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

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...

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

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