Low Vaporization Enthalpy Hydrogels for Solar Water Purification

REN Jia-xin; CHEN Ling; GONG Jiang; QU Jin-ping; NIU Ran

doi:10.14028/j.cnki.1003-3726.2023.11.003

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Low Vaporization Enthalpy Hydrogels for Solar Water Purification

Special Issue: Polymer Research at Huazhong University of Science and Technology | 更新时间：2023-10-12

- Low Vaporization Enthalpy Hydrogels for Solar Water Purification
- Polymer Bulletin Vol. 36, Issue 11, Pages: 1406-1419(2023)
- 作者机构：
  
  1.能量转换与存储教育部重点实验室，生物医用与防护材料湖北省工程研究中心，华中科技大学化学与化工学院，武汉　430074
  2.广东省高分子先进制造技术及装备重点实验室，汽车与机械工程学院（华南理工大学），广州　510641
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2023.11.003
  CLC：
- Published：20 November 2023，
  
  Received：29 May 2023，
  
  Revised：20 June 2023，
扫描看全文
REN Jia-xin, CHEN Ling, GONG Jiang, QU Jin-ping, NIU Ran. Low Vaporization Enthalpy Hydrogels for Solar Water Purification. [J]. Polymer Bulletin 36(11):1406-1419(2023)
DOI：

REN Jia-xin, CHEN Ling, GONG Jiang, QU Jin-ping, NIU Ran. Low Vaporization Enthalpy Hydrogels for Solar Water Purification. [J]. Polymer Bulletin 36(11):1406-1419(2023) DOI： 10.14028/j.cnki.1003-3726.2023.11.003.

摘要

日益严重的水资源短缺和水体污染引发了人们对先进水净化技术的研究兴趣。太阳能驱动的界面蒸发利用清洁的太阳能来分离水和杂质，被认为是解决缺水和污染最环保、经济的技术。低蒸发焓水凝胶基光热转换材料由于其高蒸发速率、可加工性、可控性和多功能性，成为最有潜力的太阳能蒸发器材料。首先，本综述回顾了水凝胶的关键概念，这些概念证明了其在太阳能驱动的界面蒸发系统中的优势，如快速水传输和低蒸发焓；其次，总结了水凝胶的制备方法包括引入的光热材料以及水凝胶的设计策略，以提高水凝胶的整体性能。水凝胶蒸发器的多种功能在抗盐、光降解、杀菌和发电等方面得到了扩展。基于水凝胶的上述优势，本综述进一步提出了适用于实际使用环境的水凝胶蒸发器的设计概念和策略。

Abstract

Increasing concerns over water scarcity and pollution leads to growing research interest in advanced water purification technologies. Solar-driven interfacial evaporation

which is driven by clean solar energy for separation of water and impurities

has been considered the most eco-friendly and cost-effective technology to solve water shortage and pollution. Hydrogel-based materials with low evaporation enthalpy outperform most of other potential materials for photothermal conversion due to their breakthrough evaporation rates

processability

controllability and versatility. In this review

we first review the key concepts of hydrogels that show benefits in solar-driven interfacial evaporation systems

including water transport and low evaporation enthalpy. Secondly

we present the fabrication methods of hydrogel evaporators

the incorporated light absorbers

as well as the design strategies of micro/nanostructures for overall hydrogel performance enhancement. Finally

some of the multiple functions of hydrogel evaporators are introduced

such as salt-blocking

photo-degradation

sterilization

and electricity generation. Considering the benefits of the above hydrogel mechanisms and technologies

we further propose design concepts for hydrogel evaporators required in practical applications.

关键词

太阳能界面蒸发水凝胶低蒸发焓设计原则

Keywords

Solar-driven interfacial evaporationHydrogelLow vaporizationDesign principle

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