阅读说明：本技术 一种高渗透性的光触媒溶液及其应用 (High-permeability photocatalyst solution and application thereof ) 是由 蔺斌 于 2021-09-17 设计创作，主要内容包括：本发明公开了一种高渗透性的光触媒溶液及其应用,技术要点是以无水乙醇作为光触媒的载体,通过对无水乙醇和光触媒进行质量配比,加入聚二乙醇作为软化剂,形成光触媒溶液。采用独特的应用方法通过采用光触媒溶液进行浸泡处理,可以有效的将光触媒液体渗透进物体的细纹或者纺织物的纤维上,从而增大了光触媒的附着面积,提高光催化效率,同时也保证了光触媒附着颗粒的大小和附着的均匀度,不会因发生板结而失去光催化能力。(The invention discloses a high-permeability photocatalyst solution and application thereof. By adopting a unique application method and adopting the photocatalyst solution for soaking treatment, the photocatalyst liquid can be effectively permeated into fine grains of an object or fibers of a textile, so that the attachment area of the photocatalyst is increased, the photocatalytic efficiency is improved, the size and the attachment uniformity of the photocatalyst attachment particles are ensured, and the photocatalytic capacity cannot be lost due to hardening.)

1. The high-permeability photocatalyst solution is characterized in that absolute ethyl alcohol is used as a photocatalyst carrier, the absolute ethyl alcohol and a photocatalyst are mixed according to the mass ratio, and polyethylene glycol is added to be used as a softening agent to form the photocatalyst solution.

2. The photocatalyst solution with high permeability as claimed in claim 1, wherein the mass ratio of the photocatalyst to the absolute ethyl alcohol is 0.8% -13%.

3. The photocatalyst solution with high permeability as claimed in claim 1, wherein the mass fraction of the polyethylene glycol is 1% to 5%.

4. The photocatalyst solution with high permeability as claimed in claim 1, wherein the photocatalyst is anatase titanium dioxide.

5. The highly permeable photocatalyst solution as claimed in claim 1, wherein the anatase titanium dioxide has an average particle diameter of 3 to 5 nm.

6. The photocatalyst solution with high permeability as claimed in claim 1, wherein the photocatalyst solution with high permeability is applied to inorganic materials including silica-rich glass fiber and polyurethane fiber.

7. The highly permeable photocatalyst solution as claimed in claim 1, wherein said method for applying the highly permeable photocatalyst solution comprises the steps of:

the method comprises the following steps: soaking the high silica raw cloth in a potassium hydroxide solution for 40 minutes;

step two: after soaking, washing the soaked materials with clear water, putting the materials into a drying box, and drying the materials for 10 minutes at the temperature of 150 ℃;

step three: and then soaking the high silica cloth in the photocatalyst solution for 1 minute, taking out the high silica cloth, and naturally airing the high silica cloth.

8. The photocatalyst solution with high permeability as claimed in claim 7, wherein the means for attaching the photocatalyst solution comprises soaking, brushing or spraying.

Technical Field

The invention relates to the field of photocatalysts, in particular to a high-permeability photocatalyst solution and application thereof.

Background

The conventional photocatalyst solution is coated on the surface of an object by using water or a photocatalytic liquid formed by mutually dissolving other solutions and a photocatalyst to form a photocatalyst film, and photocatalyst particles are hardened and aggregated into large-particle substances under the condition of drying the solution, so that the photocatalytic capacity is reduced. Although the photocatalytic reaction has a certain effect, the photocatalytic efficiency is low. The characteristic of tiny photocatalyst particles cannot be completely utilized, and the photocatalyst particles are infiltrated into tiny fine lines or internal fibers on the surface of an object, so that higher photocatalytic efficiency cannot be achieved.

Disclosure of Invention

The invention aims to solve the problems that photocatalyst particles are hardened and aggregated into large particles in the background technology, so that the photocatalytic capacity is reduced, the photocatalyst particles cannot be completely tiny, and the photocatalyst particles completely permeate to achieve higher photocatalytic efficiency, and the like.

