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Three-dimensional hierarchical CuxS-based evaporator for high-efficiency multifunctional solar distillation
Nano Energy ( IF 17.6 ) Pub Date : 2020-01-08 , DOI: 10.1016/j.nanoen.2020.104465
Wei Huang , Peiwu Su , Yang Cao , Chengcheng Li , Delun Chen , Xinlong Tian , Yaqiong Su , Bin Qiao , Jinchun Tu , Xiaohong Wang

Solar distillation is a promising and sustainable technique for extracting clean water from seawater and/or wastewater. However, the fabrication of evaporators that can simultaneously exhibit high-efficiency, antifouling, and antibacterial properties remains a great challenge. Herein, we for the first time report the CuxS-based solar water evaporator by assembling and designing the dual-phase CuxS composite nanorods into three-dimensional (3D) hierarchical architecture foam with efficient light trapping, superhydrophilic and underwater superoleophobic properties. Owing to the enhanced synergistic photothermal conversion and the confined two-dimensional (2D) water path, the fabricated CuxS/Cu foam (SCF) evaporator can achieve extremely high water evaporation rate of 1.96 kg m−2 h−1 with energy efficiency of 94.5%, which is among the highest performance for inorganic semiconductor-based evaporators. The developed device can also maintain a high evaporation rate of 1.73 kg m−2 h−1, and an average rate of 5.2 L m−2 day−1 in a 30-day consecutive outdoor test, for producing clean water from oil-in-water emulsion with excellent antifouling, antibacterial, and ion rejection properties. As a proof-of-concept application, the CuxS-based evaporator is demonstrated to have superior capability for multiphase purification of clean water and organic solvent from dyed solutions.



中文翻译:

三维多层Cu x S基蒸发器,用于高效多功能太阳能蒸馏

太阳蒸馏是一种从海水和/或废水中提取纯净水的有前途且可持续的技术。然而,同时显示出高效率,防污和抗菌性能的蒸发器的制造仍然是巨大的挑战。在此,我们首次通过将双相Cu x S复合纳米棒组装和设计成具有有效的光捕获,超亲水和水下超疏油特性的三维(3D)分层结构泡沫,来首次报告基于Cu x S的太阳能蒸发器。。由于增强的协同光热转换和受限的二维(2D)水路,制成的Cu xS / Cu泡沫(SCF)蒸发器可实现1.96 kg m -2 h -1的极高水蒸发速率,能量效率为94.5%,是无机半导体基蒸发器的最高性能之一。所开发的设备还可以在连续30天的室外测试中维持1.73 kg m -2 h -1的高蒸发速率和5.2 L m -2 day -1的平均速率,以利用注油法生产干净的水。 -水乳液,具有出色的防污,抗菌和离子排斥性能。作为概念验证应用,Cu x事实证明,基于S的蒸发器具有从染色溶液中多相纯化净水和有机溶剂的出色能力。

更新日期:2020-01-08
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