A comparison between blending and surface deposition methods for the preparation of iron oxide/polysulfone nanocomposite membranes

被引:57
作者
Homayoonfal, Maryam [1 ,2 ]
Mehrnia, Mohammad Reza [1 ,2 ]
Shariaty-Niassar, Mojtaba [1 ]
Akbari, Ahmad [3 ]
Ismail, Ahmad Fauzi [4 ]
Matsuura, Takeshi [5 ]
机构
[1] Univ Tehran, Coll Engn, Sch Chem Engn, Tehran, Iran
[2] Univ Tehran, Water Reuse Membrane & Bioseparat Res Inst, Tehran, Iran
[3] Univ Kashan, Inst Nanosci & Nanotechnol, Kashan, Iran
[4] Univ Teknol Malaysia, Adv Membrane Technol Res Ctr AMTEC, Skudai 81310, Johor Bahru, Malaysia
[5] Univ Ottawa, Dept Chem Engn, Ottawa, ON, Canada
关键词
Iron oxide nanoparticles; Blending method; Surface deposition method; Photopolymerization; Interfacial polymerization; THIN-FILM-COMPOSITE; WATER FLUX; TIO2; NANOPARTICLES; OSMOSIS MEMBRANE; PHASE INVERSION; ULTRAFILTRATION MEMBRANES; POLYAMIDE MEMBRANE; RO MEMBRANE; NANOFILTRATION; PERFORMANCE;
D O I
10.1016/j.desal.2014.09.031
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
The aim of this study is to investigate the effect of the presence and impregnation of iron oxide nanoparticles with the polysulfone membrane matrix. The nanoparticles were synthesized via co-precipitation method and were added to the membrane structure through blending with the polymeric matrix (Blended Nanocomposite Membranes (BNM)), deposition by photopolymerization (PhotoPolymerized Nanocomposite Membranes (PPNM)) and deposition by interfacial polymerization (Interfacially Polymerized Nanocomposite Membranes (IPNM)). FTIR analysis proved the presence of nanoparticles in all of the three types of membranes. According to AFM images, nanoparticles enhance the membrane roughness. On the account of SEM images obtained from the membrane surface, nanocomposite membranes have a more uniform surface compared to neat polymeric membranes. In addition, the cross-sectional SEM images of the membrane revealed that the blending method provides the opportunity of controlling the membrane morphology by means of nanoparticles. Contact angle analysis confirmed the development of nanocomposite membrane hydrophilicity versus neat polymeric membranes. The filtration experiments including permeation flux, dye rejection, and molecular weight cut off were done to compare all of the nanocomposite membranes. The results indicated that the blending method can improve the membrane structural properties and the deposition method can improve their separation yield. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码:125 / 142
页数:18
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