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Liu Y, Tan X, Liu Z, Zeng E, Mei J, Jiang Y, Li P, Sun W, Zhao W, Tian C, Dong Y, Xie Z, Wang CA. Heat-Localized and Salt-Resistant 3D Hierarchical Porous Ceramic Platform for Efficient Solar-Driven Interfacial Evaporation. Small 2024:e2400796. [PMID: 38607275 DOI: 10.1002/smll.202400796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 03/25/2024] [Indexed: 04/13/2024]
Abstract
Solar-driven interfacial evaporation (SDIE) is a highly promising approach to achieve sustainable desalination and tackle the global freshwater crisis. Despite advancements in this field, achieving balanced thermal localization and salt resistance remains a challenge. Herein, the study presents a 3D hierarchical porous ceramic platform for SDIE applications. The utilized alumina foam ceramics (AFCs) exhibit remarkable corrosion resistance and chemical stability, ensuring a prolonged operational lifespan in seawater or brines. The millimeter-scale air-filled pores in AFCs prevent thermal losses through conduction with bulk water, resulting in heat-localized interfaces. The hydrophilic nature of macroporous AFC skeletons facilitates rapid water replenishment on the evaporating surface for effective salt-resistant desalination. Benefiting from its self-radiation adsorption and side-assisted evaporation capabilities, the AFC-based evaporators exhibit high indoor evaporation rates of 2.99 and 3.54 kg m-2 h-1 under one-sided and three-sided illumination under 1.0 sun, respectively. The AFC-based evaporator maintains a high evaporation rate of ≈2.77 kg m-2 h-1 throughout the 21-day long-term test. Furthermore, it achieves a daily water productivity of ≈10.44 kg m-2 in outdoor operations. This work demonstrates the potential of 3D hierarchical porous ceramics in addressing the trade-off between heat localization and salt resistance, and contributes to the development of durable solar steam generators.
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Affiliation(s)
- Yumin Liu
- School of Materials Science and Engineering, National Engineering Research Center for Domestic & Building Ceramics, Jingdezhen Ceramic University, Jingdezhen, 333403, China
| | - Xinming Tan
- School of Materials Science and Engineering, National Engineering Research Center for Domestic & Building Ceramics, Jingdezhen Ceramic University, Jingdezhen, 333403, China
| | - Zhiwei Liu
- School of Materials Science and Engineering, National Engineering Research Center for Domestic & Building Ceramics, Jingdezhen Ceramic University, Jingdezhen, 333403, China
| | - Erqi Zeng
- School of Materials Science and Engineering, National Engineering Research Center for Domestic & Building Ceramics, Jingdezhen Ceramic University, Jingdezhen, 333403, China
| | - Jianxing Mei
- School of Materials Science and Engineering, National Engineering Research Center for Domestic & Building Ceramics, Jingdezhen Ceramic University, Jingdezhen, 333403, China
| | - Yun Jiang
- School of Materials Science and Engineering, National Engineering Research Center for Domestic & Building Ceramics, Jingdezhen Ceramic University, Jingdezhen, 333403, China
| | - Pengzhang Li
- School of Materials Science and Engineering, National Engineering Research Center for Domestic & Building Ceramics, Jingdezhen Ceramic University, Jingdezhen, 333403, China
| | - Weiwei Sun
- College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, 410073, China
| | - Wenyan Zhao
- School of Materials Science and Engineering, National Engineering Research Center for Domestic & Building Ceramics, Jingdezhen Ceramic University, Jingdezhen, 333403, China
| | - Chuanjin Tian
- School of Materials Science and Engineering, National Engineering Research Center for Domestic & Building Ceramics, Jingdezhen Ceramic University, Jingdezhen, 333403, China
| | - Yanhao Dong
- School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
| | - Zhipeng Xie
- School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
| | - Chang-An Wang
- School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
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