Ionic liquid crosslinked chitosan modified zeolite adsorbent material, preparation method and application thereof

A cross-linked chitosan and ionic liquid technology, applied in chemical instruments and methods, adsorption water/sewage treatment, other chemical processes, etc., to achieve good resource recycling value and application prospects, increase active sites, and reduce costs Effect
CN106861656AInactive Publication Date: 2017-06-20SHANDONG JIANZHU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHANDONG JIANZHU UNIV
Publication Date
2017-06-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to an ionic liquid crosslinked chitosan modified zeolite adsorption material, a preparation method and application thereof. The preparation method includes: mixing and crosslinking chitosan and ionic liquid, then adding the crosslinked mixed liquid into liquid polyethylene glycol and epichlorohydrin to conduct secondary crosslinking, mixing the mixed liquid obtained by secondary crosslinking with zeolite powder, then adding the mixture dropwise into a sodium hydroxide solution to form sodium hydroxide solution-zeolite microspheres, and subjecting the microspheres to saponification, thus obtaining the adsorbent material. The preparation method provided by the invention has the advantages of simple process conditions, easy operation and low cost, the prepared adsorbent material has significant treatment effect on compound heavy metal ion wastewater, especially on anion and cation containing compound heavy metal ion wastewater.
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Description

technical field

[0001] The invention relates to an adsorption material for composite heavy metal ions, in particular to a zeolite adsorption material modified by ionic liquid cross-linked chitosan, which belongs to the technical field of environmental protection and composite materials. Background technique

[0002] In recent years, the harm of heavy metal ions to humans has attracted widespread attention. Heavy metal ions are not only biologically toxic and refractory, but also migrate and transform with organisms, accumulate in organisms, and cause irreversible damage to organisms. In order to reduce the impact of heavy metal pollution on the environment and human health, some means must be used to remove heavy metal ions in water. In addition to chemical precipitation, membrane treatment, and advanced oxidation, adsorption, as a relatively effective method, is often used in the removal of heavy metal ions.

[0003] Polymer adsorption materials can selectively adsorb spe...

Claims

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