期刊
CELLULOSE
卷 26, 期 3, 页码 1841-1853出版社
SPRINGER
DOI: 10.1007/s10570-018-2153-0
关键词
Draw agent; Forward osmosis; Carboxymethylcellulose; Biocompatible; Quaternary graphene oxide
资金
- University of Tehran
Forward osmosis (FO) as a membrane-based water treatment process, utilizes the natural osmotic pressure gradient as driving force, originates from two solutions with different concentrations separated by a semipermeable membrane. Eligible FO draw agents of low cost, high water flux, easy recovery, and low reverse draw solute flux play a key role in the FO process. Some recently developed polymer hydrogels showed attractive features as draw agents in the FO process. In this study, a biocompatible and biodegradable polymer hydrogel was synthesized via free radical polymerization of the carboxymethylcellulose and acrylic acid as biocompatible monomers and subsequently used as an FO draw agent. In addition, to enhance the FO performance of polymer hydrogel, quaternary graphene oxide (QGO) as nanomodifier was synthesized and incorporated within the hydrogel matrix. The successful incorporation of QGO and its effect on FO performance of the hydrogel was systematically investigated. The obtained results showed that the QGO modified hydrogels have higher swelling ratio than the pure polymer hydrogel due to their more polar functional groups and more porous structures. The QGO hydrogel also has significantly higher water flux than the pure polymer hydrogel. [GRAPHICS] .
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