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Method for preparing nano-titanium dioxide photocatalysis transparent glass coating by electrospinning technology

A technology of nano-titanium dioxide and electrospinning technology is applied in the field of manufacturing self-cleaning transparent glass coatings, which can solve the problems of high equipment investment, impossible to put into use in a large area, and complicated preparation process steps.

Inactive Publication Date: 2014-05-28
LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although high-quality TiO 2 coatings can be prepared by using the above-mentioned technologies, these technologies either require high equipment investment or cumbersome preparation process steps, making it impossible to put them into use on a large scale

Method used

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  • Method for preparing nano-titanium dioxide photocatalysis transparent glass coating by electrospinning technology
  • Method for preparing nano-titanium dioxide photocatalysis transparent glass coating by electrospinning technology
  • Method for preparing nano-titanium dioxide photocatalysis transparent glass coating by electrospinning technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Prepare a precursor solution containing 0.0wt% DEA, and then use this solution to prepare TiO by electrospinning 2 Glass coating. The specific steps are as follows: First, take 4.0g tetrabutyl titanate, 10.0g acetic acid and 8.0g ethanol in a closed container and stir for about 30min to obtain the first homogeneous sol; in addition, take 1.6g PVP and slowly add 4.0g DMF and 12.0g ethanol solution Stir continuously in the middle for more than 12h until the PVP is completely dissolved to obtain the second sol; mix and stir the above two sols evenly to obtain the precursor solution for electrospinning. Ordinary glass slides were placed in deionized water, acetone, ethanol and isopropanol in sequence and ultrasonically cleaned, and placed at 80 o C is dried for later use. The flat collection device directly below the electrospinning nozzle is wrapped with aluminum foil, and the clean glass substrate is placed on the flat collection device. The distance between t...

Embodiment 2

[0035] Prepare a precursor solution containing 2.0 wt% DEA, and then use this solution to prepare TiO by electrospinning 2 Glass coating. The specific steps are as follows: First, take 4.0g tetrabutyl titanate, 10.0g acetic acid and 8.0g ethanol in a closed container and stir for about 30min to obtain the first homogeneous sol; in addition, take 1.6g PVP and slowly add 4.0g DMF and 12.0g ethanol solution Stir continuously in the medium for more than 12h until the PVP is completely dissolved to obtain the second sol; mix the above two sols and add 2.0 wt% DEA and stir evenly to obtain the precursor solution for electrospinning. Ordinary glass slides were placed in deionized water, acetone, ethanol and isopropanol in sequence and ultrasonically cleaned, and placed at 80 o C is dried for later use. The flat collection device directly below the electrospinning nozzle is wrapped with aluminum foil, and the clean glass substrate is placed on the flat collection device. T...

Embodiment 3

[0037] Prepare a precursor solution containing 4.0 wt% DEA, and then use this solution to prepare TiO by electrospinning 2 Glass coating. The specific steps are as follows: First, take 4.0g tetrabutyl titanate, 10.0g acetic acid and 8.0g ethanol in a closed container and stir for about 30min to obtain the first homogeneous sol; in addition, take 1.6g PVP and slowly add 4.0g DMF and 12.0g ethanol solution Stir continuously in the medium for more than 12h until the PVP is completely dissolved to obtain the second sol; mix the above two sols and add 4.0 wt% DEA and stir evenly to obtain the precursor solution for electrospinning. Ordinary glass slides were placed in deionized water, acetone, ethanol and isopropanol in sequence and ultrasonically cleaned, and placed at 80 o C is dried for later use. The flat collection device directly below the electrospinning nozzle is wrapped with aluminum foil, and the clean glass substrate is placed on the flat collection device. T...

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Abstract

The invention discloses a method for preparing a nano-titanium dioxide photocatalysis transparent glass coating by an electrospinning technology. The method comprises the specific steps as follows: (1) putting tetrabutyl titanate, acid and ethyl alcohol into a closed container, performing uniform stirring to obtain first sol, dissolving PVP (polyvinyl pyrrolidone) in DMF (dimethyl formamide), performing continuous stirring until the PVP is completely dissolved to obtain second sol, mixing the two types of sol, adding DEA (diethanol amine), and performing uniform stirring to obtain an electrospinning precursor solution; (2) putting a common glass slide serving as a glass substrate placed in a position right below an electrospinning spraying head, fixing the distance between the electrospinning spraying head and the glass substrate, and changing the flowing speed of the electrospinning precursor solution for spraying; (3) after electrospinning spraying is complete, calcining a product to obtain the nano-titanium dioxide photocatalysis transparent glass coating. The equipment is simple, and the process is simplified; the investment cost is low; the nano-titanium dioxide photocatalysis transparent glass coating can be widely applied to manufacturing of inorganic TiO2 nano particles.

Description

technical field [0001] The invention belongs to the field of manufacturing self-cleaning transparent glass coatings, and more specifically relates to a method for preparing nano-titanium dioxide photocatalytic transparent glass coatings by using electrostatic spinning technology. Background technique [0002] In recent years, due to the increasingly serious environmental pollution and energy shortage, self-cleaning glass has attracted more and more attention. Self-cleaning glass surface coatings are mainly divided into two categories according to hydrophilicity: super-hydrophobic self-cleaning glass coatings (based on lotus leaf effect) and super-hydrophilic self-cleaning glass coatings. Both self-cleaning glasses are able to keep themselves clean under the action of water. [0003] At present, the self-cleaning glass coatings developed at home and abroad are mainly concentrated on TiO 2 Superhydrophilic self-cleaning glass of inorganic membrane materials. This TiO 2...

Claims

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Application Information

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IPC IPC(8): C03C17/23
Inventor 李芳刘东旭李其明
Owner LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
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