Design of interface-stable Janus solar-energy evaporator
Design of interface-stable Janus solar-energy evaporator
复制标题
界面稳定Janus太阳能蒸发器的设计
DOI：
10.1016/j.ijthermalsci.2022.107712
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发表时间：
2022
影响因子：
4.5
通讯作者：
Shanlin Wang
中科院分区：
文献类型：
--
作者：
Xue Tan;Yi Cheng;Shanlin Wang
太阳能驱动的界面蒸发技术通过促进海水淡化和污水处理，被公认为是解决全球淡水危机的一种有前途的绿色策略。蒸发器的高蒸发效率一直是该领域的研究热点。然而，增强太阳能蒸汽发生器的界面稳定性的报道很少，尽管它在简化设备和扩展应用场景方面具有重要价值。在这里，我们设计了一种新的方法来制造Janus太阳能蒸发器，灵感来自荷叶的超疏水/超亲水二元合作策略。上层的超疏水CNT@epoxy涂层实现了漂浮性和高效光热转换，下层的超亲水SiO2涂层确保了高效的水传输和蒸发热定位。以泡沫铜为代表的骨架结构，在界面稳定性和优异的蒸发性方面发挥其独特的优势。结果表明，该装置的最大负荷和汽提压力分别为42.5 Pa和37.2 Pa，在同一太阳光照强度下，蒸发速率可达1.84 kg m-2 h-1。对模拟海水、湖水和乳化油的离子截留率均在99.99%以上。这些已集成到我们的Janus太阳能蒸发器中的多个关键特性预计将为海水淡化和污水处理的广泛应用提供独特的优势。
Solar-driven interfacial evaporation has been recognized as a promising and green strategy to solve the global fresh water crisis by promoting seawater desalination and sewage treatment. The high evaporative efficiency of evaporators has long been the focus in this field. However, it is rarely reported to enhance the interface stability of the solar steam generator, although it is of great value in simplifying devices and expanding application scenarios. Here, we design a novel approach to fabricate Janus solar-energy evaporator, inspired by the superhydrophobic/superhydrophilic binary cooperation strategy of lotus leaf. The upper superhydrophobic CNT@epoxy coating achieve floatability and high-efficient photothermal conversion, and the lower superhydrophilic SiO2coating ensure efficient water transportation and evaporation heat localization. Using copper foam as a representative skeleton structure, we perform its unique advantages in interface stability and excellent evaporation. The results show that its maximum loading and stripping pressure are about 42.5 Pa and 37.2 Pa, and the evaporation rate can reach 1.84 kg m−2h−1under one solar illumination intensity. Further testing reveal that the ion rejection ratios are over 99.99% when treating simulated seawater, lake water or emulsified oil. These multiple key properties that have been integrated into our Janus solar-energy evaporator are expected to provide unique advantages for a wide range of applications in seawater desalination and sewage treatment.
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DOI：
10.1002/slct.201701200
发表时间：
2017-09
期刊：
--
影响因子：
--
作者：
S. Gahlot;P. Sharma;P. Jha;V. Kulshrestha
通讯作者：
S. Gahlot;P. Sharma;P. Jha;V. Kulshrestha
影响因子：
3.8
作者：
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通讯作者：
Qingshuai Yan;B. Xin;Zhuoming Chen;Yan Liu
DOI：
10.1016/j.matpr.2017.11.655
发表时间：
2018
期刊：
Materials Today: Proceedings
影响因子：
--
作者：
A. Thakur;R. Purohit;R. Rana;Din Bandhu
通讯作者：
A. Thakur;R. Purohit;R. Rana;Din Bandhu
影响因子：
9.5
作者：
Xibiao Li;Changfeng Guan;Xiaodong Gao;Xiahua Zuo;Weimin Yang;Hua Yan;Meinong Shi;Haoyi Li;
通讯作者：
Xibiao Li;Changfeng Guan;Xiaodong Gao;Xiahua Zuo;Weimin Yang;Hua Yan;Meinong Shi;Haoyi Li;
由空气封闭三维分层网络引起的毛细管流优化热局部化，用于提高太阳能蒸发。
影响因子：
9.5
作者：
Zhang Wei;Zhang Gong;Ji Qinghu;Liu Huijuan;Liu Ruiping;Qu Jiuhui
通讯作者：
Qu Jiuhui