壳聚糖辅助 MXene 修饰聚合物织物实现高效太阳能驱动含油污染海水界面蒸发。
Chitosan assisted MXene decoration onto polymer fabric for high efficiency solar driven interfacial evaporation of oil contaminated seawater.
机构信息
School of Chemistry and Chemical Engineering, Yangzhou University, No 180, Road Siwangting, Yangzhou, Jiangsu 225002, China.
School of Chemistry and Chemical Engineering, Yangzhou University, No 180, Road Siwangting, Yangzhou, Jiangsu 225002, China; State Key Laboratory of Polymer Materials Engineering, Sichuan University, No. 24, South Section 1, First Ring Road, Chengdu, Sichuan 610065, China; Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Building 22, Qinyuan, No.2318, Yuhangtang Road, Cangqian Street, Yuhang District, Hangzhou 311121, China.
出版信息
J Colloid Interface Sci. 2022 Sep 15;622:169-180. doi: 10.1016/j.jcis.2022.04.074. Epub 2022 Apr 15.
The solar-driven interfacial evaporation (SDIE) is now a promising way to solve the shortage of fresh water. However, high performance SDIE for the oil contaminated seawater remains challenging. Here, we propose a facile "chitosan assisted MXene decoration" strategy to prepare a superhydrophilic and underwater superoleophobic Chitosan/MXene/fabric (CMF) for highly efficient SDIE. Benefiting from the superhydrophilicity and excellent photo-thermal conversion performance, the CMF is served as both the solar absorber and the water transportation path. Under the light illumination with one sun intensity (1 kW·m), a high evaporation rate of 1.50 kg·m·h and efficiency of 88.05% are achieved. The strong interfacial interaction and outstanding salt rejection behavior of the CMF ensure the SDIE long-term stability and durability. In addition, the underwater superoleophobic CMF can effectively and quickly repel different oils and is hence suitable for high performance SDIE of the oil-in-water emulsion and the crude oil contaminated seawater. This work provides a rational design and optimization for the SDIE system, which holds great potential in practical desalination applications.
太阳能驱动界面蒸发（SDIE）是解决淡水短缺问题的一种很有前途的方法。然而，用于处理受污染海水的高性能 SDIE 仍然具有挑战性。在这里，我们提出了一种简便的“壳聚糖辅助 MXene 修饰”策略，以制备用于高效 SDIE 的超亲水和水下超疏油壳聚糖/MXene/织物（CMF）。得益于超亲水性和优异的光热转换性能，CMF 既可用作太阳能吸收器，也可用作水输运通道。在 1 个太阳强度（1 kW·m）的光照下，实现了 1.50 kg·m·h 的高蒸发率和 88.05%的效率。CMF 的强界面相互作用和出色的盐排斥行为确保了 SDIE 的长期稳定性和耐用性。此外，水下超疏油 CMF 可以有效地、快速地排斥不同的油，因此适用于水包油乳液和受原油污染的海水的高性能 SDIE。这项工作为 SDIE 系统提供了合理的设计和优化，在实际的海水淡化应用中具有很大的潜力。
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