材料科学
蒸发
膜
化学工程
太阳能
电压
纳米技术
光电子学
电气工程
气象学
遗传学
生物
物理
工程类
作者
Xiaopan Qiu,Haoran Kong,Yuting Li,Qinhuan Wang,Yu Wang
标识
DOI:10.1021/acsami.2c15997
摘要
Solar-driven interfacial evaporation provides a feasible and sustainable way to solve the fresh water shortage using abundant solar energy and has recently attracted considerable attention. However, it has been limited by the evaporation rate and solar-heat conversion efficiency of the current materials. Herein, a novel Ti4O7 membrane with synergetic photothermal and electrothermal effects was developed using a straightforward in situ approach. Based on interface engineering, the interface between the surface of the membrane and water was hydrophobically modified, and a thermal insulation layer was added to the bottom of the membrane. The optimized self-floating membrane with excellent sunlight absorbability and conductivity achieved a remarkably high evaporation rate of 7.51 kg m–2 h–1 with a voltage of 3 V as compensation under one-sun irradiation (1 kW m–2). Moreover, the bilayered membrane displayed efficient salt ion rejection, and the collected water can meet the World Health Organization (WHO) standard required for potable water.
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