期刊
NATURE COMMUNICATIONS
卷 9, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/s41467-018-02871-3
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资金
- CSIRO's Future Science Platform Program (CSIRO AIM-FSP)
- Australian Research Council (ARC)
- CSIRO's Science Leadership Program
- CSIRO-QUT Joint Sustainable Processes and Devices Laboratory
- Australian Postgraduate Award (APA) scholarship from the University of Sydney
- CSIRO's postgraduate top-up scholarship
- UTS International Research Scholarship (UTS IRS) from the University of Technology Sydney (UTS)
- FEIT Post Thesis Publication Scholarship from UTS
- Victoria University and Endeavour Australia Cheung Kong Research Fellowship
- National Council for Science and Technology Development (CNPq- Brasil)
- ARC [FT140101208]
- ARC
- High Performance Computing Centre (HPCC) in Nanyang Technological University, Singapore
The inability of membranes to handle a wide spectrum of pollutants is an important unsolved problem for water treatment. Here we demonstrate water desalination via a membrane distillation process using a graphene membrane where water permeation is enabled by nanochannels of multilayer, mismatched, partially overlapping graphene grains. Graphene films derived from renewable oil exhibit significantly superior retention of water vapour flux and salt rejection rates, and a superior antifouling capability under a mixture of saline water containing contaminants such as oils and surfactants, compared to commercial distillation membranes. Moreover, real-world applicability of our membrane is demonstrated by processing sea water from Sydney Harbour over 72 h with macroscale membrane size of 4 cm(2), processing similar to 0.5 L per day. Numerical simulations show that the channels between the mismatched grains serve as an effective water permeation route. Our research will pave the way for large-scale graphene-based antifouling membranes for diverse water treatment applications.
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