期刊
APPLIED CLAY SCIENCE
卷 101, 期 -, 页码 419-429出版社
ELSEVIER
DOI: 10.1016/j.clay.2014.08.017
关键词
p-TSA; Acid modified clay; Pervaporation; lsopropanol dehydration; Clay composite
资金
- Department of Atomic Energy (DAE)
- Board of Research in Nuclear Sciences (BRNS) [2013/34/4/BRNS]
- Vision Group of Science and Technology (VGST) [91]
- Admar Mutt Education Foundation (AMEF), Bangalore
The para-toluene sulfonic acid (p-TSA) treated clay (5, 10 and 15 wt.% loadings) particles were inserted into sodium alginate (NaAlg) matrix to derive the composite membranes that showed enhanced pervaporation performance for isopropanol separation. The 10 wt.% modified clay-loaded NaAlg membranes showed the highest selectivity of 5781 with a permeance of 3423 GPU for 10 wt.% water containing isopropanol feed mixture at 30 degrees C, showing a 140% higher selectivity compared to pristine clay-loaded NaAlg composite membrane. This effect is ascribed to an enhanced surface area and hydrophilicity after p-TSA treatment of clay, as verified by BET and TGA studies. The membranes were characterized by a variety of physico-chemical techniques and their pervaporation performance was assessed in terms of selectivity, permeance, with extent of variations in filler loading, temperature and feed water composition. (C) 2014 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据