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Facile preparation of superhydrophobic porous wood for continuous oil-water separation
Journal of Water Process Engineering ( IF 7 ) Pub Date : 2020-05-01 , DOI: 10.1016/j.jwpe.2020.101279
Mengxin Zhao , Yang Tao , Jinhu Wang , Yi He

Preparation of superhydrophobic porous wood is an important avenue for realizing efficient oil-water separation, but the reported methods require the removal of hemicellulose and lignin as well as energy consuming freeze-drying process. In the present study, we report a facile strategy for cost-effective, convenient, simple, and highly effective preparation of polymethylsiloxane (POMS) modified wood. The resulting POMS modified wood is superhydrophobic, and its water contact angle is as high as 153°. The POMS modified wood is used to selectively remove the oil from bulk water. More importantly, by the combination of superhydrophobic performance, porous structure, and inherent channels, the modified wood is able to continuously separate oil-water mixture and oil-in-water emulsion, with a high separation efficiency. The superhydrophobic POMS modified wood has a good potential application in wastewater treatment, oil spill cleanup, emulsion separation, and so on.



中文翻译:

用于连续油水分离的超疏水多孔木材的简便制备

制备超疏水性多孔木材是实现有效油水分离的重要途径,但已报道的方法需要去除半纤维素和木质素以及耗能的冷冻干燥工艺。在本研究中,我们报告了一种经济高效,方便,简单和高效制备聚甲基硅氧烷(POMS)改性木材的简便策略。所得的POMS改性木材具有超疏水性,其水接触角高达153°。POMS改性木材用于从大量水中选择性去除油。更重要的是,结合超疏水性能,多孔结构和固有通道,改性木材能够以高分离效率连续分离油水混合物和水包油乳液。

更新日期:2020-05-01
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