A kind of preparation method of sulfamethoxazole modified aluminum silicate fiber adsorbent

Abstract

The invention discloses a method for preparing sulfamethoxazole modified aluminum silicate fiber adsorbents. The method is characterized by comprising steps of carrying out surface chlorination on aluminum silicate fibers by 3-gamma-chloropropyl trimethoxysilane to obtain chlorinated aluminum silicate fibers; adding, by weight, 78-82% of diluted hydrochloric acid and 2-5% of sulfamethoxazole intoa reactor, stirring and dissolving the diluted hydrochloric acid and the sulfamethoxazole, adding, by weight, 14-18% of chlorinated aluminum silicate fibers and 0.2-1.0% of zinc sheets into the reactor, heating the reactor until the temperature of the reactor reaches 40+ / -2 DEG C, keeping the temperature of the reactor constant, carrying out stirring reaction for 3 h, separating solid from liquidafter the reaction is completely carried out and carrying out washing by the aid of deionized water, and carrying out drying to obtain the sulfamethoxazole modified aluminum silicate fiber adsorbents.The aluminum silicate fibers are used as frameworks of the sulfamethoxazole modified aluminum silicate fiber adsorbents. The sum of the percentages of components added into the reactor is one hundredpercent. The method has the advantages that perfluorooctanoic acid can be selectively adsorbed by the sulfamethoxazole modified aluminum silicate fiber adsorbents which are adsorption materials, andthe adsorption materials are excellent in mechanical performance, good in chemical stability, high in adsorption rate and easy to elute and have regeneration capacity.

Description

technical field

[0001] The invention relates to a preparation method and application technology of an adsorption material, in particular to a preparation method and application of a sulfamethoxazole-modified aluminum silicate fiber adsorbent, and belongs to the technical field of separation material application. Background technique

[0002] Perfluorooctanoic acid (PFOA), or "C8", is a synthetic chemical often used as an integral processing aid in the production of high-performance fluoropolymers. These high-performance fluoropolymers can be widely used in aerospace technology, transportation, electronics industry, and household products such as kitchen utensils (such as non-stick pans). Since the early 1980s, the application of this non-volatile perfluorinated organic compound in industrial and civil fields has grown rapidly. The extensive use of this type of product makes it enter various environmental media such as soil, water, and the atmosphere around the world in vari...