Synthesis of Graphene Oxide and Functionalized Graphene Oxide Using Improved Hummers Method for the Adsorption of Lead from Aqueous Solutions

One of the most important environmental challenges in the world is environmental pollution with toxic and dangerous heavy metals, which causes various environmental effects. Lead is a heavy metal that can be removed in a variety of methods. In this study, graphene oxide adsorbent was prepared by mod...

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Autores principales:	Farzad Vaziri Alamdarlo, Ghahraman Solookinejad, Fazel Zahakifar, Masoud Rezvani Jalal, Masoud Jabbari
Formato:	article
Lenguaje:	EN FA
Publicado:	Water and Wastewater Consulting Engineers Research Development 2021
Materias:	functionalized graphene oxide aminomethylphosphonic acid aqueous solution lead adsorption capacity Technology T Water supply for domestic and industrial purposes TD201-500 Sewage collection and disposal systems. Sewerage TD511-780
Acceso en línea:	https://doaj.org/article/16a3f168c2ba47f49b9eff62e72f43aa
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spelling	oai:doaj.org-article:16a3f168c2ba47f49b9eff62e72f43aa2021-11-20T08:16:50ZSynthesis of Graphene Oxide and Functionalized Graphene Oxide Using Improved Hummers Method for the Adsorption of Lead from Aqueous Solutions1024-59362383-090510.22093/wwj.2021.266684.3103https://doaj.org/article/16a3f168c2ba47f49b9eff62e72f43aa2021-10-01T00:00:00Zhttp://www.wwjournal.ir/article_137618_a8d335be2833242b29eabe0cfa69e176.pdfhttps://doaj.org/toc/1024-5936https://doaj.org/toc/2383-0905One of the most important environmental challenges in the world is environmental pollution with toxic and dangerous heavy metals, which causes various environmental effects. Lead is a heavy metal that can be removed in a variety of methods. In this study, graphene oxide adsorbent was prepared by modified Hummers method and functionalized with aminomethyl phosphonic acid and its application for the adsorption of lead ions from aqueous solutions in a batch sorption process was investigated. The effect of several batch adsorption parameters such as contact time, pH, adsorbent dose, initial concentration and temperature were investigated. The kinetic data were analyzed by Pseudo-first-order, Pseudo-second-order and Double- exponential kinetic models. The results showed that experimental data was fitted well by Pseudo-second-order kinetic model. The Freundlich and Langmuir isotherm models were applied to describe the equilibrium data. The maximum adsorption capacity of lead ions with graphene oxide and functionalized-graphene oxide adsorbents was found to be 187.80 and 209.41 mg/g at a pH of 2.0 and temperature of 45 ºC, respectively. Furthermore, the graphene oxide and functionalized-graphene oxide adsorbents were regenerated by HCl/HNO3 solution and the adsorption capacity did not change remarkably after seven adsorption-desorption cycles.Farzad Vaziri AlamdarloGhahraman SolookinejadFazel ZahakifarMasoud Rezvani JalalMasoud JabbariWater and Wastewater Consulting Engineers Research Developmentarticlefunctionalized graphene oxideaminomethylphosphonic acidaqueous solutionleadadsorption capacityTechnologyTWater supply for domestic and industrial purposesTD201-500Sewage collection and disposal systems. SewerageTD511-780ENFAآب و فاضلاب, Vol 32, Iss 4, Pp 108-121 (2021)
institution	DOAJ
collection	DOAJ
language	EN FA
topic	functionalized graphene oxide aminomethylphosphonic acid aqueous solution lead adsorption capacity Technology T Water supply for domestic and industrial purposes TD201-500 Sewage collection and disposal systems. Sewerage TD511-780
spellingShingle	functionalized graphene oxide aminomethylphosphonic acid aqueous solution lead adsorption capacity Technology T Water supply for domestic and industrial purposes TD201-500 Sewage collection and disposal systems. Sewerage TD511-780 Farzad Vaziri Alamdarlo Ghahraman Solookinejad Fazel Zahakifar Masoud Rezvani Jalal Masoud Jabbari Synthesis of Graphene Oxide and Functionalized Graphene Oxide Using Improved Hummers Method for the Adsorption of Lead from Aqueous Solutions