The invention has the technical scheme that the high-permeability photocatalyst solution is formed by taking absolute ethyl alcohol as a photocatalyst carrier, mixing the absolute ethyl alcohol and the photocatalyst by mass ratio and adding polyethylene glycol as a softening agent.

In order to further supplement the technical scheme, the mass ratio of the photocatalyst to the absolute ethyl alcohol is 0.8-13%.

In order to further supplement the technical scheme, the mass fraction of the polyethylene glycol is 1-5%.

In order to further supplement the technical scheme, the photocatalyst is anatase titanium dioxide.

In order to further supplement the technical scheme, the average particle size of the anatase titanium dioxide is 3-5 nm.

To further complement the present solution, the highly permeable photocatalyst solution is applied to inorganic materials, including high silica glass fibers and polyurethane fibers.

In order to further supplement the technical scheme, the application method of the high-permeability photocatalyst solution comprises the following steps:

the method comprises the following steps: soaking the high silica raw cloth in a potassium hydroxide solution for 40 minutes;

step two: after soaking, washing the soaked materials with clear water, putting the materials into a drying box, and drying the materials for 10 minutes at the temperature of 150 ℃;

step three: and then soaking the high silica cloth in the photocatalyst solution for 1 minute, taking out the high silica cloth, and naturally airing the high silica cloth.

In order to further supplement the technical scheme, the mode of attaching the photocatalyst solution comprises soaking, brushing or spraying.

The beneficial effects are that: can effectually permeate into the fine lines of object or the fibre of fabric with photocatalyst liquid to increased the attached area of photocatalyst, improved photocatalysis efficiency, also guaranteed simultaneously that the size of photocatalyst attached particle and adnexed degree of consistency can not lose the photocatalysis ability because of taking place to harden.

Detailed Description

A high-permeability photocatalyst solution is prepared by using absolute ethyl alcohol as a carrier of a photocatalyst, mixing the absolute ethyl alcohol and the photocatalyst in a mass ratio, and adding polyethylene glycol as a softening agent to form the photocatalyst solution. Wherein the mass ratio of the photocatalyst to the absolute ethyl alcohol is 0.8-13%, and the mass fraction of the polyethylene glycol is 1-5%; the photocatalyst is anatase titanium dioxide, and the average particle size is 3-5 nm. The photocatalyst solution with high permeability is applied to inorganic materials, including high silica glass fibers and polyurethane fibers.

Comparative example

The high silica cloth used in the experiment has a surface size of 1000 square millimeters, and no photocatalyst solution is adopted.

The experimental steps are as follows: firstly, soaking high silica cloth in a potassium hydroxide solution for 40 minutes, wherein the potassium hydroxide solution comprises 30ml of absolute ethyl alcohol, 20ml of water and 0.1g of potassium hydroxide, washing the soaked high silica cloth with clear water, then placing the high silica cloth in a drying box, drying the high silica cloth at the temperature of 150 ℃ for 10 minutes, and carrying out morphology analysis on the high silica cloth, wherein the fabric structure is relatively loose, and the measured value of the fiber diameter is 9.9 mu m.

Example 1

The high silica cloth used in the experiment has a surface size of 1000 square millimeters, and the photocatalyst solution has a mixture ratio (10 ml of absolute ethyl alcohol, 0.3g of anatase titanium dioxide and 0.15ml of polyethylene glycol)

The experimental steps are as follows: soaking high silica cloth in potassium hydroxide solution (the ratio of the potassium hydroxide solution is 30ml of absolute ethyl alcohol, 20ml of water and 0.1g of potassium hydroxide) for 40 min, washing the soaked high silica cloth with clear water, drying the high silica cloth in a drying box at the temperature of 150 ℃ for 10 min, soaking the high silica cloth in photocatalyst solution for 1 min, taking out the high silica cloth, naturally drying the high silica cloth, carrying out morphology analysis on the high silica cloth attached with photocatalyst, and carrying out TiO (titanium dioxide) analysis on the surface of fiber₂The coating was evident, with the side-like regions having an average thickness of 2.8 μm.

