Polymers for Advanced Technologies, ( ISI ), Volume (24), No (1), Year (2013-1) , Pages (383-390)

Title : ( Polysulfone/Brij-58 blend nanofiltration membranes: preparation, morphology and performance )

Authors: Ehsan Saljoughi , Seyed Mahmoud Mousavi , Seyyed Abolhassan Hosseini ,

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In present research, novel asymmetric polysulfone (PSF)membraneswith high hydrophilicity and noticeable rejection of arsenic, as one of the major environmental problems, were prepared from PSF/Brij-58/NMP (1-methyl-2-pyrrolidone) system via immersion precipitation. Pure water was used as gelation media. The variation effect of coagulation bath temperature (CBT) and addition of Brij-58 on morphology, wettabiliy, pure water permeation flux and rejection of As (III) and As (V), as two dominant states of arsenic in the nature, were studied by scanning electron microscopy, contact angle measuring instrument and experimental setup. The results demonstrated that both hydrophilicity and rejection properties of the preparedmembranes were significantly enhanced by small addition of Brij-58 surfactant in the casting solution along with using the lowest level of CBT. Addition of 4 wt.%of Brij-58 and using cold coagulation bath resulted in the highest rejection of As (V). Initial increase in Brij-58 concentration, from 0 wt. % to 2 wt. %, resulted in higher rejection of As (III). However, higher Brij-58 concentrations than 2 wt. % (increase from 2 wt. % to 6 wt. %) led to lower rejection of As (III). Also, it was found out that addition of Brij-58 in the casting solution along with increasing the CBT resulted in formation ofmembraneswith high permeability and sub-layer porosity and thin top layer.

Keywords

membrane; phase inversion; arsenic removal; polysulfone;
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@article{paperid:1033399,
author = {Saljoughi, Ehsan and Mousavi, Seyed Mahmoud and Hosseini, Seyyed Abolhassan},
title = {Polysulfone/Brij-58 blend nanofiltration membranes: preparation, morphology and performance},
journal = {Polymers for Advanced Technologies},
year = {2013},
volume = {24},
number = {1},
month = {January},
issn = {1042-7147},
pages = {383--390},
numpages = {7},
keywords = {membrane; phase inversion; arsenic removal; polysulfone; hydrophilicity},
}

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%0 Journal Article
%T Polysulfone/Brij-58 blend nanofiltration membranes: preparation, morphology and performance
%A Saljoughi, Ehsan
%A Mousavi, Seyed Mahmoud
%A Hosseini, Seyyed Abolhassan
%J Polymers for Advanced Technologies
%@ 1042-7147
%D 2013

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