Facile Preparation of Nanostructured, Superhydrophobic Filter Paper for Efficient Water/Oil Separation.
Facile Preparation of Nanostructured, Superhydrophobic Filter Paper for Efficient Water/Oil Separation.
复制标题
轻松制备纳米结构超疏水滤纸，用于高效水/油分离
DOI：
10.1371/journal.pone.0151439
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发表时间：
2016
期刊：
影响因子：
3.7
通讯作者：
Yu HZ
中科院分区：
文献类型：
--
作者：
Wang J;Wong JX;Kwok H;Li X;Yu HZ
在本文中，我们提出了一种简便且经济有效的方法来获得超疏水滤纸，并展示了其在高效水/油分离中的应用。通过在受控反应条件下将结构不同的有机硅烷前体（例如十八烷基三氯硅烷和甲基三氯硅烷）偶联到纸纤维上，我们制定了一种简单、廉价且有效的方案，以在传统滤纸上实现理想的超疏水和超亲油表面。硅烷化超疏水滤纸呈现出纳米结构形貌，对水/油混合物具有很高的分离效率（高达99.4%）。改性滤纸在水溶液和有机溶剂中均稳定，可多次重复使用。本研究表明，我们新开发的二元硅烷化是一种有前途的改性纤维素基材料的方法，可用于实际应用，特别是工业废水处理和生态系统恢复。
In this paper, we present a facile and cost-effective method to obtain superhydrophobic filter paper and demonstrate its application for efficient water/oil separation. By coupling structurally distinct organosilane precursors (e.g., octadecyltrichlorosilane and methyltrichlorosilane) to paper fibers under controlled reaction conditions, we have formulated a simple, inexpensive, and efficient protocol to achieve a desirable superhydrophobic and superoleophilic surface on conventional filter paper. The silanized superhydrophobic filter paper showed nanostructured morphology and demonstrated great separation efficiency (up to 99.4%) for water/oil mixtures. The modified filter paper is stable in both aqueous solutions and organic solvents, and can be reused multiple times. The present study shows that our newly developed binary silanization is a promising method of modifying cellulose-based materials for practical applications, in particular the treatment of industrial waste water and ecosystem recovery.