Floatable hydrogel photo-thermal conversion material as well as preparation method and application thereof

By preparing a floating hydrogel photothermal conversion material composed of Ti3C2Tx, sodium alginate and soluble metal salt, the problem of easy contamination of materials and poor long-term use stability in the prior art is solved, and efficient seawater desalination and water purification are achieved, with excellent anti-pollution and mechanical properties.

CN119708540AActive Publication Date: 2025-03-28TIANJIN UNIV
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Patent Information

Application Number
CN202411870267.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-18
Publication Date
2025-03-28
Estimated Expiration
2044-12-18

AI Technical Summary

Technical Problem

The existing solar interface evaporation technology is susceptible to pollutants such as organic pollutants, heavy metals and oil during seawater desalination, resulting in materials being easily contaminated, poor long-term use stability, and secondary pollution problems.

Method used

A floating hydrogel photothermal conversion material is used, which consists of Ti3C2Tx dispersion, sodium alginate and soluble metal salt solution. It forms a 3D mesh structure through drying and crosslinking reaction, improving anti-pollution performance and water purification ability.

Benefits of technology

It achieves efficient photothermal conversion and water purification, has excellent anti-pollution performance and mechanical properties, and can be carried out in a long-term and stable manner during the actual seawater desalination process to avoid secondary pollution.

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Abstract

The invention provides a floatable hydrogel photo-thermal conversion material as well as a preparation method and application thereof, and belongs to the technical field of sunlight utilization and chemical separation. The invention provides a Ti < 3 > C < 2 > T < x > dispersion liquid; the Ti3C2Tx dispersion liquid, sodium alginate and water are mixed, and a mixed solution is obtained; the mixed solution is dried, and a 3D Ti < 3 > C < 2 > T < x > / sodium alginate matrix is obtained; the 3D Ti < 3 > C < 2 > T < x > / sodium alginate matrix is soaked in a soluble metal salt solution, and the hydrogel photo-thermal conversion material is obtained. The preparation method is simple, economical and environment-friendly, the obtained hydrogel photo-thermal conversion material presents a porous network structure and can be driven by solar energy to carry out seawater desalination after floating on the surface of seawater, excellent photo-thermal conversion efficiency, evaporation rate, desalination and salt resistance and pollution resistance are achieved in seawater desalination, and the hydrogel photo-thermal conversion material has good application prospects. And organic pollutants and heavy metal cations can be removed.
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