Adsorbing material with cross-linked network and preparation method thereof

By constructing a three-dimensional cross-linked framework and silica gel network structure, the problem of pore blockage caused by traditional binders in porous adsorbent materials was solved, achieving high-efficiency adsorption and biocompatibility of the adsorbent material, and optimizing adsorption performance and mechanical strength.

CN121847086APending Publication Date: 2026-04-14CHINA SOUTHWEST ARCHITECTURAL DESIGN & RES INST CORP LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-06
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

When existing porous adsorption materials use traditional binders to enhance mechanical strength, the pore structure becomes blocked, resulting in a significant decrease in adsorption performance. Furthermore, the lack of biocompatibility design makes it difficult to effectively apply adsorption-biological synergistic purification technology.

Method used

By constructing a three-dimensional cross-linked framework and silica gel network structure, and combining PVA, sodium alginate and Ca2+ ions to form a hierarchical porous system, a through-pore macroporous-mesoporous-microporous structure is formed by utilizing acid-catalyzed polycondensation and porogen removal mechanism, thereby optimizing mechanical strength and adsorption performance.

Benefits of technology

It significantly improves adsorption capacity and mass transfer kinetics, ensures high dispersibility and biocompatibility of adsorption materials, and realizes long-term degradation function of adsorption-biological synergistic purification.

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Abstract

The invention discloses an adsorption material with a cross-linked network and a preparation method thereof, and relates to the technical field of special medicament materials for environmental pollution treatment, the adsorption material comprises a three-dimensional cross-linked skeleton and a silicic acid gel network structure, the three-dimensional cross-linked skeleton is used for supporting the silicic acid gel network structure, and the silicic acid gel network structure is used for supporting the three-dimensional cross-linked skeleton. An adsorption aggregate is arranged on the silicic acid gel network structure. According to the invention, through spatial coupling of a three-dimensional cross-linked skeleton and a silicic acid gel network structure, an integrated adsorption system with pore channel and dual network characteristics is constructed, and the fixation of a silicic acid gel network on aggregate and the spatial confinement of the three-dimensional skeleton form synergy, so that high dispersibility and loading capacity of adsorption components are ensured, and the adsorption efficiency is improved. And agglomeration and loss of active components are avoided, so that the purpose of improving the mechanical property and the adsorption capacity of the material is achieved.
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