海水淡化
蒸发器
海水
废水
超亲水性
水热碳化
废物管理
环境工程
工程类
环境科学
碳化
材料科学
制浆造纸工业
化学
复合材料
机械工程
接触角
地质学
海洋学
膜
热交换器
生物化学
扫描电子显微镜
作者
Xi Zhao,Yingying Chen,Pengcheng Lin,Hua Su,Ying Chen
出处
期刊:Desalination
[Elsevier BV]
日期:2023-03-21
卷期号:556: 116549-116549
被引量:14
标识
DOI:10.1016/j.desal.2023.116549
摘要
Over 70 % of the earth's surface is water, though people are facing a shortage of clean water. Desalination and purification plants have been utilizing inexhaustible saline and dirty water for decades, but here we present a portable solar-powered device that works during the journey. The independent steam generator is based on a novel wooden material coated with carbonized carbon dots (CCD). A facile hydrothermal treatment is applied to the balsa wood to produce a superhydrophilic, salt-resisting, and self-insulated wooden sponge. The CCD microspheres show broad absorption over the solar spectrum while the wooden sponge provides a rapid water supply and heat localization. The floating [email protected] sponge evaporator generates steam at the rate of 2.24 kg m−2 h−1 and has an energy efficiency of 85.0 % under 1 sun irradiation. With a unique design of portable water purifier, a traveler could easily obtain clean water after collecting and purifying undrinkable water such as seawater and wastewater on the move as long as the sun shines.
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