Example 2

The high silica cloth used in the experiment has a surface size of 1000 square millimeters, and the photocatalyst solution has a ratio (20 ml of absolute ethyl alcohol, 0.3g of anatase titanium dioxide and 0.15ml of polyethylene glycol)

The experimental steps are as follows: firstly, soaking high-silica raw cloth in a potassium hydroxide solution for 40 minutes, wherein the potassium hydroxide solution comprises 30ml of absolute ethyl alcohol, 20ml of water and 0.1g of potassium hydroxide, washing the high-silica raw cloth with clear water after soaking, then placing the high-silica raw cloth in a drying box, continuously drying the high-silica raw cloth at the temperature of 150 ℃ for 10 minutes, carrying out appearance analysis on the high-silica raw cloth, then soaking the high-silica raw cloth in a photocatalyst solution for 1 minute, taking out the high-silica raw cloth, naturally drying the high-silica raw cloth, carrying out appearance analysis on the high-silica cloth attached with a photocatalyst, and carrying out TiO (titanium dioxide) analysis on the surface of a fiber₂The coating was evident, with the side-like regions having an average thickness of 2.5 μm.

Example 3

The high silica cloth used in the experiment has a surface size of 1000 square millimeters, and the photocatalyst solution has a ratio (30 ml of absolute ethyl alcohol, 0.3g of anatase titanium dioxide and 0.15ml of polyethylene glycol)

The experimental steps are as follows: firstly, soaking high-silica raw cloth in a potassium hydroxide solution for 40 minutes, wherein the potassium hydroxide solution comprises 30ml of absolute ethyl alcohol, 20ml of water and 0.1g of potassium hydroxide, washing the high-silica raw cloth with clear water after soaking, then placing the high-silica raw cloth in a drying box, continuously drying the high-silica raw cloth at the temperature of 150 ℃ for 10 minutes, carrying out appearance analysis on the high-silica raw cloth, then soaking the high-silica raw cloth in a photocatalyst solution for 1 minute, taking out the high-silica raw cloth, naturally drying the high-silica raw cloth, carrying out appearance analysis on the high-silica cloth attached with a photocatalyst, and carrying out TiO (titanium dioxide) analysis on the surface of a fiber₂The coating was evident, with the average thickness of the side similar regions being 1.9 μm.

Example 4

The high silica cloth used in the experiment has a surface size of 1000 square millimeters, and the photocatalyst solution has a ratio (40 ml of absolute ethyl alcohol, 0.3g of anatase titanium dioxide and 0.15ml of polyethylene glycol)

The experimental steps are as follows: firstly, soaking high-silica raw cloth in a potassium hydroxide solution for 40 minutes, wherein the potassium hydroxide solution comprises 30ml of absolute ethyl alcohol, 20ml of water and 0.1g of potassium hydroxide, washing the high-silica raw cloth with clear water after soaking, then placing the high-silica raw cloth in a drying box, continuously drying the high-silica raw cloth at the temperature of 150 ℃ for 10 minutes, carrying out appearance analysis on the high-silica raw cloth, then soaking the high-silica raw cloth in a photocatalyst solution for 1 minute, taking out the high-silica raw cloth, naturally drying the high-silica raw cloth, carrying out appearance analysis on the high-silica cloth attached with a photocatalyst, and carrying out TiO (titanium dioxide) analysis on the surface of a fiber₂The coating was evident, with the average thickness of the side analogous region being 1.7 μm.

