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Visible-light-driven photocatalyst self-cleaning antibacterial fabric, and preparation and application thereof

A technology of antibacterial fabrics and catalysts, applied in textiles and papermaking, chemical instruments and methods, gas treatment, etc., can solve the problems of easy compounding, low solar energy utilization rate, and low quantum utilization efficiency, and achieve firm combination and low equipment performance requirements , good self-cleaning effect

Active Publication Date: 2016-12-14
DONGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practice, there are problems such as wide band gap, low utilization rate of solar energy, easy recombination of photogenerated electrons and hole pairs, and low quantum utilization efficiency. Therefore, most of the current focus is on how to broaden its catalytic In terms of research scope and improvement of catalytic efficiency, especially TiO with visible light response obtained by compounding or doping 2 Composite catalysts have become a research hotspot at home and abroad

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A certain amount of TiO 2 , urea and an appropriate amount of deionized water are mixed evenly, dried at 60°C for 4 hours, ground into powder, placed in a muffle furnace at a rate of 15°C / min to 450°C for 1 hour, and naturally cooled to form a substance A;

[0031] where TiO 2 The mass ratio to urea is 1:1.5;

[0032] Add substance A to the coating agent and coat it directly on the fabric, the coating amount is 50-150g / m 2 , drying at 110°C for 5 minutes;

[0033] The main component of the base fabric is polyester fiber, the coating agent is a mixture of water, water-soluble polyacrylate, sodium hexametaphosphate, silane coupling agent and surfactant, water, water-soluble polyacrylate, sodium hexametaphosphate , The mass ratio of the silane coupling agent is 8:2:5:1, and the surfactant is sodium dodecylpropanesulfonate;

[0034] At room temperature, the fabric was soaked in a solution containing substance A, CuSO 4 1. In the mixture of water-soluble chitosan and w...

Embodiment 2

[0040] A certain amount of TiO2 After mixing evenly with cyanamide, dry it at 80°C, grind it into a powder, place it in a muffle furnace at a rate of 10°C / min to 550°C and keep it warm for 2 hours, then cool down naturally to form substance A;

[0041] where TiO 2 The mass ratio with cyanamide is 1:1;

[0042] Add substance A to the coating agent and directly coat it on the fabric, the coating amount is 50~150g / m 2 , drying at 115°C for 3 minutes;

[0043] The main component of the base fabric is polypropylene fiber, the coating agent is a mixture of water, water-soluble polyacrylate, sodium hexametaphosphate, silane coupling agent and surfactant, water, water-soluble polyacrylate, sodium hexametaphosphate , The mass ratio of the silane coupling agent is 6:1:7:1, and the surfactant is sodium dodecylpropanesulfonate;

[0044] At room temperature, the fabric was soaked in a solution containing substance A, CuSO 4 1. In the mixed solution of water-soluble chitosan and water, ...

Embodiment 3

[0050] A certain amount of TiO 2 After mixing evenly with cyanamide, dry it at 80°C, grind it into a powder, place it in a muffle furnace at a rate of 10°C / min to 550°C and keep it warm for 2 hours, then cool down naturally to form substance A;

[0051] where TiO 2 The mass ratio with cyanamide is 1:1.5;

[0052] Add substance A to the coating agent and coat it directly on the fabric, the coating amount is 50-150g / m 2 , Dry at 115°C for 3 minutes.

[0053] The main component of the base fabric is polyacrylonitrile fiber, the coating agent is a mixture of water, water-soluble polyacrylate, sodium hexametaphosphate, silane coupling agent and surfactant, water, water-soluble polyacrylate, hexametaphosphoric acid The mass ratio of sodium and silane coupling agent is 9:1:1:10, and the surfactant is sodium dodecylpropanesulfonate;

[0054] At room temperature, the fabric was soaked in a solution containing substance A, CuSO 4 1. In the mixture of water-soluble chitosan and wate...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention relates to a visible-light-driven photocatalyst self-cleaning antibacterial fabric, and preparation and application thereof. A composite catalysis particle membrane composed of TiO2, C3N4 and Cu2O is formed on the surface of a fabric. The visible-light-driven photocatalyst self-cleaning antibacterial fabric is prepared through the following steps: under the condition of room temperature, mixing TiO2, a nitrogen-containing compound and distilled water and then successively subjecting the obtained mixture to ultrasonic concussion, drying, grinding and calcining so as to obtain a substance A; adding the substance A into a coating agent, carrying out uniform dispersion, then directly coating the surface of the fabric with the coating agent and carrying out drying; and dipping the fabric in mixed liquor at room temperature, adjusting a pH value, carrying out dipping again, adding a glucose solution at 70 to 90 DEG C, carrying out treatment for 30 to 60 min, taking the fabric out and carrying out air drying at room temperature. According to the invention, through compounding and mixing of catalysts with photocatalysis performance at different wavelengths, a visible-light-driven photocatalyst with a wide catalysis wavelength scope and high catalysis efficiency is prepared.

Description

technical field [0001] The invention belongs to the field of photocatalyst and its preparation and application, in particular to a visible light catalyst self-cleaning antibacterial fabric and its preparation and application. Background technique [0002] Interior decoration materials and furniture with poor environmental protection performance will volatilize many harmful compounds such as xylene. The longer these substances are in contact with the human body, the greater the invisible harm. With the improvement of people's living standards, interior fabrics are used more and more indoors. Through the post-finishing process, the fabric can better degrade harmful gases, which can significantly improve people's living environment. [0003] Nano TiO 2 The photocatalytic effect to purify highly volatile ammonia, the use of nanofiber materials to remove formaldehyde and other methods have been reported. Due to nano TiO 2 It has the advantages of wide application range of pho...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): D06M11/46D06M11/74D06M11/42D06M15/263D06M15/03B01D53/86D06M101/32D06M101/20D06M101/28
CPCB01D53/86B01D2258/06D06M11/42D06M11/46D06M11/74D06M15/03D06M15/263D06M2101/20D06M2101/28D06M2101/32
Inventor 赵亚萍杨波纪俊超蔡再生裴小川叶敏伟
Owner DONGHUA UNIV
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