Synergistically regulated surface structure and water transportation of sponge hydrogel evaporator for efficient water desalination

Wenwei Lei, Yunhao Liu, Sovann Khan, Norihiro Suzuki, Chiaki Terashima, Akira Fujishima, Mingjie Liu

研究成果: ジャーナルへの寄稿学術誌査読

1 被引用数 (Scopus)

抄録

Interfacial evaporation using sustainable renewable solar energy offers an exciting opportunity for desalination and wastewater treatment, while the undesirable evaporation rate and the demanding preparation process severely limit its practical application. In this work, high-efficiency solar steam generators based on sponge like hydrogels were fabricated through a facile and scalable one-step salt template method. In this way, the surface structure of the hydrogel and the water transport rate can be synergistically regulated to enhance the absorption of light and inhibit salt crystallization. Thus, the rationally architected sponge hydrogel evaporators (SHEs) presented a high-water evaporation rate of 2.04 kg m−2 h−1 with a high energy conversion efficiency of 93.5% under one sun illumination. Meanwhile, the hydrogel evaporator exhibited stable desalination and contaminant removal performance over a long evaporation period. These results suggest that SHEs will offer the opportunity for actual large-scale applications for efficient desalination and wastewater purification.

本文言語英語
論文番号115780
ジャーナルDesalination
533
DOI
出版ステータス出版済み - 7月 1 2022
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 化学 (全般)
  • 化学工学(全般)
  • 材料科学(全般)
  • 水の科学と技術
  • 機械工学

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