Example 5

The high silica cloth used in the experiment has a surface size of 1000 square millimeters, and the photocatalyst solution has a mixture ratio (30 ml of absolute ethyl alcohol, 1g of anatase titanium dioxide and 0.15ml of polyethylene glycol)

The experimental steps are as follows: firstly, soaking high-silica raw cloth in a potassium hydroxide solution for 40 minutes, wherein the potassium hydroxide solution comprises 30ml of absolute ethyl alcohol, 20ml of water and 0.1g of potassium hydroxide, washing the high-silica raw cloth with clear water after soaking, then placing the high-silica raw cloth in a drying box, continuously drying the high-silica raw cloth at the temperature of 150 ℃ for 10 minutes, carrying out appearance analysis on the high-silica raw cloth, then soaking the high-silica raw cloth in a photocatalyst solution for 1 minute, taking out the high-silica raw cloth, naturally drying the high-silica raw cloth, carrying out appearance analysis on the high-silica cloth attached with a photocatalyst, and carrying out TiO (titanium dioxide) analysis on the surface of a fiber₂The coating was evident, with the average thickness of the side analogous region being 1.5 μm.

Example 6

The high silica cloth used in the experiment has a surface size of 1000 square millimeters, and the photocatalyst solution has a mixture ratio (30 ml of absolute ethyl alcohol, 2g of anatase titanium dioxide and 0.15ml of polyethylene glycol)

The experimental steps are as follows: firstly, soaking high-silica raw cloth in a potassium hydroxide solution for 40 minutes, wherein the potassium hydroxide solution comprises 30ml of absolute ethyl alcohol, 20ml of water and 0.1g of potassium hydroxide, washing the high-silica raw cloth with clear water after soaking, then placing the high-silica raw cloth in a drying box, continuously drying the high-silica raw cloth at the temperature of 150 ℃ for 10 minutes, carrying out appearance analysis on the high-silica raw cloth, then soaking the high-silica raw cloth in a photocatalyst solution for 1 minute, taking out the high-silica raw cloth, naturally drying the high-silica raw cloth, carrying out appearance analysis on the high-silica cloth attached with a photocatalyst, and carrying out TiO (titanium dioxide) analysis on the surface of a fiber₂The coating was evident, with the average thickness of the side analogous region being 1.2 μm.

Example 7

The high silica cloth used in the experiment has a surface size of 1000 square millimeters, and the photocatalyst solution has a mixture ratio (30 ml of absolute ethyl alcohol, 3g of anatase titanium dioxide and 0.15ml of polyethylene glycol)

The experimental steps are as follows: soaking high silica cloth in potassium hydroxide solution (anhydrous alcohol 30ml, water 20ml and potassium hydroxide 0.1g) in the ratio of 40 min, washing with clear water, and bakingDrying at 150 deg.C for 10 min in a dry box, performing morphology analysis on the high silica cloth, soaking the high silica cloth in photocatalyst solution for 1 min, taking out, naturally drying, performing morphology analysis on the high silica cloth with photocatalyst, and performing TiO analysis on the fiber surface₂The coating was evident, with the average thickness of the similar areas on the sides being 1.05 μm.

The invention can effectively permeate the photocatalyst liquid into fine grains of an object or fibers of textile fabrics, thereby increasing the attachment area of the photocatalyst, improving the photocatalytic efficiency, simultaneously ensuring the size and the attachment uniformity of photocatalyst attachment particles, and avoiding losing the photocatalytic capability due to hardening.

The experiment can achieve ideal experiment results only by using absolute ethyl alcohol, if the hydrous ethyl alcohol is used, the photocatalyst powder and the hydrous ethyl alcohol are mixed to form a white colloidal mixture, and when the white colloidal mixture is coated on the surface of an object, particle accumulation and hardening can occur, so that the photocatalytic efficiency can be greatly reduced.

The technical solutions described above only represent the preferred technical solutions of the present invention, and some possible modifications to some parts of the technical solutions by those skilled in the art all represent the principles of the present invention, and fall within the protection scope of the present invention.