Journal
MATERIALS TODAY ENERGY
Volume 9, Issue -, Pages 285-294Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.mtener.2018.06.003
Keywords
CuS nanoflowers; SCM; Integrated structure; LSPRs; Solar vapor generation
Funding
- U.S. National Science Foundation [DMR-1609061]
- College of Arts and Sciences, University of Missouri - Kansas City
- National Key R & D Program of China [2016YFB0300700, 2016YFB0300704]
- State Key Development Program for Basic Research of China (973 project) [2014CB643306]
- NSF of Shanghai [17ZR1440900]
- National Nature Science Foundation of China [51602195]
- Doctoral Innovation Foundation of SMU [2016ycx037]
- Doctoral Excellent Thesis Project Foundation of SMU [2017BXLP005]
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The ever-dwindling freshwater sources and ever-increasing need for freshwater resources are regarded as two important concerns for current society. Solar vapor generation has proven to be an effective and reliable solar-driven technology to overcome these concerns. However, it is a big challenge to prepare low-cost and high-efficiency solar absorber for solar vapor generation. Herein, we report a novel structurally integrated solar absorber composed of CuS nanoflowers and semipermeable collodion membrane (SCM). Three-dimensional (3D) covellite CuS nanoflowers composed of nanosheets have been synthesized with a facile hydrothermal route and their morphology and structure are investigated with various analytical techniques. High solar vapor generation efficiencies of 68.6% and 81.2% were achieved with CuS/SCM under 1 and 4 sun irradiation, respectively, much higher than that of the CuS nanofluid. A stable solar vapor generation performance has been demonstrated over 20 cycles. These results display a promising potential of CuS/SCM as a solar-absorber for efficient solar vapor generation. (C) 2018 Elsevier Ltd. All rights reserved.
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