description	One of the most important environmental challenges in the world is environmental pollution with toxic and dangerous heavy metals, which causes various environmental effects. Lead is a heavy metal that can be removed in a variety of methods. In this study, graphene oxide adsorbent was prepared by modified Hummers method and functionalized with aminomethyl phosphonic acid and its application for the adsorption of lead ions from aqueous solutions in a batch sorption process was investigated. The effect of several batch adsorption parameters such as contact time, pH, adsorbent dose, initial concentration and temperature were investigated. The kinetic data were analyzed by Pseudo-first-order, Pseudo-second-order and Double- exponential kinetic models. The results showed that experimental data was fitted well by Pseudo-second-order kinetic model. The Freundlich and Langmuir isotherm models were applied to describe the equilibrium data. The maximum adsorption capacity of lead ions with graphene oxide and functionalized-graphene oxide adsorbents was found to be 187.80 and 209.41 mg/g at a pH of 2.0 and temperature of 45 ºC, respectively. Furthermore, the graphene oxide and functionalized-graphene oxide adsorbents were regenerated by HCl/HNO3 solution and the adsorption capacity did not change remarkably after seven adsorption-desorption cycles.
format	article
author	Farzad Vaziri Alamdarlo Ghahraman Solookinejad Fazel Zahakifar Masoud Rezvani Jalal Masoud Jabbari
author_facet	Farzad Vaziri Alamdarlo Ghahraman Solookinejad Fazel Zahakifar Masoud Rezvani Jalal Masoud Jabbari
author_sort	Farzad Vaziri Alamdarlo
title	Synthesis of Graphene Oxide and Functionalized Graphene Oxide Using Improved Hummers Method for the Adsorption of Lead from Aqueous Solutions
title_short	Synthesis of Graphene Oxide and Functionalized Graphene Oxide Using Improved Hummers Method for the Adsorption of Lead from Aqueous Solutions
title_full	Synthesis of Graphene Oxide and Functionalized Graphene Oxide Using Improved Hummers Method for the Adsorption of Lead from Aqueous Solutions
title_fullStr	Synthesis of Graphene Oxide and Functionalized Graphene Oxide Using Improved Hummers Method for the Adsorption of Lead from Aqueous Solutions
title_full_unstemmed	Synthesis of Graphene Oxide and Functionalized Graphene Oxide Using Improved Hummers Method for the Adsorption of Lead from Aqueous Solutions
title_sort	synthesis of graphene oxide and functionalized graphene oxide using improved hummers method for the adsorption of lead from aqueous solutions
publisher	Water and Wastewater Consulting Engineers Research Development
publishDate	2021
url	https://doaj.org/article/16a3f168c2ba47f49b9eff62e72f43aa
work_keys_str_mv	AT farzadvazirialamdarlo synthesisofgrapheneoxideandfunctionalizedgrapheneoxideusingimprovedhummersmethodfortheadsorptionofleadfromaqueoussolutions AT ghahramansolookinejad synthesisofgrapheneoxideandfunctionalizedgrapheneoxideusingimprovedhummersmethodfortheadsorptionofleadfromaqueoussolutions AT fazelzahakifar synthesisofgrapheneoxideandfunctionalizedgrapheneoxideusingimprovedhummersmethodfortheadsorptionofleadfromaqueoussolutions AT masoudrezvanijalal synthesisofgrapheneoxideandfunctionalizedgrapheneoxideusingimprovedhummersmethodfortheadsorptionofleadfromaqueoussolutions AT masoudjabbari synthesisofgrapheneoxideandfunctionalizedgrapheneoxideusingimprovedhummersmethodfortheadsorptionofleadfromaqueoussolutions
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Synthesis of Graphene Oxide and Functionalized Graphene Oxide Using Improved Hummers Method for the Adsorption of Lead from Aqueous Solutions

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