Sequestration of p-nitrophenol from liquid phase by poly(acrylonitrile-co-acrylic acid) containing thioamide group

In this paper, the adsorptive performance of synthesized thiourea (TU) modified poly(acrylonitrile-co-acrylic acid) (TU-P(AN-co-AA)) polymeric adsorbent for capturing p-nitrophenol (PNP) from aqueous solution was investigated. TU-P(AN-co-AA) was synthesized via the redox polymerization method with a...

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Autores principales:	J. W. Soo, L. C. Abdullah, S. N. A. M. Jamil, A. A. Adeyi
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	p-nitrophenol poly(acrylonitrile-co-acrylic acid) polymeric adsorbent regeneration thioamide groups Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/165d3fe649ff4053b807f2009ed599d3
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spelling	oai:doaj.org-article:165d3fe649ff4053b807f2009ed599d32021-11-06T11:12:02ZSequestration of p-nitrophenol from liquid phase by poly(acrylonitrile-co-acrylic acid) containing thioamide group0273-12231996-973210.2166/wst.2021.204https://doaj.org/article/165d3fe649ff4053b807f2009ed599d32021-07-01T00:00:00Zhttp://wst.iwaponline.com/content/84/1/237https://doaj.org/toc/0273-1223https://doaj.org/toc/1996-9732In this paper, the adsorptive performance of synthesized thiourea (TU) modified poly(acrylonitrile-co-acrylic acid) (TU-P(AN-co-AA)) polymeric adsorbent for capturing p-nitrophenol (PNP) from aqueous solution was investigated. TU-P(AN-co-AA) was synthesized via the redox polymerization method with acrylonitrile (AN) and acrylic acid (AA) as the monomers, then modified chemically with thiourea (TU). Characterization analysis with Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), elemental microanalysis for CHNS, zeta potential measurement, Brunauer–Emmett–Teller (BET) surface analysis and thermal analyses were carried out to determine the morphology and physico-chemical properties of the synthesized polymer. The characterization results indicated successful surface modification of polymer with TU. The performance of TU-P(AN-co-AA) for the removal of PNP was investigated under various experimental parameters (adsorbent dosage, initial adsorbate concentration, contact time and temperature). The results demonstrated that the Freundlich isotherm model and pseudo-second-order kinetic model best described the equilibrium and kinetic data, respectively. Thermodynamic studies showed that the uptake of PNP by TU-P(AN-co-AA) was spontaneous and exothermic in nature. The results of the regeneration studies suggested that the TU-P(AN-co-AA) polymer is a reusable adsorbent with great potential for removing PNP from wastewater. Highlights Poly(AN-co-AA) was synthesized using free radical polymerization and modified with thiourea.; The polymeric adsorbent possessed multi-functional groups with negative surface charge.; PNP sequestration onto TU-P(AN-co-AA) adsorbents was high.; Equilibrium and kinetic models were employed for the experimental data analyses.; The regeneration study indicated the stability and reusability of the thioamide-modified polymer.;J. W. SooL. C. AbdullahS. N. A. M. JamilA. A. AdeyiIWA Publishingarticlep-nitrophenolpoly(acrylonitrile-co-acrylic acid)polymeric adsorbentregenerationthioamide groupsEnvironmental technology. Sanitary engineeringTD1-1066ENWater Science and Technology, Vol 84, Iss 1, Pp 237-250 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	p-nitrophenol poly(acrylonitrile-co-acrylic acid) polymeric adsorbent regeneration thioamide groups Environmental technology. Sanitary engineering TD1-1066
spellingShingle	p-nitrophenol poly(acrylonitrile-co-acrylic acid) polymeric adsorbent regeneration thioamide groups Environmental technology. Sanitary engineering TD1-1066 J. W. Soo L. C. Abdullah S. N. A. M. Jamil A. A. Adeyi Sequestration of p-nitrophenol from liquid phase by poly(acrylonitrile-co-acrylic acid) containing thioamide group
description	In this paper, the adsorptive performance of synthesized thiourea (TU) modified poly(acrylonitrile-co-acrylic acid) (TU-P(AN-co-AA)) polymeric adsorbent for capturing p-nitrophenol (PNP) from aqueous solution was investigated. TU-P(AN-co-AA) was synthesized via the redox polymerization method with acrylonitrile (AN) and acrylic acid (AA) as the monomers, then modified chemically with thiourea (TU). Characterization analysis with Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), elemental microanalysis for CHNS, zeta potential measurement, Brunauer–Emmett–Teller (BET) surface analysis and thermal analyses were carried out to determine the morphology and physico-chemical properties of the synthesized polymer. The characterization results indicated successful surface modification of polymer with TU. The performance of TU-P(AN-co-AA) for the removal of PNP was investigated under various experimental parameters (adsorbent dosage, initial adsorbate concentration, contact time and temperature). The results demonstrated that the Freundlich isotherm model and pseudo-second-order kinetic model best described the equilibrium and kinetic data, respectively. Thermodynamic studies showed that the uptake of PNP by TU-P(AN-co-AA) was spontaneous and exothermic in nature. The results of the regeneration studies suggested that the TU-P(AN-co-AA) polymer is a reusable adsorbent with great potential for removing PNP from wastewater. Highlights Poly(AN-co-AA) was synthesized using free radical polymerization and modified with thiourea.; The polymeric adsorbent possessed multi-functional groups with negative surface charge.; PNP sequestration onto TU-P(AN-co-AA) adsorbents was high.; Equilibrium and kinetic models were employed for the experimental data analyses.; The regeneration study indicated the stability and reusability of the thioamide-modified polymer.;
format	article
author	J. W. Soo L. C. Abdullah S. N. A. M. Jamil A. A. Adeyi
author_facet	J. W. Soo L. C. Abdullah S. N. A. M. Jamil A. A. Adeyi
author_sort	J. W. Soo
title	Sequestration of p-nitrophenol from liquid phase by poly(acrylonitrile-co-acrylic acid) containing thioamide group
title_short	Sequestration of p-nitrophenol from liquid phase by poly(acrylonitrile-co-acrylic acid) containing thioamide group
title_full	Sequestration of p-nitrophenol from liquid phase by poly(acrylonitrile-co-acrylic acid) containing thioamide group
title_fullStr	Sequestration of p-nitrophenol from liquid phase by poly(acrylonitrile-co-acrylic acid) containing thioamide group
title_full_unstemmed	Sequestration of p-nitrophenol from liquid phase by poly(acrylonitrile-co-acrylic acid) containing thioamide group
title_sort	sequestration of p-nitrophenol from liquid phase by poly(acrylonitrile-co-acrylic acid) containing thioamide group
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/165d3fe649ff4053b807f2009ed599d3
work_keys_str_mv	AT jwsoo sequestrationofpnitrophenolfromliquidphasebypolyacrylonitrilecoacrylicacidcontainingthioamidegroup AT lcabdullah sequestrationofpnitrophenolfromliquidphasebypolyacrylonitrilecoacrylicacidcontainingthioamidegroup AT snamjamil sequestrationofpnitrophenolfromliquidphasebypolyacrylonitrilecoacrylicacidcontainingthioamidegroup AT aaadeyi sequestrationofpnitrophenolfromliquidphasebypolyacrylonitrilecoacrylicacidcontainingthioamidegroup
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Sequestration of p-nitrophenol from liquid phase by poly(acrylonitrile-co-acrylic acid) containing thioamide group

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