Preparation method for fiber-based activate core-shell micro-nano structure environment purifying material

A technology of micro-nano structure and environmental purification, applied in fiber treatment, light water/sewage treatment, textile and papermaking, etc., to achieve the effect of wide source, easy industrial production and convenient use

Inactive Publication Date: 2013-02-06
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method for preparing a fiber-based activated core-shell micro-nano structure environmental purification material. The method is simple, low in cost, has no secondary pollution, and is easy for industrial production. The purification effect of pollutants is good, which can effectively improve the loading and durability of Bi-based semiconductors on fabrics, and prevent the damage of Bi-based semiconductor photocatalysts to fiber fabrics

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 for fiber-based activate core-shell micro-nano structure environment purifying material
  • Preparation method for fiber-based activate core-shell micro-nano structure environment purifying material
  • Preparation method for fiber-based activate core-shell micro-nano structure environment purifying material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] (1) Wool fabric surface pretreatment

[0043]Ultrasonic cleaning of wool fabric (1g) with acetone for 30min, drying at 20°C for 10h, then treating in high-efficiency detergent Kieralon OL (Basf) solution at 40°C for 15min, drying at 80°C for 30min;

[0044] (2) Preparation of solution A

[0045] Under nitrogen atmosphere, take 0.005mol bismuth nitrate and 0.010mol edetate disodium into 50ml nitric acid solution (0.5mol / L) respectively, and drop Tween 80, a wetting agent 2% relative to the weight of the fabric, at 200rpm Stir for 30min, add 4gNaHCO 3 ;

[0046] Preparation of Solution B

[0047] Under a nitrogen atmosphere, take 0.005mol of sodium metavanadate and add it to 50ml of deionized water, stir at 200rpm for 5min, and add 10ml of sodium hydroxide solution (1.5mol / L) dropwise during the stirring process to obtain a clear solution;

[0048] (3) Preparation of unactivated photocatalyst

[0049] Add the above solution B to the above solution A dropwise, control...

Embodiment 2

[0059] (1) Cotton fabric surface pretreatment

[0060] Ultrasonic cleaning of cotton fabric (1g) with ethanol for 45min, drying at 30°C for 10h, then treating in the high-efficiency cleaning agent Span-one (Desang Chemical) solution at 45°C for 20min, drying at 80°C for 25min;

[0061] (2) Preparation of solution A

[0062] Under a nitrogen atmosphere, take 0.006mol of bismuth nitrate and 0.015mol of disodium edetate and add them to 50ml of nitric acid solution (1.0mol / L) respectively, and add 3% of the wetting agent Triton X-100 relative to the weight of the fabric dropwise, Stir at 200rpm for 30min, add 3g K 2 CO 3 ;

[0063] Preparation of Solution B

[0064] Under a nitrogen atmosphere, take 0.006mol of sodium metavanadate and add it to 50ml of deionized water, stir at 200rpm for 5min, and add 10ml of sodium hydroxide solution (0.5mol / L) dropwise during the stirring process to obtain a clear solution;

[0065] (3) Preparation of unactivated photocatalyst

[0066] Add...

Embodiment 3

[0076] (1) Surface pretreatment of linen fabric

[0077] Ultrasonic cleaning of linen fabric (1g) with acetone for 60min, drying at 30°C for 10h, then treating in high-efficiency detergent LS (Demei Chemical) solution at 45°C for 20min, drying at 80°C for 25min;

[0078] (2) Preparation of solution A

[0079] Under nitrogen atmosphere, take 0.006mol bismuth nitrate and 0.018mol edetate disodium into 50ml nitric acid solution (2.0mol / L) respectively, and add 5% wetting agent JFC (fatty alcohol poly Oxyethylene ether), stirred at 200rpm for 30min, added 4g Na 2 CO 3 ;

[0080] Preparation of Solution B

[0081] Under a nitrogen atmosphere, take 0.006mol of sodium metavanadate and add it to 50ml of deionized water, stir at 200rpm for 5min, and add 10ml of sodium hydroxide solution (1mol / L) dropwise during the stirring process to obtain a clear solution;

[0082] (3) Preparation of unactivated photocatalyst

[0083] Add the above solution B to the above solution A dropwise, ...

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 preparation method for a fiber-based activate core-shell micro-nano structure environment purifying material. The method comprises the following steps of: (1) cleaning a fabric; (2) adding bismuth nitrate and ethylenediaminetetraacetic acid in a salpeter solution, and dropwises adding a wetting agent and an alkaline agent so as to obtain a solution A; adding sodium metavanadate in deionized water, and adding a sodium hydroxide solution, so as to obtain a solution B; (3) adding the solution B in the solution A, so as to obtain a photocatalyst non-activate body; (4) activating the photocatalyst non-activate body, so as to obtain a photocatalyst nano activate body solution LOCL; (5) adding a deionized water solution containing a cosolvent, a penetrant and a silane precursor into the photocatalyst nano activate body solution LOCL so as to obtain an activate shell photocatalysis finishing liquid; and (6) soaking the treated fabric in the activate shell photocatalysis finishing liquid for reaction so as to obtain the fiber-based activate core-shell micro-nano structure environment purifying material. The preparation method is simple, and the secondary pollution is avoided; and the purifying material obtained by using the method can be used for effectively purifying printing and dyeing wastewater, and polluted air, has no harm on fiber basically.

Description

technical field [0001] The invention belongs to the field of preparation of photocatalytic environmental purification functional fabrics, in particular to a preparation method of a fiber-based activated core-shell micro-nano structure environmental purification material. Background technique [0002] The water environment is an important part of the natural environment. On the earth's surface, the water body area accounts for about 71% of the earth's surface area, of which the available terrestrial water only accounts for 2.72% of the total water volume. It has been predicted that after the energy crisis, the biggest natural crisis that mankind will face is the water resource crisis. The deterioration of water environment and the shortage of water resources have become the focus of attention of all countries in the world. As an important resource for human survival, the governance of water environment has become an important issue to be solved urgently. [0003] As an impo...

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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Patent Type & Authority Applications(China)
IPC IPC(8): D06M23/00D06M11/47C02F1/30
Inventor 何瑾馨王振华刘保江瞿建刚张韡
Owner DONGHUA UNIV
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