Engineering hydrogels towards next-generation multi-functional interfacial solar evaporators beyond seawater desalination

IF 13.3 1区工程技术 Q1 ENGINEERING, CHEMICAL

Chemical Engineering Journal Pub Date : 2024-11-23 DOI:10.1016/j.cej.2024.157988

Min Wang, Guorong Xu, Yingzhen Wu, Ralph Rolly Gonzales, Ke Xu, Heli Zhao, Fenfen Wang

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引用次数: 0

Abstract

Interfacial solar evaporation has emerged as a promising technology for sustainable freshwater production using renewable green energy to alleviate freshwater shortages. Hydrogels have been regarded as the most effective platform materials for interfacial solar evaporation due to their inherent hydrophilicity and water retention capabilities. This review initially describes the endeavors in molecular and structural engineering of hydrogels to achieve highly efficient interfacial solar evaporation with increased intermediated water content, improved heat confinement and water transport management, salt-resilience and three-dimensional structures. Subsequently, it scrutinizes and discusses the development of hydrogel evaporators with additional functionalities, including stimuli-responsive properties, self-healing, recyclability, disinfection, and volatile organic compound removal abilities for better water purification performance. Furthermore, it summarizes the potential applications of hydrogels in the emerging next-generation interfacial solar evaporators for metal ion extraction, electricity generation, and evaporative cooling beyond seawater desalination. Finally, conclusions are drawn and future perspectives on hydrogel-based systems are proposed. This review will provide insights into engineering hydrogels for achieving highly efficient solar evaporation performance while promoting practical and wide-ranging applications.

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利用水凝胶工程技术开发下一代多功能界面太阳能蒸发器，超越海水淡化领域

界面太阳能蒸发已成为利用可再生绿色能源可持续生产淡水以缓解淡水短缺问题的一项前景广阔的技术。水凝胶因其固有的亲水性和保水能力，被视为界面太阳能蒸发最有效的平台材料。本综述首先介绍了水凝胶分子和结构工程方面的努力，以实现高效的界面太阳能蒸发，增加中间水含量，改善热封闭和水传输管理，提高耐盐性和三维结构。随后，报告仔细研究并讨论了具有附加功能的水凝胶蒸发器的开发，这些附加功能包括刺激响应特性、自愈合、可回收性、消毒和去除挥发性有机化合物的能力，以实现更好的水净化性能。此外，报告还总结了水凝胶在新兴的下一代界面太阳能蒸发器中的潜在应用，这些蒸发器可用于海水淡化之外的金属离子提取、发电和蒸发冷却。最后得出结论，并提出了水凝胶系统的未来展望。本综述将为实现高效太阳能蒸发性能的水凝胶工程提供深入见解，同时促进实际和广泛的应用。

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来源期刊

Chemical Engineering Journal 工程技术-工程：化工

CiteScore

21.70

自引率

9.30%

发文量

6781

审稿时长

2.4 months

期刊介绍： The Chemical Engineering Journal is an international research journal that invites contributions of original and novel fundamental research. It aims to provide an international platform for presenting original fundamental research, interpretative reviews, and discussions on new developments in chemical engineering. The journal welcomes papers that describe novel theory and its practical application, as well as those that demonstrate the transfer of techniques from other disciplines. It also welcomes reports on carefully conducted experimental work that is soundly interpreted. The main focus of the journal is on original and rigorous research results that have broad significance. The Catalysis section within the Chemical Engineering Journal focuses specifically on Experimental and Theoretical studies in the fields of heterogeneous catalysis, molecular catalysis, and biocatalysis. These studies have industrial impact on various sectors such as chemicals, energy, materials, foods, healthcare, and environmental protection.