A general salt-resistant hydrophilic/hydrophobic nanoporous double layer design for efficient and stable solar water evaporation distillation
Date
2018
Authors
Yang, Yawei
Zhao, Hongyang
Yin, Zongyou
Zhao, Jianqiu
Yin, Xingtian
Li, Na
Yin, Dandan
Li, Yannan
Lei, Bo
Du, Yaping
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Royal Society of Chemistry
Abstract
A novel and elegant hydrophilic/hydrophobic nanoporous double layer structure was designed and developed for efficient long-term water desalination. It contained a hydrophobic salt-resistant hierarchical layer of well-defined Cu2SnSe3 (or Cu2ZnSnSe4) nanosphere arrays for broad solar harvesting and water vapor evaporation, and a hydrophilic filter membrane for continuous water supply and vapor generation. The as-fabricated self-floatable devices achieve remarkable solar water evaporation performances (average evaporation rate: 1.657 kg m−2 h−1 and solar thermal conversion efficiency: 86.6% under one sun) with super stability for water distillation from seawater and wastewater containing organic dyes, heavy metals and bacteria.
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Materials Horizons
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Journal article
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2037-12-31
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