期刊
NATIONAL SCIENCE REVIEW
卷 5, 期 1, 页码 70-77出版社
OXFORD UNIV PRESS
DOI: 10.1093/nsr/nwx051
关键词
graphene; solar vapor; heat loss; waste water; heavy-metal ions; water purification
资金
- National Basic Research Program of China (973 Program) [2015CB659300]
- National Natural Science Foundation of China [11621091, 11574143]
- Natural Science Foundation of Jiangsu Province [BK20150056, BK20160630]
- Postdoctoral Science Foundation of China [2016M601774]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
- Fundamental Research Funds for the Central Universities
Solar steam generation is emerging as promising solar-energy conversion technology for potential applications in desalination, sterilization and chemical purification. Despite the recent use of photon management and thermal insulation, achieving optimum solar steam efficiency requires simultaneous minimization of radiation, convection and conduction losses without compromising light absorption. Inspired by the natural transpiration process in plants, here we report a 3D artificial transpiration device with all three components of heat loss and angular dependence of light absorption minimized, which enables over 85% solar steam efficiency under one sun without external optical or thermalmanagement. It is also demonstrated that this artificial transpiration device can provide a complementary path for waste-water treatment with a minimal carbon footprint, recycling valuable heavy metals and producing purified water directly from waste water contaminated with heavy metal ions.
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