A preparation of superhydrophobic cnts/tio on a substrate 2 hybrid thin film method

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

Active Publication Date: 2016-08-17
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

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

Method used

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  • A preparation of superhydrophobic cnts/tio on a substrate <sub>2</sub> hybrid thin film method
  • A preparation of superhydrophobic cnts/tio on a substrate <sub>2</sub> hybrid thin film method
  • A preparation of superhydrophobic cnts/tio on a substrate <sub>2</sub> hybrid thin film method

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 it 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 modifi...

Embodiment 3

[0030] Add 0.5mL of cerium oxide polishing solution (concentration: 25%) 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. 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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Patent Type & Authority Patents(China)
IPC IPC(8): C23C18/00
Inventor 周忠华吴玉萍黄悦
Owner XIAMEN UNIV
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