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Multi-scale Ag/CuO Photothermal Materials: Preparation and Application in Seawater Desalination |
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Abstract: In-situ chemical reaction and heat treatment were used to form a wire-like and petal-shaped three-dimensional inorganic substance array on the surface of copper foam, and then Ag nanoparticles (NPs) were deposited on its surface to successfully prepare Ag/CuO composite photothermal material. The composite material has high solar light absorption capacity due to the surface three-dimensional array structure and plasmonic effect caused by Ag NPs. This material combined with melamine foam as evaporation device can achieve highly efficient seawater desalination. In addition, to study the optical trap depth and the metal doping for enhancement of the photothermal conversion efficiency, solar steam generation test system was built to investigate the photothermal evaporation performance of the sample. Under one solar (1 kW·m-2) irradiation, evaporation rate of this device was as high as 1.097 6 kg·m-2· h-1, and its evaporation efficiency could reach 78.38%. |
Keywords: seawater desalination plasmonic metal photothermal conversion Ag/CuO Cu foam |
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LI Zheng-Tong,WANG Cheng-Bing.Multi-scale Ag/CuO Photothermal Materials: Preparation and Application in Seawater Desalination[J].Chinese Journal of Inorganic Chemistry,2020,36(8):1457-1464. |
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