材料科学
蒸发
海水淡化
保温
热的
饮用水净化
化学工程
聚苯乙烯
海水
复合材料
聚合物
环境工程
环境科学
化学
图层(电子)
气象学
物理
工程类
生物化学
海洋学
膜
地质学
作者
Jiahui Chen,Dainan Zhang,Song He,Xia Geng-pei,Xiaoyi Wang,Quanjun Xiang,Tianlong Wen,Zhiyong Zhong
标识
DOI:10.1016/j.jmst.2020.05.075
摘要
In recent years, solar desalination and water evaporation/purification with various artificial architectures have drawn significant attention. Herein, we introduce a rational design structure for efficient solar water evaporation and purification, focusing on the balance between water transportation and thermal insulation. Natural wood after a simple flame treatment on the surface was utilized as the solar absorber, with a high solar absorbance (∼90 %), good hydrophilicity, and excellent heat localization abilities. Besides, a thermal insulator (polystyrene foam) was used to further reduce the thermal loss, and the optimized ratio between the water path and thermal insulator was obtained. A set of floating foam-flamed-wood (F-F-wood) devices were fabricated with a high evaporation rate of 3.92 kg m−2 h−1, exhibiting photothermal purification abilities from seawater and wastewater containing organic dyes and heavy metals. This study sheds light on the rational design of scalable and low-cost devices for solar water evaporation and purification.
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