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当前位置: 首页 > 文章 > 磁性超疏水棉布的制备及应用 森林工程 2019 (3) 54-62
Position: Home > Articles > Preparation and Application of Magnetic Superhydrophobic Cotton Cloth Forest Engineering 2019 (3) 54-62

磁性超疏水棉布的制备及应用

作  者：
孙晓晗;郭于田;龙瑞;许月伟;王成毓
单  位：
东北林业大学材料科学与工程学院
关键词：
超疏水;棉布;磁性;CoFe2O4;海上溢油;原油回收
摘  要：
近年来石油泄漏而造成海洋污染的事件频频发生,为解决海上溢油所带来的严重水体污染问题,以棉布为基底,通过低温水热合成法,在棉布表面构建含有CoFe_2O_4粒子的磁性粗糙结构。配制正己烷和十八烷基三氯硅烷(OTS)的混合溶液,采用浸渍法对棉布进行表面疏水改性,制备出具有磁性能的超疏水棉布。通过SEM、VSM、XRD、EDS、FTIR和接触角测量进行表征。结果表明,改性后棉布的疏水性和磁性能良好,其平均接触角为152°,矫顽力为71.21 Oe,饱和磁化强度为2.296emu/g。在60 d的老化过程中,其接触角在150°左右。通过油回收实验表明:对轻油的回收率为99.0%,对原油的回收率为93.7%,且经过多次循环回收实验,对油的回收效率仍保持在较高的水平。使用后的改性棉布可以利用其磁性进行回收,洗涤烘干后可再次利用,同时改性棉布完全过滤了回收的油中的水分,所以回收后的油无需除水便可直接使用。此研究结果为海上溢油问题提供了一种良好的解决方法。
译  名：
Preparation and Application of Magnetic Superhydrophobic Cotton Cloth
作  者：
SUN Xiaohan;GUO Yutian;LONG Rui;XU Yuewei;WANG Chengyu;School of Materials Science and Engineering,Northeast Forestry University;
单  位：
SUN Xiaohan%GUO Yutian%LONG Rui%XU Yuewei%WANG Chengyu%School of Materials Science and Engineering,Northeast Forestry University
关键词：
Superhydrophobic;;cotton cloth;;magnetic;;CoFe2O4;;oil spill;;crude oil recovery
摘  要：
Recent years,oil spills occurred frequently which caused marine pollution. In order to solve the problem of serious water pollution caused by marine oil spills,choosing cotton as base to build the magnetic rough structure on the surface containing CoFe_2O_4 nanoparticles through low-temperature hydrothermal synthesis method. Then it was modified by a mixture of n-hexane and octadecyl trichlorosilane( OTS) on the cotton surface to make it hydrophobic by the means of impregnation method. Finally,the magnetic superhydrophobic cotton cloth was prepared after drying. It was characterized by SEM,VSM,XRD,EDS,FTIR and contact angle test. Results showed that it had good hydrophobic and magnetic property. Its average contact angle was 152°. Its coercivity was71. 21 Oe and saturation magnetization was 2. 296 emu/g. During 60 days of aging test,the contact angle of cotton cloth was still about150°. The results of the recovery of light oil and crude oil by magnetic super-hydrophobic cotton cloth were as follows: the recovery rate of light oil was 99. 0% and the recovery rate of crude oil was 93. 7%. After repeated recycling experiments,the recovery efficiency of oil remained high level. Modified cotton cloth that had been used can be recycled by its magnetic property after washing and drying.The modified cotton cloth can completely filter moisture in the recovered oil,so it can be used directly. The results of this study provide a good solution for offshore oil spill.

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