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Preparation method of multi-phase heterogeneous visible light catalysis functional fabric

A technology of functional fabrics and visible light, applied in chemical instruments and methods, chemical/physical processes, physical/chemical process catalysts, etc., can solve problems such as limiting the application range of TiO2, avoid the reduction of agglomeration efficiency, novel design, and simple preparation method Effect

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 most mature photocatalyst is nano-TiO 2 , but because of its wide band gap, it needs to be excited by ultraviolet light to have the ability to oxidize organic matter, which limits the ability of TiO 2 The scope of application in environmental purification

Method used

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  • Preparation method of multi-phase heterogeneous visible light catalysis functional fabric
  • Preparation method of multi-phase heterogeneous visible light catalysis functional fabric
  • Preparation method of multi-phase heterogeneous visible light catalysis functional fabric

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 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 6 mL of titanium tetraisopropoxide dropwise to 60 mL of deionized water, raise the temperature to 70°C, and stir at 300 rpm for 1 h to obtain solution A;

[0037] (3) Preparation of Solution B

[0038] Add 0.12g bismuth nitrate to 30mL nitric acid solution with a concentration of 2mol / L, add dropwise 0.05g JFC (fatty alcohol polyoxyethylene ether) and 0.55g disodium edetate, and stir at 300rpm for 30min to obtain a solution B;

[0039] (4) Preparation of Solution C

[0040] Add 0.03g of ammonium metavanadate into 20mL of deionized water, raise the temperature to 60°C, and stir at 300rpm for 25min until the solution is uniform and transparent to ob...

Embodiment 2

[0048] (1) Cotton fabric surface pretreatment

[0049] 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;

[0050] (2) Preparation of solution A

[0051] Add 5.5 mL of titanium tetraisopropoxide dropwise to 55 mL of deionized water, raise the temperature to 70°C, and stir at 250 rpm for 2 hours to obtain solution A;

[0052] (3) Preparation of Solution B

[0053] Add 0.1 g of bismuth nitrate to 20 mL of nitric acid solution with a concentration of 1.5 mol / L, add dropwise 0.05 g of Triton X-100 and 0.55 g of disodium edetate, and stir at 250 rpm for 30 min to obtain solution B;

[0054] (4) Preparation of Solution C

[0055] Add 0.025g of ammonium metavanadate to 20mL of deionized water, stir at 250rpm for 25min, until the solution is uniform and transparent, and obtain sol...

Embodiment 3

[0063] (1) Surface pretreatment of linen fabric

[0064] 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;

[0065] (2) Preparation of Solution A

[0066] Add 6 mL of titanium tetraisopropoxide dropwise to 65 mL of deionized water, raise the temperature to 65°C, and stir at 200 rpm for 1 h to obtain solution A;

[0067] (3) Preparation of Solution B

[0068] Add 0.12g of bismuth nitrate to 30mL of nitric acid solution with a concentration of 2mol / L, and dropwise add 0.05g of JFC (polyoxyethylene fatty alcohol ether) and 0.55g of disodium edetate, and stir at 200rpm for 30min to obtain a solution B;

[0069] (4) Preparation of Solution C

[0070] Add 0.03g of ammonium metavanadate to 30mL of deionized water, stir at 200rpm for 30min, until the solution is uniform and transparent, and obt...

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Abstract

The invention relates to a preparation method of a multi-phase heterogeneous visible light catalysis functional fabric. The preparation method comprises the following steps of: (1) washing a fabric; (2) dropwise adding titanium tetraisopropoxide to deionized water, and heating the solution to 60-80 DEG C to react for 1-2 hours to obtain a solution A; (3) adding bismuth nitrate into a nitric acid solution and dropwise adding a wetting agent and a metal chelator to the solution to obtain a solution B; (4) adding metavanadate to the deionized water, heating the solution to 50-60 DEG C, and stirring the solution to obtain a solution C; (5) adding the solution B and the solution C to the solution A in sequence for reacting for 2-3 hours, and adjusting the pH of the solution mixture to alkalinity to obtain a heterogeneous photocatalyst finishing solution D; and (6) dipping the washed fabric to the finishing solution D, heating the finishing solution to 70-90 DEG C for reacting for 6-8 hours, and drying the fabric to obtain the multi-phase heterogeneous visible light catalysis functional fabric. The preparation method is simple and free of secondary pollution; and the functional fabric can be used for effectively purifying dyeing wastewater and air pollution under visible light irradiation.

Description

technical field [0001] The invention belongs to the field of catalyst preparation, in particular to a method for preparing a heterogeneous visible light catalytic functional fabric. 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 to solve environm...

Claims

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Application Information

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IPC IPC(8): D06M11/46D06M11/47B01J23/22D06M101/12D06M101/06
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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