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Preparation method of efficient and visible-light catalytic function textile

A functional fabric and visible light technology, which is applied in the direction of plant fibers, animal fibers, textiles and papermaking, can solve the problems of wide band gap and fast electron-hole recombination, achieve high hydrophilicity, avoid the reduction of agglomeration efficiency, The effect of improving response efficiency

Inactive Publication Date: 2013-07-10
DONGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the application bottleneck of photocatalysts lies in the wide band gap and fast electron-hole recombination speed.

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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  • Preparation method of efficient and visible-light catalytic function textile
  • Preparation method of efficient and visible-light catalytic function textile
  • Preparation method of efficient and visible-light catalytic function textile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (1) Wool fabric surface pretreatment

[0034] Ultrasonic cleaning wool fabric (1g) with acetone for 30min, drying at 30°C for 3h, then treating it in high-efficiency detergent Kieralon OL (Basf) at 40°C for 25min, drying at 60°C for 10min, to obtain pretreated woolen fabric;

[0035] (2) Preparation of solution A

[0036] Add 5g of bismuth nitrate and 2.1g of citric acid into 100ml of nitric acid solution (2mol / L), stir until the solution is uniform and transparent, add dropwise a mixed solution of 1.2g of ammonium metavanadate and 1g of polyethylene glycol 2000 (PEG), and control The dropping rate was 3mL / min, and stirred at a speed of 300rpm for 2h to obtain solution A;

[0037] (3) Preparation of Suspension B

[0038] Adjust the pH of solution A to 8.5 with sodium hydroxide, raise the temperature to 90°C, and stir at a speed of 300rpm for 3h to obtain suspension B;

[0039] (4) Preparation of bismuth vanadate

[0040] Vacuum filter the suspension B, rinse the fil...

Embodiment 2

[0050](1) Cotton fabric surface pretreatment

[0051] Clean the cotton fabric (1g) ultrasonically with ethanol for 40min, dry at 30°C for 3h, then treat it in the high-efficiency cleaning agent Span-one (Desang Chemical) solution at 45°C for 25min, and dry at 65°C for 5min to obtain pretreated cotton fabric;

[0052] (2) Preparation of Solution A

[0053] Add 7.5g of bismuth nitrate and 3g of citric acid into 100ml of nitric acid solution (4mol / L), stir until the solution is uniform and transparent, add dropwise a mixed solution of 1.8g of ammonium metavanadate and 1g of polyethylene glycol 2000 (PEG), and control The dropping rate was 3mL / min, and stirred at a speed of 300rpm for 2h to obtain solution A;

[0054] (3) Preparation of Suspension B

[0055] Adjust the pH of solution A to 8 with sodium hydroxide, raise the temperature to 80°C, and stir at 300rpm for 3h to obtain suspension B;

[0056] (4) Preparation of bismuth vanadate

[0057] Vacuum filter the suspension B,...

Embodiment 3

[0067] (1) Surface pretreatment of linen fabric

[0068] Ultrasonic cleaning of linen fabric (1g) with acetone for 60min, drying at 30°C for 3h, then treating in high-efficiency detergent LS (Demei Chemical) solution at 40°C for 25min, drying at 60°C for 10min, to obtain pretreated linen fabric;

[0069] (2) Preparation of Solution A

[0070] Add 5g of bismuth nitrate and 2.1g of citric acid into 80ml of nitric acid solution (3mol / L), stir until the solution is uniform and transparent, add dropwise a mixed solution of 1.2g of ammonium metavanadate and 0.5g of polyethylene glycol 2000 (PEG), Control the dropping rate to 2mL / min, stir at a speed of 300rpm for 2h to obtain solution A;

[0071] (3) Preparation of Suspension B

[0072] Adjust the pH of solution A to 8 with sodium hydroxide, raise the temperature to 90°C, and stir at a speed of 300rpm for 2h to obtain suspension B;

[0073] (4) Preparation of bismuth vanadate

[0074] Vacuum filter the suspension B, rinse the fi...

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Abstract

The invention relates to a preparation method of an efficient and visible-light catalytic function textile. The preparation method comprises the following steps of: washing a textile; adding bismuth nitrate, meta-vanadate, a metal chelating agent and PEG (Polyethylene Glycol) into a nitric acid solution and reacting for 2-3 hours to obtain a solution A; adjusting the pH (Potential of Hydrogen) of the solution A, raising the temperature of the solution A to be at 90-100 DEG C, and then reacting for 2-3 hours to obtain a suspension solution B; filtering the suspension solution B, and drying and calcining to obtain BiVO4 micro-nano particles; adding the BiVO4 micro-nano particles into a silver nitrate solution and performing ultrasound treating for 20-30min; agitating for 1-2 hours to obtain a solution C; dripping a vulcanized salt solution into a solution D and reacting for 1-2 hours to obtain an AgS / BiVO4 precursor finishing solution D; and immersing the pre-washed textile into the finishing solution D; reacting at 70-90 DEG C for 4-6 hours; and drying to obtain the efficient and visible-light catalytic function textile. The preparation method disclosed by the invention is simple and has no secondary pollution; and the obtained function textile can effectively purify printing and dyeing wastewater and air pollution under the illumination of visible light.

Description

technical field [0001] The invention belongs to the field of preparation of functional fabrics, in particular to a preparation method of highly efficient visible light catalysis functional fabrics. Background technique [0002] With the rapid development of society and economy and the rapid expansion of population, human's demand for energy has increased significantly, and global environmental problems have become increasingly prominent. Therefore, the utilization and development of solar energy is particularly important, and semiconductor photocatalysis technology, which is an important part of it, is expected to become an effective way to solve environmental and energy problems. The photo-splitting water technology that converts solar energy into clean hydrogen energy will completely solve the crisis caused by the depletion of fossil energy and the greenhouse effect, and photocatalytic degradation to eliminate toxic organic pollutants will become a cheap and feasible way t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/53D06M11/47D06M101/12D06M101/06
Inventor 何瑾馨王振华张韡刘保江瞿建刚王晓亮陈若阳
Owner DONGHUA UNIV
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