Synthesis and characterization of a porous and hydrophobic cellulose-based composite for efficient and fast oil-water separation

被引：71
作者：
Wang, Xiangyun
Xu, Shimei
Tan, Yun
Du, Juan
Wang, Jide [1 ]
机构：
[1] Xinjiang Univ, Minist Educ, Key Lab Oil & Gas Fine Chem, Urumqi 830046, Xinjiang, Peoples R China
来源：
CARBOHYDRATE POLYMERS | 2016年 / 140卷
关键词：
Microcrystalline cellulose; Hexadecyltrimethoxysilane; Hydrophobic; Oil-water separation; Composite; OIL/WATER; FABRICATION; ABSORPTION; MEMBRANES; ROBUST; COTTON; FOAM;
D O I：
10.1016/j.carbpol.2015.12.028
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Oily wastewater is generated in diverse industrial processes, and its treatment has become crucial due to increasing environmental concerns. Herein, silanized cellulose was prepared by sol-gel reaction between microcrystalline cellulose (MCC) and hexadecyltrimethoxysilane (HDTMS) using for oil -water separation. The silanized cellulose was characterized by Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), scanning electron microscopy (SEM) and thermal gravimetric analysis (TGA). A higher mass ratio of HDTMS to MCC made silanized cellulose become looser, and showed lower water absorbency. The silanized cellulose exhibited specific separation performance towards vegetable oil-water mixture (not for mineral oil -water mixture) with separation efficiency of 99.93%. Moreover, the separation was fast with a water flux of 4628.5 L m(-2) h(-1). The separation efficiency still remained at 99.77% even after recycling for 10 times. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：188 / 194
页数：7
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