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Method for preparing superhydrophobic CNTs/TiO2 hybrid film on base plate

A super-hydrophobic, substrate technology, applied in the direction of liquid chemical plating, metal material coating process, coating, etc., to achieve the effect of simple equipment, low cost, and low operating temperature

Active Publication Date: 2014-04-30
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above methods require multi-step reactions or stringent preparation conditions

Method used

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  • Method for preparing superhydrophobic CNTs/TiO2 hybrid film on base plate
  • Method for preparing superhydrophobic CNTs/TiO2 hybrid film on base plate
  • Method for preparing superhydrophobic CNTs/TiO2 hybrid film on base plate

Examples

Experimental program
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Effect test

Embodiment 1

[0026] Add 0.1mL of cerium oxide polishing solution (concentration: 1%) dropwise on ordinary float glass with length 50mm×width 30mm×height 1mm, polish it back and forth with a sander, and then clean it with deionized water to obtain a polished substrate. piece. Prepare deposition solution, 0.5M (NH 4 ) 2 TiF 6 and 0.5M H 3 BO 3 solution, measure the prepared solution in the container, (NH 4 ) 2 TiF 6 and H 3 BO 3 The dosages are 100mL and 500mL respectively, and then 0.1g of carbon nanotube (10%, aqueous dispersion) solution is added. Immerse the polished substrate vertically in a container containing a mixed deposition solution, place the entire container in a constant temperature water bath, deposit at 25°C for 48 hours, take out the sample, rinse it with deionized water, and store it at room temperature Naturally air-dried to obtain a sample with a good surface deposition. Spin-coat 0.1 mL of fluorosilane solution on the deposited glass surface. The modified su...

Embodiment 2

[0028]Add 10mL cerium oxide polishing solution (concentration 50%) dropwise on ordinary float glass with length 50mm×width 30mm×height 1mm, polish back and forth with a sander, and then clean it with deionized water to obtain a polished substrate . Preparation of deposition solution, 0.005M (NH 4 ) 2 TiF 6 and 0.015M H 3 BO 3 The mixed solution, measure the prepared solution in the container, (NH 4 ) 2 TiF 6 and H 3 BO 3 The dosages are 50mL and 50mL respectively, and then 10g of carbon nanotube (1%, aqueous dispersion) solution is added. Immerse the polished substrate vertically in a container containing a mixed deposition solution, place the entire container in a constant temperature water bath, deposit at 100°C for 3 hours, take out the sample, rinse it with deionized water, and leave it at room temperature Naturally air-dried to obtain a sample with a good surface deposition. Spin-coat 10 mL of fluorosilane solution on the deposited glass surface. The modified ...

Embodiment 3

[0030] Add 0.5mL cerium oxide polishing solution (concentration 25%) dropwise on ordinary float glass with length 50mm×width 30mm×height 1mm, polish it back and forth with a sander, and then clean it with deionized water to obtain a polished substrate. piece. Prepare deposition solution, 0.05M (NH 4 ) 2 TiF 6 and 0.25M H 3 BO 3 The mixed solution, measure the prepared solution in the container, (NH 4 ) 2 TiF 6 and H 3 BO 3 The dosages were 100 mL and 20 mL respectively, and then 5 g of carbon nanotube (5%, aqueous dispersion) solution was added. The substrate whose surface has been polished is vertically immersed in a container containing a mixed deposition solution, and the entire container is placed in a constant temperature water bath, and deposited at 50°C for 20h. Finally, the sample was taken out, rinsed with deionized water, and dried naturally at room temperature to obtain a sample with good surface deposition. Spin-coat 5 mL of fluorosilane solution on the ...

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Abstract

The invention discloses a method for preparing a superhydrophobic CNTs / TiO2 hybrid film on a substrate, and relates to CNTs / TiO2 hybrid films. The method aims at preparing the superhydrophobic CNTs / TiO2 hybrid film of a high-dispersion and uniform size TiO2 nanoparticle loaded carbon nanotube on the substrate through a low temperature liquid phase sedimentation method; a mixed solution of ammonium hexafluorotitanate and boric acid is used as a raw material, meanwhile, the carbon nanotube is added, and the CNTs / TiO2 hybrid film is prepared on the substrate through the low temperature liquid phase sedimentation method. The method comprises the steps as follows: 1) surface polishing of the substrate; 2) surface sedimentation of the substrate; 3) surface ornament and solidification of the substrate. The CNTs / TiO2 hybrid film of the high-dispersion and uniform size TiO2 nanoparticle loaded carbon nanotube can be obtained without complex treatment. Before and after coated with fluorosilane on the surface, the CNTs / TiO2 hybrid film always has the photocatalysis effect. Therefore, the superhydrophobic CNTs / TiO2 hybrid film is a film material with better performance and self-cleaning function.

Description

technical field [0001] The present invention relates to CNTs / TiO 2 Hybrid thin films, especially involving the preparation of a functional oxide TiO on substrates by low-temperature liquid deposition 2 Uniformly loaded on carbon nanotubes CNTs film. Background technique [0002] The preparation of superhydrophobic surfaces and the study of theoretical models play a vital role in the practical application of anti-fog, anti-fouling and self-cleaning. The well-known theory is that with a special micro-nano concave-convex structure, combined with a low surface energy coating, a super-hydrophobic surface can be formed. [0003] CNTs due to its unique multi-electronic properties and hollow tubular, high specific surface area structure. One of the most popular carbon-based materials used in the fields of light, electricity, and heat. [0004] TiO 2 It is one of the most potential materials in the fields of environmental purification, dye-sensitized solar cells, and gas sensing...

Claims

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Application Information

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IPC IPC(8): C23C18/00
Inventor 周忠华吴玉萍黄悦
Owner XIAMEN UNIV
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