蒸发
海水淡化
蒸发器
太阳能淡化
材料科学
膜
化学工程
海水
环境工程
化学
环境科学
废物管理
纳米技术
气象学
机械工程
工程类
物理
热交换器
生物化学
海洋学
地质学
作者
Jing Zhang,Zhengtong Li,Taotao Meng,Shaohong Zang,Chao Yang,Xinzhi Luo,Hengwei Wang,Jing Chen,Fei Jing,Chengbing Wang,Haolan Xu,Yingtang Zhou
标识
DOI:10.1016/j.cej.2022.137893
摘要
Salt blocking and low evaporation efficiency under weak sun irradiation are two obstacles of solar-thermal seawater desalination in the industrialization process. Herein, the challenges are overcome by a solar-thermal interfacial membrane evaporation (STIME) system, i.e., combining merits of advanced thermal management of interfacial evaporation and salt insulation of membrane evaporation, simultaneously achieving salt-resistance, hydrovoltaic generation, and all-weather vapor generation. By employing a hybrid system based on sandwich-like MXene-graphene oxide-MXene (MGM) on a commercial PVDF membrane ([email protected]), we achieved an evaporation efficiency up to 92.5% and without any salt accumulation for 10 h at 10 wt% NaCl solution. Moreover, the system can also be driven by Joule-heating effect for water evaporation under dark or cloudy conditions. The maximum evaporation rate of this system driven by sunlight (0.5 sun) and electricity (36 V) can reach 10.5 kg m-2h−1. Apart from water evaporation, the [email protected] modules possess excellent molecular sieve effect and can pretreat dye pollution before desalination. Furthermore, the [email protected] also exhibits excellent anti-bacterial effect and biocompatibility, ensuring ecological balance during real-world applications. Thus, the developed STIME system provides a novel avenue for all-weather steam generation to constantly provide safe drinking water.
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