期刊
CARBOHYDRATE POLYMERS
卷 140, 期 -, 页码 188-194出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2015.12.028
关键词
Microcrystalline cellulose; Hexadecyltrimethoxysilane; Hydrophobic; Oil-water separation; Composite
资金
- Xinjiang Uygur Autonomous Region Science and Technology Project [201415101]
- NSFC-Xinjiang Joint Fund for Local Outstanding Youth [U1403392]
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.
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