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Preparation method and applications of zinc and zinc oxide nanorod and carbon nano tube composite flexible membrane

A composite technology of zinc oxide nanorods and carbon nanotubes, applied in chemical instruments and methods, chemical/physical processes, physical/chemical process catalysts, etc., can solve the problems of non-catalytic degradation of organic matter, complex equipment, and cumbersome procedures. Achieve the effects of simple preparation process, low equipment energy consumption and convenient recycling

Inactive Publication Date: 2013-11-20
UNIV OF SHANGHAI FOR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It is a fixed non-flexible membrane with complex equipment and cumbersome procedures, and it does not have the function of catalytically degrading organic matter
[0004] The Chinese Patent Office has announced a method for preparing p-type zinc oxide films (application number: 03129300.X), which uses magnetron sputtering to form zinc oxide films on substrates, but these films are grown on substrates, not flexible film

Method used

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  • Preparation method and applications of zinc and zinc oxide nanorod and carbon nano tube composite flexible membrane
  • Preparation method and applications of zinc and zinc oxide nanorod and carbon nano tube composite flexible membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A) The multi-walled carbon nanotubes prepared by the chemical vapor deposition method are placed in absolute ethanol and dispersed by strong ultrasonic for 20 minutes, and the multi-walled carbon nanotubes are fully dispersed and suspended in the solution. The selected multi-walled carbon nanotubes have a diameter of 5-15 nm and a length of about 100-400 μm.

[0025] B) Put the nano-zinc powder particles and zinc oxide nanorod composites prepared by vibration grinding into a three-necked flask, preheat to the reaction temperature, pass in water vapor for hydrolysis, and fully react to obtain zinc nanoparticles with a diameter of 10-50nm and a length of 1-2 Zinc oxide nanorod composite body of 5 μm, then put zinc and zinc oxide nanorod composite body in the carbon nanotube mixture prepared in step A) and mix evenly, and ultrasonically disperse for 15 minutes, wherein: zinc oxide nanorod powder and carbon nanorod powder The mass ratio of the tubes is 7:10.

[0026] C) Po...

Embodiment 2

[0030] Same as [Example 1], except that step B) the mass ratio of zinc, zinc oxide nanorod powder and carbon nanotubes is 11:10; step D) fully dry the flexible film in a vacuum drying oven, remove the residual solution, and obtain Zinc oxide nanorods and carbon nanotubes are composite flexible films, and the film thickness is about 15-20 μm. Degradation effect see figure 2 As shown in the film-2 curve, the degradation rate was 56.73% in 140 minutes.

Embodiment 3

[0032] Same as [Example 1], except step B) the mass ratio of zinc, zinc oxide nanorods and carbon nanotubes is 16:10 to prepare a flexible film; step D) fully dry the flexible film in a vacuum drying oven to remove residual solution to obtain a composite flexible film of zinc oxide nanorods and carbon nanotubes, with a film thickness of about 20-22 μm. Degradation effect see figure 2 As shown in the film-3 curve, the degradation rate was 74.73% in 140 minutes.

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Abstract

The invention discloses a preparation method and applications of a zinc and zinc oxide nanorod and a carbon nano tube composite flexible membrane. The preparation method comprises following steps: putting a raw material of zinc powder in a vibration mill to prepare zinc nano particles, subjecting the prepared zinc nano particles to carry out reactions with water steam to generate a zinc and zinc oxide nanorod complex, which has a diameter of 10 to 50 nm and a length of 1 to 5 [mu]m, putting the zinc and zinc oxide nanorod complex in the prepared carbon nano tube mixed liquid, evenly mixing, then subjecting the liquid to an ultrasonic dispersion treatment, wherein the mass ratio of the zinc and zinc oxide nanorod complex to the carbon nano tube being 7 to 87:10, pouring the prepared mixed liquid into a filtration device, making the solid to participate on the filter paper, drying and then separating out the flexible membrane, drying the flexible membrane in vacuum to remove residual solution to obtain the zinc oxide nanorod and carbon nano tube composite flexible membrane. The preparation method has the advantages of simple preparation process, low equipment cost, and easy industrialization. The prepared flexible membrane has a very good catalytic degradation effect on organic pollutants in the absence of light.

Description

technical field [0001] The invention relates to a preparation method and application of a zinc, zinc oxide nanorod and carbon nanotube composite flexible film, which is used in the technical field of organic pollutant degradation. Background technique [0002] Zinc oxide, especially lead-zinc ore zinc oxide nanomaterials, is a new type of wide-bandgap semiconductor material with a bandgap of 3.37eV and an exciton binding energy of 60meV at room temperature. The one-dimensional structure of nano-zinc oxide has unique characteristics and is widely used in solar cells, ultraviolet lasers, light-emitting diodes and photocatalytic degradation of organic matter. Zinc oxide is used as a photocatalyst for the degradation of catalysts. The catalytic reaction must be carried out under certain light conditions, and the film formation of zinc oxide mainly includes magnetron sputtering, sol-gel method, and laser ablation. The method such as method is to form a film on a certain substrat...

Claims

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Application Information

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IPC IPC(8): B01J23/06B01J35/02A62D3/00
Inventor 李生娟王树林张梅徐波
Owner UNIV OF SHANGHAI FOR SCI & TECH
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