Hollow black TiAlOx nanocomposites for solar thermal desalination
Although a solar–thermal conversion technique shows great potential for seawater desalination, there remains a grand challenge in exploring low-cost and high-efficiency photothermal materials. We report here a molten salt assisted galvanic replacement method for preparing a hollow black TiAlOx compo...
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sg-ntu-dr.10356-1466992021-03-05T07:01:24Z Hollow black TiAlOx nanocomposites for solar thermal desalination Yi, Luocai Qi, Dianpeng Shao, Ping Lei, Chaojun Hou, Yang Cai, Pingwei Wang, Genxiang Chen, Xiaodong Wen, Zhenhai School of Materials Science and Engineering Engineering::Materials Photocatalytic Activity Tio2 Although a solar–thermal conversion technique shows great potential for seawater desalination, there remains a grand challenge in exploring low-cost and high-efficiency photothermal materials. We report here a molten salt assisted galvanic replacement method for preparing a hollow black TiAlOx composite, which features a high solar absorptivity with up to 90.2% and has a high efficiency of 71.1% in a high salinity solution containing 15.3 wt% NaCl (∼5 times more concentrated than seawater). We exemplify the practical application of such hollow black TiAlOx composites as photothermal composites by setting up the automatic and manual tracking of solar desalination devices with a photic area of ∼1.0 m2, which can produce purified water with a rate of above 4.0 L m−2 day−1 in high-salinity water under natural light irradiation, and maintains good stability upon 5 days of continuous running. The advantages of the as-developed hollow black TiAlOx composites, including scalability, low cost, and high photothermal conversion efficiency, may open up a promising avenue practical application in seawater desalination. We would like to thank the support of the NSFC (51702284, 21875253), the Fundamental Research Funds for the Central Universities (112109*172210171) and the Startup Foundation for Hundred-Talent Program of Zhejiang University (112100- 193820101/001/022). 2021-03-05T07:01:24Z 2021-03-05T07:01:24Z 2019 Journal Article Yi, L., Qi, D., Shao, P., Lei, C., Hou, Y., Cai, P., . . . Wen, Z. (2019). Hollow black TiAlOx nanocomposites for solar thermal desalination. Nanoscale, 11(20), 9958-9968. doi:10.1039/C8NR10117E 2040-3364 https://hdl.handle.net/10356/146699 10.1039/C8NR10117E 20 11 9958 9968 en Nanoscale © 2019 The Royal Society of Chemistry. All rights reserved. |
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Engineering::Materials Photocatalytic Activity Tio2 Yi, Luocai Qi, Dianpeng Shao, Ping Lei, Chaojun Hou, Yang Cai, Pingwei Wang, Genxiang Chen, Xiaodong Wen, Zhenhai Hollow black TiAlOx nanocomposites for solar thermal desalination |
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Although a solar–thermal conversion technique shows great potential for seawater desalination, there remains a grand challenge in exploring low-cost and high-efficiency photothermal materials. We report here a molten salt assisted galvanic replacement method for preparing a hollow black TiAlOx composite, which features a high solar absorptivity with up to 90.2% and has a high efficiency of 71.1% in a high salinity solution containing 15.3 wt% NaCl (∼5 times more concentrated than seawater). We exemplify the practical application of such hollow black TiAlOx composites as photothermal composites by setting up the automatic and manual tracking of solar desalination devices with a photic area of ∼1.0 m2, which can produce purified water with a rate of above 4.0 L m−2 day−1 in high-salinity water under natural light irradiation, and maintains good stability upon 5 days of continuous running. The advantages of the as-developed hollow black TiAlOx composites, including scalability, low cost, and high photothermal conversion efficiency, may open up a promising avenue practical application in seawater desalination. |
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School of Materials Science and Engineering |
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School of Materials Science and Engineering Yi, Luocai Qi, Dianpeng Shao, Ping Lei, Chaojun Hou, Yang Cai, Pingwei Wang, Genxiang Chen, Xiaodong Wen, Zhenhai |
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Article |
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Yi, Luocai Qi, Dianpeng Shao, Ping Lei, Chaojun Hou, Yang Cai, Pingwei Wang, Genxiang Chen, Xiaodong Wen, Zhenhai |
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Yi, Luocai |
title |
Hollow black TiAlOx nanocomposites for solar thermal desalination |
title_short |
Hollow black TiAlOx nanocomposites for solar thermal desalination |
title_full |
Hollow black TiAlOx nanocomposites for solar thermal desalination |
title_fullStr |
Hollow black TiAlOx nanocomposites for solar thermal desalination |
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Hollow black TiAlOx nanocomposites for solar thermal desalination |
title_sort |
hollow black tialox nanocomposites for solar thermal desalination |
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2021 |
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https://hdl.handle.net/10356/146699 |
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