Poly (vinyl alcohol)/cellulose nanocomposite pervaporation membranes for ethanol dehydration

被引：5
|
作者：
Bai, Lu [1 ]
Qu, Ping [1 ]
Li, Shuai [1 ]
Gao, Yuan [1 ]
Zhang, Liping [1 ]
机构：
[1] Beijing Forestry Univ, Coll Mat Sci & Technol, Beijing 100083, Peoples R China
来源：
ADVANCED MATERIAL SCIENCE AND TECHNOLOGY, PTS 1 AND 2 | 2011年 / 675-677卷
关键词：
pervaporation; poly (vinyl alcohol); cellulose; nanocomposite; SEPARATION;
D O I：
10.4028/www.scientific.net/MSF.675-677.383
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this study, pervaporation membranes were prepared from poly( vinyl alcohol) (PVA) with different amounts of cellulose nanocrystals as filler, and characterized by scanning electron microscopy (SEM). The characterization results demonstrated that cellulose nanocrystal particles dispersed homogeneously within the PVA matrix. Moreover, the pervaporation performance of these membranes was investigated using the separation of ethanol-water mixture as model system. Among all the prepared membranes, PVA/cellulose nanocomposite membrane containing 1 wt% cellulose nanocrystals exhibited the best pervaporation performance, whose averaged permeation flux reduced slightly but separation factor was increased from 83 to 163 for 80% aqueous solution of ethanol at 80 degrees C respectively.
引用
收藏
页码：383 / 386
页数：4
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