A general salt-resistant hydrophilic/hydrophobic nanoporous double layer design for efficient and stable solar water evaporation distillation

Yawei Yang, Hongyang Zhao, Zongyou Yin, Jianqiu Zhao, Xingtian Yin, Na Li, Dandan Yin, Yannan Li, Bo Lei, Yaping Du*, Wenxiu Que

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    241 Citations (Scopus)

    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.

    Original languageEnglish
    Pages (from-to)1143-1150
    Number of pages8
    JournalMaterials Horizons
    Volume5
    Issue number6
    DOIs
    Publication statusPublished - Nov 2018

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