Cellulose acetate based Complexation-NF membranes for the removal of Pb(II) from waste water

Abstract This study investigates the removal of Pb(II) using polymer matrix membranes, cellulose acetate/vinyl triethoxysilane modified graphene oxide and gum Arabic (GuA) membranes. These complexation-NF membranes were successfully synthesized via dissolution casting method for better transport phe...

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Autores principales:	H. Idress, S. Z. J. Zaidi, A. Sabir, M. Shafiq, R. U. Khan, C. Harito, S. Hassan, F. C. Walsh
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/0adacdb21449408aa654d4674fa37d27
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spelling	oai:doaj.org-article:0adacdb21449408aa654d4674fa37d272021-12-02T15:23:39ZCellulose acetate based Complexation-NF membranes for the removal of Pb(II) from waste water10.1038/s41598-020-80384-02045-2322https://doaj.org/article/0adacdb21449408aa654d4674fa37d272021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-80384-0https://doaj.org/toc/2045-2322Abstract This study investigates the removal of Pb(II) using polymer matrix membranes, cellulose acetate/vinyl triethoxysilane modified graphene oxide and gum Arabic (GuA) membranes. These complexation-NF membranes were successfully synthesized via dissolution casting method for better transport phenomenon. The varied concentrations of GuA were induced in the polymer matrix membrane. The prepared membranes M-GuA2–M-GuA10 were characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy, atomic force microscope and bio-fouling studies. Thermal stability of the membranes was determined by thermogravimetric analysis under nitrogen atmosphere. Dead end nanofiltration was carried out to study the perm- selectivity of all the membranes under varied pressure and concentration of Pb(NO3)2. The complexation-NF membrane performances were significantly improved after the addition of GuA in the polymer matrix membrane system. M-GuA8 membrane showed optimum result of permeation flux 8.6 l m−2 h−1. Rejection of Pb(II) ions was observed to be around 97.6% at pH 9 for all the membranes due to electrostatic interaction between CA and Gum Arabic. Moreover, with the passage of time, the rate of adsorption was also increased up to 15.7 mg g−1 until steady state was attained. Gum Arabic modified CA membranes can open up new possibilities in enhancing the permeability, hydrophilicity and anti-fouling properties.H. IdressS. Z. J. ZaidiA. SabirM. ShafiqR. U. KhanC. HaritoS. HassanF. C. WalshNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q H. Idress S. Z. J. Zaidi A. Sabir M. Shafiq R. U. Khan C. Harito S. Hassan F. C. Walsh Cellulose acetate based Complexation-NF membranes for the removal of Pb(II) from waste water
description	Abstract This study investigates the removal of Pb(II) using polymer matrix membranes, cellulose acetate/vinyl triethoxysilane modified graphene oxide and gum Arabic (GuA) membranes. These complexation-NF membranes were successfully synthesized via dissolution casting method for better transport phenomenon. The varied concentrations of GuA were induced in the polymer matrix membrane. The prepared membranes M-GuA2–M-GuA10 were characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy, atomic force microscope and bio-fouling studies. Thermal stability of the membranes was determined by thermogravimetric analysis under nitrogen atmosphere. Dead end nanofiltration was carried out to study the perm- selectivity of all the membranes under varied pressure and concentration of Pb(NO3)2. The complexation-NF membrane performances were significantly improved after the addition of GuA in the polymer matrix membrane system. M-GuA8 membrane showed optimum result of permeation flux 8.6 l m−2 h−1. Rejection of Pb(II) ions was observed to be around 97.6% at pH 9 for all the membranes due to electrostatic interaction between CA and Gum Arabic. Moreover, with the passage of time, the rate of adsorption was also increased up to 15.7 mg g−1 until steady state was attained. Gum Arabic modified CA membranes can open up new possibilities in enhancing the permeability, hydrophilicity and anti-fouling properties.
format	article
author	H. Idress S. Z. J. Zaidi A. Sabir M. Shafiq R. U. Khan C. Harito S. Hassan F. C. Walsh
author_facet	H. Idress S. Z. J. Zaidi A. Sabir M. Shafiq R. U. Khan C. Harito S. Hassan F. C. Walsh
author_sort	H. Idress
title	Cellulose acetate based Complexation-NF membranes for the removal of Pb(II) from waste water
title_short	Cellulose acetate based Complexation-NF membranes for the removal of Pb(II) from waste water
title_full	Cellulose acetate based Complexation-NF membranes for the removal of Pb(II) from waste water
title_fullStr	Cellulose acetate based Complexation-NF membranes for the removal of Pb(II) from waste water
title_full_unstemmed	Cellulose acetate based Complexation-NF membranes for the removal of Pb(II) from waste water
title_sort	cellulose acetate based complexation-nf membranes for the removal of pb(ii) from waste water
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/0adacdb21449408aa654d4674fa37d27
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Cellulose acetate based Complexation-NF membranes for the removal of Pb(II) from waste water

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