Preparation method of hydrogel with adsorption and catalysis functions

Abstract

The invention discloses a preparation method of a hydrogel with adsorption and catalysis functions. The preparation method comprises the following steps of: preparing the hydrogel, and loading at least one noble metal to a hydrogel carrier; drying the obtained loaded type hydrogel. The preparation process of a loaded type hydrogel material is simple, moderate in condition and suitable for industrial production; an obtained product can be used for effectively degrading the organic dyes which are contained in a water body and include anionic and cationic dyes and still has better catalytic property after being recycled for multiple times.

Description

technical field

[0001] The invention relates to the field of environmental protection water treatment, in particular, the invention relates to a method for preparing a hydrogel capable of degrading organic dyes and having dual functions of adsorption and catalysis. Background technique

[0002] Environmental pollution control and treatment is a major issue that human beings face and need to be solved urgently. my country is the largest country in the textile industry, and printing and dyeing is the core process of the textile industry. The wastewater discharged by printing and dyeing accounts for more than 80% of the textile industry's wastewater discharge, and accounts for about 35% of the entire industrial wastewater discharge. The printing and dyeing industry is a major player in the discharge of industrial wastewater, and the resulting ecological damage and economic losses are immeasurable.

[0003] Printing and dyeing wastewater has high chroma, strong toxicity, large...