A renewable and biodegradable all-biomass material for the separation of oil from water surface
A renewable and biodegradable all-biomass material for the separation of oil from water surface
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用于从水面分离油的可再生且可生物降解的全生物质材料
DOI：
10.1016/j.surfcoat.2019.05.002
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发表时间：
2019-08
影响因子：
5.4
通讯作者：
Li Wen
中科院分区：
文献类型：
--
作者：
Wang Fajun;Xie Ting;Zhong Wei;Ou Junfei;Xue Mingshan;Li Wen
本论文采用一种简单、廉价、环保、可持续的浸渍-涂布法制备了超疏水、超亲油丝瓜络海绵。该方法以LS为多孔骨架，巴西棕榈蜡（CW）和米糠蜡（RW）为包衣材料，乙酸乙酯为溶剂。蜡层形成颗粒/薄膜复合微结构，使超疏水涂层具有优异的抗水和各种油的浸泡稳定性，以及高的耐腐蚀介质性能。该超疏水超亲油LS可选择性地将油从水表面分离，具有理想的性能，例如高分离容量（> 9.5g/g）、效率（>91%）和可重复使用性（>10次循环）。此外，使用过的SLS可重复用于回收蜡和LS基质。此外，LS基质可以在自然生态循环中被生物降解。本研究为开发可持续、可再生、可生物降解的全生物质油水分离材料提供了新的思路和解决方案。
In this work, superhydrophobic and superoleophilic loofah sponge (LS) was prepared by a facile, inexpensive, eco-friendly and sustainable dip-coating method. This method uses LS as the porous skeleton, carnauba wax (CW) and rice bran wax (RW) as the coating material and ethyl acetate as the solvent. The wax layer forms particle/film composite micro-structures, which makes the superhydrophobic coating have excellent stability against soaking of water and various oils, and high resistance to corrosive mediums. The superhydrophobic and superoleophilic LS can selectively separate oil from water surface with desirable properties, such as high separation capacity (>9.5 g/g), efficiency (>91%), and reusability (>10 cycles). In addition, the used SLS can be reused for the recovery of waxes and LS substrate. Furthermore, the LS substrate can be biodegraded in the natural ecological cycle. The present work provides a new idea and solution for developing sustainable, renewable and biodegradable all-biomass oil/water separation materials.
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