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Silver-doped titanium dioxide airgel coating preparation process and equipment

A technology of titanium dioxide and preparation process, which is applied in the field of preparation technology of silver-doped titanium dioxide airgel coating and equipment for preparing the coating on the substrate, can solve the problem of low utilization rate of silver and titanium dioxide, complex particle coating process, and relatively Low surface area and other problems, to achieve the effect of enhancing self-cleaning performance, inhibiting breeding and growth, and increasing specific surface area

Active Publication Date: 2016-08-24
SHANDONG BANGNI NEW BUILDING MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the specific surface area of ​​silver-doped titanium dioxide particles is low, the utilization rate of silver and titanium dioxide is low, and the curing of the particle coating has defects such as complicated process, harsh conditions, and complicated equipment.

Method used

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  • Silver-doped titanium dioxide airgel coating preparation process and equipment
  • Silver-doped titanium dioxide airgel coating preparation process and equipment
  • Silver-doped titanium dioxide airgel coating preparation process and equipment

Examples

Experimental program
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Effect test

Embodiment approach 1

[0021] Preparation of silver-doped titanium dioxide nano-aqueous sol: using butyl titanate (Ti(OC 4 h 9 ) 4 ) as raw material, with glacial acetic acid (CH 3 COOH) and urea (CO(NH 2 ) 2 ) as catalyst, [BMIM]Br ionic liquid as co-solvent, absolute ethanol as solvent, and doped with 10% silver nitrate (AgNO 3 ) aqueous solution, and the silver-doped titania nano-hydrosol was prepared by the sol method. The molar ratio of each substance is butyl titanate (Ti(OC 4 h 9 ) 4 ): water: absolute ethanol: silver nitrate: glacial acetic acid (CH 3 COOH), urea (CO(NH 2 ) 2 ): ionic liquid = 1:5:10:0.1:0.01:0.04:1. Butyl titanate (Ti(OC 4 h 9 ) 4 ) and glacial acetic acid (CH 3 COOH), half of absolute ethanol and mixed evenly to form solution A, water, ionic liquid, urea (CO(NH 2 ) 2 ) and the other half of absolute ethanol to form solution B. Add solution B dropwise to solution A under vigorous stirring. After stirring for 60 minutes, add silver nitrate solution with a mo...

Embodiment 2

[0030] Embodiment 2: The preparation process of the silver-doped titanium dioxide airgel coating with self-cleaning function is prepared on the glass fiber decorative ceiling substrate, the steps are as follows:

[0031] Preparation of silver-doped titanium dioxide nano-aqueous sol: using butyl titanate (Ti(OC 4 h 9 ) 4 ) as raw material, with glacial acetic acid (CH 3 COOH) and urea (CO(NH 2 ) 2 ) as catalyst, [BMIM]Br ionic liquid as co-solvent, absolute ethanol as solvent, and doped with 10% silver nitrate (AgNO 3 ) aqueous solution, and the silver-doped titania nano-hydrosol was prepared by the sol method. The molar ratio of each substance is butyl titanate (Ti(OC 4 h 9 ) 4 ): water: absolute ethanol: silver nitrate: glacial acetic acid (CH 3 COOH), urea (CO(NH 2 ) 2 ): ionic liquid = 1:5:10:0.1:0.01:0.04:1. Butyl titanate (Ti(OC 4 h 9 ) 4 ) and glacial acetic acid (CH 3 COOH), half of absolute ethanol and mixed evenly to form solution A, water, ionic liqui...

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Abstract

The invention relates to a silver-doped titanium dioxide aerogel coating preparation technology and equipment. The technology comprises a preparation step of a silver-doped titanium dioxide nano aqueous solution and a preparation step of a nano titanium dioxide aerogel coating; the equipment comprises a liquid state feed tank used for storing the silver-doped titanium dioxide nano aqueous solution, a spray gun connected to the liquid state feed tank, a nozzle on the spray gun, a transmission part used for transmitting a base material and a baking oven for drying a silver-doped titanium dioxide nano aqueous solution layer sprayed on the base material. The aerogel coating enhances the automatic cleaning performance of the base material, ordinary pressure preparation of the aerogel can be realized through usage of ionic liquid, production technology is simplified, and the equipment requirement and safety requirement are reduced.

Description

technical field [0001] The invention relates to the technical field of titanium compounds, in particular to a preparation process for a silver-doped titanium dioxide airgel coating with a self-cleaning function and equipment for preparing the coating on a substrate. Background technique [0002] Because nano-titanium dioxide has unique photocatalytic properties under ultraviolet light, nano-titanium dioxide has broad application prospects in air purification, water environment purification treatment, and self-cleaning. [0003] When nano-titanium dioxide is used as a photocatalyst, after absorbing ultraviolet light with a wavelength of less than 400nm, it will generate electron-hole pairs, making it super-hydrophilic, allowing water to completely spread on the surface of the coating instead of adhering to the surface pollutants, resulting in a self-cleaning effect. However, since titanium dioxide can only respond to ultraviolet light, the utilization rate under sunlight is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/50B01J35/00
Inventor 宁丽媛李玉成李凌云王付军宋银吉王振奎
Owner SHANDONG BANGNI NEW BUILDING MATERIALS CO LTD
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