Preparation of polysulfone–polyamide thin film composite hollow fiber nanofiltration membranes and their performance in the treatment of aqueous dye solutions

Maurya, Sandip; Parashuram, K.; Singh, Puyam S.; Ray, Paramita; Reddy, A.V.R.

doi:10.1016/j.desal.2012.07.045

Cited by 61 publications

(32 citation statements)

References 30 publications

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“…In comparison with the other PEs or composite membranes [40,23], our membrane showed a higher flux and comparable rejection to metal ions. Although there were some different testing conditions in Table 1, to some extent, the preliminary results have demonstrated that the separation capacity of our (PEI/SCF) 4.5 /PAN membrane was comparable with reference data [23,[38][39][40].…”

Section: Nf Performances Of the Membranes Towards Removal Of Metal Iosupporting

confidence: 77%

LbL assembly of sulfonated cyclohexanone–formaldehyde condensation polymer and poly(ethyleneimine) towards rejection of both cationic ions and dyes

et al. 2015

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Section: Nf Performances Of the Membranes Towards Removal Of Metal Iosupporting

confidence: 77%

LbL assembly of sulfonated cyclohexanone–formaldehyde condensation polymer and poly(ethyleneimine) towards rejection of both cationic ions and dyes

et al. 2015

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“…Maurya et al [21] fabricated TFC hollow fiber nanofiltration membranes by coating a thin polyamide layer on to polysulfone hollow fiber ultrafiltration membrane via IP (m-phenylenediamine and trimesoyl chloride) under different conditions. These membranes exhibited molecular weight cut-off values in the range of 490 to 730 g/mole and showed the rejections in the range of 60-97% for reactive black-5…”

Section: Nfmentioning

confidence: 99%

Thin Film Composite and/or Thin Film Nanocomposite Hollow Fiber Membrane for Water Treatment, Pervaporation and Gas/Vapor Separation

Khulbe

Matsuura

2018

Preprint

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Nowadays asymmetric thin film composite (TFC) polymeric hollow fiber (HF) membranes are extensively used in industrial gas/vapor separations, water treatment etc. There are numerous advantages to use hollow fibers such as: low energy requirements, simplicity of operation, and high specificity. In the present article we discuss the progress made during the past decade in the preparation of the HF substrate and preparation/modification of the thin selective layer. Their applications in water treatment, dehydration of alcohols via pervaporation and gas/vapor separation are also demonstrated.

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“…To our best knowledge, materials for fabricating NF hollow fiber membrane are mainly limited to CA, PPESK, PES, etc. [21,[23][24][25][26][27][28][29]. The development of poly(m-phenylene isophthalamide) (PMIA) NF hollow fiber membrane has not been reported before.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of novel poly(m-phenylene isophthalamide) hollow fiber nanofiltration membrane for effective removal of trace amount perfluorooctane sulfonate from water

Wang

Zhao

et al. 2015

Journal of Membrane Science

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a b s t r a c tThis study investigated the separation performance of a hollow fiber nanofiltration membrane, which was fabricated from poly(m-phenylene isophthalamide) (PMIA) using a dry-jet wet spinning technology, for sustainable water recovery from water containing trace amount of perfluorooctane sulfonate (PFOS) that was a persistent organic pollutant commonly existed in water. SEM spectra indicated that the cross section of the hollow fiber membrane had an asymmetrical structure that consisted of a dense outer surface acting as a selectively layer, a spongy-like transition layer, and finger-like microvoids close to the inner surface. The average pore size and molecular weight cut-off, which were estimated using the solute rejection method, were 0.404 nm and 904 Da, respectively. The PFOS rejection experiments were carried out at the trans-membrane pressures ranging from 4 Â 10 5 Pa to 1.0 Â 10 6 Pa and PFOS concentrations from 50 μg/L to 500 μg/L. In all cases, the PFOS rejections were found to be increased as the PFOS concentration increased. The impact of the pH value and Ca 2 þ concentration of the feed solution on the PFOS rejections was studied in detail. The PFOS rejections improved from 91.17% to 97.49% with an increase in pH from 3.2 to 9.5 at 4 Â 10 5 Pa. An increase of Ca 2 þ concentration from 0.1 mM to 2 mM enhanced PFOS rejection from 97.10% to 99.40% at a trans-membrane pressure of 4 Â 10 5 Pa. The sorption/desorption experiments indicated that the amount of PFOS adsorbed on the membrane surface was five times higher in the presence of Ca 2 þ (2 mM). AFM experiments also demonstrated that the membrane surface was rough with the addition of Ca 2 þ . Hence, the presence of Ca 2 þ enhanced the PFOS adsorption in the membrane surface and caused more pore blockage of the membrane. As such, the declination in the water flux and augmentation in the PFOS rejection were observed.

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Preparation of polysulfone–polyamide thin film composite hollow fiber nanofiltration membranes and their performance in the treatment of aqueous dye solutions

Cited by 61 publications

References 30 publications

LbL assembly of sulfonated cyclohexanone–formaldehyde condensation polymer and poly(ethyleneimine) towards rejection of both cationic ions and dyes

LbL assembly of sulfonated cyclohexanone–formaldehyde condensation polymer and poly(ethyleneimine) towards rejection of both cationic ions and dyes

Thin Film Composite and/or Thin Film Nanocomposite Hollow Fiber Membrane for Water Treatment, Pervaporation and Gas/Vapor Separation

Fabrication of novel poly(m-phenylene isophthalamide) hollow fiber nanofiltration membrane for effective removal of trace amount perfluorooctane sulfonate from water

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