Novel Maleic Acid, Crosslinked, Nanofibrous Chitosan/Poly (Vinylpyrrolidone) Membranes for Reverse Osmosis Desalination

Fresh and clean water is consistently depleting and becoming a serious problem with rapid increases in population, so seawater desalination technology has captured global attention. For an efficient desalination process, this work proposes a novel, nanofibrous, thin-film composite membrane (NF-TFC)...

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Main Authors: Israr Ali, Muhammad Asim Raza, Rashid Mehmood, Atif Islam, Aneela Sabir, Nafisa Gull, Bilal Haider, Sang Hyun Park, Rafi Ullah Khan
Format: Article
Language:English
Published: MDPI AG 2020-10-01
Series:International Journal of Molecular Sciences
Subjects:
Online Access:https://www.mdpi.com/1422-0067/21/19/7338
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author Israr Ali
Muhammad Asim Raza
Rashid Mehmood
Atif Islam
Aneela Sabir
Nafisa Gull
Bilal Haider
Sang Hyun Park
Rafi Ullah Khan
author_facet Israr Ali
Muhammad Asim Raza
Rashid Mehmood
Atif Islam
Aneela Sabir
Nafisa Gull
Bilal Haider
Sang Hyun Park
Rafi Ullah Khan
author_sort Israr Ali
collection DOAJ
description Fresh and clean water is consistently depleting and becoming a serious problem with rapid increases in population, so seawater desalination technology has captured global attention. For an efficient desalination process, this work proposes a novel, nanofibrous, thin-film composite membrane (NF-TFC) based on the deposition of the nanofibrous active layer of a blend of chitosan (CS) and poly (vinylpyrrolidone) (PVP) crosslinked with maleic acid on a 3-triethoxysilylpropylamine functionalized cellulose acetate substrate. FTIR analysis demonstrated the development of chemical and physical interactions and confirmed the incorporation of functional groups present in the NF-TFC. Scanning electron microscopy (SEM) micrographs depict the fibrous structure of the active layers. The reverse osmosis (RO) desalination characteristics of NF-TFC membranes are elevated by increasing the concentration of the crosslinker in a CS/PVP blend. Cellulose acetate (CA)-S4 attained an optimal salt rejection of 98.3% and permeation flux of 42.9 L/m<sup>2</sup>h, suggesting that the NF-TFC membranes could be favorable for seawater desalination.
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spelling doaj.art-51a0c163b5bd4fa9b91904aaddb9bdf82023-11-20T16:04:22ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672020-10-012119733810.3390/ijms21197338Novel Maleic Acid, Crosslinked, Nanofibrous Chitosan/Poly (Vinylpyrrolidone) Membranes for Reverse Osmosis DesalinationIsrar Ali0Muhammad Asim Raza1Rashid Mehmood2Atif Islam3Aneela Sabir4Nafisa Gull5Bilal Haider6Sang Hyun Park7Rafi Ullah Khan8Department of Polymer Engineering & Technology, University of the Punjab, Lahore 54590, PakistanAdvanced Radiation Technology Institute (ARTI), Korea Atomic Energy Research Institute, Jeongeup 56212, KoreaDepartment of Polymer Engineering & Technology, University of the Punjab, Lahore 54590, PakistanDepartment of Polymer Engineering & Technology, University of the Punjab, Lahore 54590, PakistanDepartment of Polymer Engineering & Technology, University of the Punjab, Lahore 54590, PakistanDepartment of Polymer Engineering & Technology, University of the Punjab, Lahore 54590, PakistanInstitute of Chemical Engineering & Technology, University of the Punjab, Lahore 54590, PakistanAdvanced Radiation Technology Institute (ARTI), Korea Atomic Energy Research Institute, Jeongeup 56212, KoreaDepartment of Polymer Engineering & Technology, University of the Punjab, Lahore 54590, PakistanFresh and clean water is consistently depleting and becoming a serious problem with rapid increases in population, so seawater desalination technology has captured global attention. For an efficient desalination process, this work proposes a novel, nanofibrous, thin-film composite membrane (NF-TFC) based on the deposition of the nanofibrous active layer of a blend of chitosan (CS) and poly (vinylpyrrolidone) (PVP) crosslinked with maleic acid on a 3-triethoxysilylpropylamine functionalized cellulose acetate substrate. FTIR analysis demonstrated the development of chemical and physical interactions and confirmed the incorporation of functional groups present in the NF-TFC. Scanning electron microscopy (SEM) micrographs depict the fibrous structure of the active layers. The reverse osmosis (RO) desalination characteristics of NF-TFC membranes are elevated by increasing the concentration of the crosslinker in a CS/PVP blend. Cellulose acetate (CA)-S4 attained an optimal salt rejection of 98.3% and permeation flux of 42.9 L/m<sup>2</sup>h, suggesting that the NF-TFC membranes could be favorable for seawater desalination.https://www.mdpi.com/1422-0067/21/19/7338electrospinningreverse osmosisdesalinationpermeation fluxsalt rejection
spellingShingle Israr Ali
Muhammad Asim Raza
Rashid Mehmood
Atif Islam
Aneela Sabir
Nafisa Gull
Bilal Haider
Sang Hyun Park
Rafi Ullah Khan
Novel Maleic Acid, Crosslinked, Nanofibrous Chitosan/Poly (Vinylpyrrolidone) Membranes for Reverse Osmosis Desalination
International Journal of Molecular Sciences
electrospinning
reverse osmosis
desalination
permeation flux
salt rejection
title Novel Maleic Acid, Crosslinked, Nanofibrous Chitosan/Poly (Vinylpyrrolidone) Membranes for Reverse Osmosis Desalination
title_full Novel Maleic Acid, Crosslinked, Nanofibrous Chitosan/Poly (Vinylpyrrolidone) Membranes for Reverse Osmosis Desalination
title_fullStr Novel Maleic Acid, Crosslinked, Nanofibrous Chitosan/Poly (Vinylpyrrolidone) Membranes for Reverse Osmosis Desalination
title_full_unstemmed Novel Maleic Acid, Crosslinked, Nanofibrous Chitosan/Poly (Vinylpyrrolidone) Membranes for Reverse Osmosis Desalination
title_short Novel Maleic Acid, Crosslinked, Nanofibrous Chitosan/Poly (Vinylpyrrolidone) Membranes for Reverse Osmosis Desalination
title_sort novel maleic acid crosslinked nanofibrous chitosan poly vinylpyrrolidone membranes for reverse osmosis desalination
topic electrospinning
reverse osmosis
desalination
permeation flux
salt rejection
url https://www.mdpi.com/1422-0067/21/19/7338
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