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Chinese ink enabled wood evaporator for continuous water desalination
Desalination ( IF 8.3 ) Pub Date : 2020-12-01 , DOI: 10.1016/j.desal.2020.114727 Xiong-Fei Zhang , Zhongguo Wang , Lian Song , Yi Feng , Jianfeng Yao
Desalination ( IF 8.3 ) Pub Date : 2020-12-01 , DOI: 10.1016/j.desal.2020.114727 Xiong-Fei Zhang , Zhongguo Wang , Lian Song , Yi Feng , Jianfeng Yao
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Abstract Solar-driven water desalination is considered as an efficient and sustainable approach to produce clean water. In this work, a bilayered evaporator composed of black Chinese ink layer and wood sheet substrate for continuous desalination is rationally designed. Millimeter-sized hole arrays were drilled within the wood substrate. The ink coating on the wood surface offers strong and broad light absorption. The hierarchical channels in the wood itself functions as thermal insulator and promotes water transport. In addition, the drilled hole arrays provide salt-rejection pathways and enable the wood evaporator with antifouling property. The wood evaporator (H-C-Wood) shows a stable solar thermal conversion efficiency of 74% and an evaporation rate of 1.6 kg m−2 h−1 under simulated 1 sun irradiation. Such ink deposited solar steam generation device is low cost and has a self-regenerating ability.
更新日期：2020-12-01
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