Preparation of Superhydrophobic Magnetic Cellulose Sponge for Removing Oil from Water

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• 作者：Huili Peng ; Hao Wang ; Jianning Wu ; Guihua Meng ; Yixi Wang ; Yulin Shi ; Zhiyong Liu ; Xuhong Guo
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2016
• 出版时间：January 27, 2016
• 年：2016
• 卷：55
• 期：3
• 页码：832-838
• 全文大小：497K
• ISSN：1520-5045

文摘

It is still a challenging global task for oil/water separation. Here we fabricate superhydrophobic magnetic cellulose sponge (SMCE) that can be used to separate free oil/water mixtures and surfactant-stabilized W/O emulsions. The simple modification includes only two steps: a thin layer of ferroferric oxide (Fe₃O₄) was coated on cellulose sponge surface via codeposition method, and subsequently magnetic cellulose sponge was modified with hexadecyltrimethoxysilane, which could react with Fe₃O₄ or hydroxyl groups of cellulose. The purpose of coating Fe₃O₄ is to increase the roughness of the surface and recycle the sample by magnetic force. SMCE could separate oil–water mixtures with a high separation efficiency and good reusability. The sample is green, low cost, and environmental friendly, which makes it a promising candidate to be used in oil–water separation.