Preparation method of bifunctional hydrogel with adsorption catalysis

Abstract

The invention belongs to the field of environmental protection water treatment, and discloses a preparation method of a bifunctional hydrogel with adsorption catalysis, which prepares polybutyl acrylate emulsion particles. Adding sodium dodecyl sulfate and NaCl into deionized water, and uniformly stirring at normal temperature to obtain transparent micelle aqueous solution; adding a small amount of hydrophobic monomers HM and PBA LPS into the aqueous solution, and uniformly stirring; adding a certain amount of acrylamide, potassium persulfate and Tmeda, and stirring uniformly; Reacting the obtained solution in an oven to obtain hydrogel; Immersed in the prepared aqueous solution of noble metal ions, the hydrogel is separated, reduced by a reducing agent for 1 to 10 hours, and dried to obtain the final product. According to the invention, polybutyl acrylate emulsion particles are introduced into the hydrogel, so that the toughness of the hydrogel is increased. The preparation method issimple and has high-efficiency degradation capability for organic dyes in water.

Description

technical field [0001] The invention belongs to the field of environmental protection water treatment, and in particular relates to a preparation method of hydrogel with adsorption and catalysis dual functions. Background technique [0002] Currently, the closest prior art: [0003] Water pollution is a huge environmental problem, as is the large amount of dye wastewater discharged by the paper, plastic, cosmetic and textile industries, which are non-biodegradable, toxic and carcinogenic. Traditional treatment methods, such as coagulation, solvent extraction and biological treatment, have certain drawbacks. Adsorption is considered to be an inexpensive and technically simple method. Currently, many different kinds of adsorbents have been developed, including activated carbons, resins, and hydrogels. Among them, the hydrogel adsorbent is a novel three-dimensional network structure material with a large number of functional groups, such as hydroxyl and amide groups, and the...

AI Technical Summary

Problems solved by technology

[0007] In the prior art, the polybutyl acrylate emulsion particles are not introduced into the hydrogel, and the toughness of the hydrogel is not increased

Moreover, the preparation method of the present invention in the prior art is complicated, and the degradation ability to organic dyes in the water body is poor

The control effect of the preparation process parameters in the prior art is poor, resulting in poor product performance indicators and low dye adsorption effect

Images