheets. The copper nanosheets impregnated with the PVP are immersed in a zinc oxide seed crystal solution and kept still. The copper nanosheets are immersed in a mixed solution of zinc nitrate hexahydrate and hexamethylenetetramine, are loaded into a polytetrafluoroethylene liner, and are put into a sealed reaction kettle liner to carry out hydrothermal reaction. Temperature is decreased to room temperature, centrifugal washing is carried out for multiple times, vacuum drying is carried out, and thereby the copper nanosheet / zinc oxide nanosheet composite nanomaterial is obtained. The copper nanosheet / zinc oxide nanosheet composite material is used for photocatalytically degrading rhodamine b and methyl orange dye solutions. Compared with the prior art, the preparation method is used for synthesizing the copper nanosheet / zinc oxide nanosheet composite material for the first time, the copper nanosheet / zinc oxide nanosheet composite material is of an array structure, the synthesis method is simple and easy to implement, and moreover, the control on product morphology is realized.

Description

technical field [0001] The invention belongs to the technical field of inorganic nano-materials, in particular to a preparation method and application of a nano-copper sheet / zinc oxide nano-sheet composite material Background technique [0002] After mankind entered the 21st century, with the rapid development of modern industry, a large number of industrial "three wastes" were discharged to the environment without treatment or failed to meet the standards, causing huge damage to the environment. Various environmental problems have become prominent around the world, such as Japan's Minamata disease, "photochemical smog" in Los Angeles, frequent acid rain in various places, etc. The control and treatment of environmental pollution is a major issue that all mankind faces and needs to be solved urgently. Traditional environmental treatment technologies have problems such as high energy consumption, low treatment rate, and secondary pollution, which make it difficult for people ...

Claims

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Application Information

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IPC IPC(8): B01J23/80B01J35/02B01J37/10C02F1/32C02F101/30
CPCC02F1/32B01J23/80B01J37/10C02F2305/10C02F2101/308B01J35/40B01J35/39
Inventor 吴庆生徐鸿武
Owner TONGJI UNIV
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