一种稀土基木质太阳能水净化器及其制备方法和应用

By combining modified wood and rare earth boride nanocrystals, the narrow spectrum and stability issues of plasma materials in seawater desalination have been solved, achieving efficient photothermal conversion and multifunctional water purification effects.

CN120717546BActive Publication Date: 2026-07-17NANKAI UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NANKAI UNIV
Filing Date
2025-06-26
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing plasma metal materials for seawater desalination suffer from narrow absorption spectra, poor chemical and thermal stability, and high costs. Furthermore, traditional photothermal material fixing methods result in low evaporation efficiency and easy scaling.

Method used

The rare earth-based wood-based solar water purifier uses modified natural wood as a base and rare earth boride nanocrystals as a light absorption layer. It utilizes the local surface plasmon resonance characteristics to achieve full-spectrum light absorption and optimizes water transport and heat management through a three-dimensional porous structure.

Benefits of technology

It achieves efficient light absorption and photothermal conversion across the entire spectrum, improves water evaporation efficiency, reduces heat loss, and possesses long-term stability and low cost. It also features multi-functional integration of seawater desalination, wastewater purification, and disinfection.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明公开了一种稀土基木质太阳能水净化器的制备方法及其应用,所述的稀土材料为稀土硼化物纳米晶;其制备方法包括如下步骤:S1:选取天然木材为原料,利用次氯酸钠溶液对其进行脱木质素处理,得到改性木材A;S2:再利用氢氧化钠溶液去除半纤维素,得到改性木材B;S3:冷冻定型,再冷冻干燥,得到木质气凝胶C;S4:称取稀土硼化物纳米晶分散在溶剂中,超声,得到分散液;S5:将木质气凝胶C的上表面浸入分散液中,取出,冷冻定型,再冷冻干燥,得到稀土基木质太阳能水净化器。本发明所制备的稀土基木质太阳能水净化器展现出卓越的光吸收性能、高效的光热转化效率以及优异的光催化性能。同时,该水净化器独特的水传输通道结构,使其成为一种极具潜力的太阳能清洁水生产技术平台。
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