Preparation of thin-film composite membranes supported with electrospun nanofibers for desalination by forward osmosis

被引：25
作者：
Al-Furaiji M. [1 ]
Kadhom M. [2 ]
Kalash K. [1 ]
Waisi B. [3 ]
Albayati N. [4 ]
机构：
[1] Environment and Water Directorate, Ministry of Science and Technology, Baghdad
[2] Department of Environment, College of Energy and Environmental Sciences, Alkarkh University of Science, Baghdad
[3] Department of Chemical Engineering, College of Engineering, University of Baghdad, Baghdad
[4] Department of Science, College of Basic Education, University of Wasit, Azizia, Wasit
来源：
Drinking Water Engineering and Science | 2020年 / 13卷 / 02期
关键词：
Osmosis membranes - Nanocomposite films - Composite membranes - Contact angle - Film preparation - Reverse osmosis - Nanofibers - Water filtration - Chlorine compounds - Energy utilization - Scanning electron microscopy - Thin films;
D O I：
10.5194/dwes-13-51-2020
中图分类号：
学科分类号：
摘要：
The forward osmosis (FO) process has been considered to be a viable option for water desalination in comparison to the traditional processes like reverse osmosis, regarding energy consumption and economical operation. In this work, a polyacrylonitrile (PAN) nanofiber support layer was prepared using the electrospinning process as a modern method. Then, an interfacial polymerization reaction between m-phenylenediamine (MPD) and trimesoyl chloride (TMC) was carried out to generate a polyamide selective thin-film composite (TFC) membrane on the support layer. The TFC membrane was tested in FO mode (feed solution facing the active layer) using the standard methodology and compared to a commercially available cellulose triacetate membrane (CTA). The synthesized membrane showed a high performance in terms of water flux (16 Lm-2 h-1) but traded the salt rejection (4 gm-2 h-1) compared with the commercial CTA membrane (water flux D 13 Lm-2 h-1 and salt rejection = 3 gm-2 h-1) at no applied pressure and room temperature. Scanning electron microscopy (SEM), contact angle, mechanical properties, porosity, and performance characterizations were conducted to examine the membrane. © 2020 Author(s).
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页码：51 / 57
页数：6
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