Banana stem based activated carbon as a low-cost adsorbent for methylene blue removal: Isotherm, kinetics, and reusability

A low-cost activated carbon from the banana stem (ACBS) was produced to contribute to environmental preservation in removing methylene blue from wastewater. It is originated from abundant agricultural waste and produced at moderate pyrolysis temperature and short pyrolisis time. In the ACBS producti...

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Autores principales:	Erni Misran, Okta Bani, Elfrida Margaretha Situmeang, Adelina Suciani Purba
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2022
Materias:	Banana stem waste H3PO4 activator Pyrolysis Activated carbon Cationic dye Adsorption Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/34b0f2fc7e744543bd94bbebf16c98a7
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spelling	oai:doaj.org-article:34b0f2fc7e744543bd94bbebf16c98a72021-11-30T04:13:49ZBanana stem based activated carbon as a low-cost adsorbent for methylene blue removal: Isotherm, kinetics, and reusability1110-016810.1016/j.aej.2021.07.022https://doaj.org/article/34b0f2fc7e744543bd94bbebf16c98a72022-03-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1110016821004920https://doaj.org/toc/1110-0168A low-cost activated carbon from the banana stem (ACBS) was produced to contribute to environmental preservation in removing methylene blue from wastewater. It is originated from abundant agricultural waste and produced at moderate pyrolysis temperature and short pyrolisis time. In the ACBS production, the banana stem was impregnated with H3PO4 solution as the activating agent and followed by pyrolysis at 400 °C for a rapid time of 15 min. The treatment significantly improved the ACBS surface area to 837.453 m2/g. The influence of the ACBS dose and initial concentration of dye solution at various contact times were investigated in this study. The utilization of ACBS in low doses exhibited high removal efficiency of methylene blue (0.05 to 0.3 g/100 mL). It can remove methylene blue completely in 90 min of adsorption with an initial concentration of 50 g/mL. High removal efficiencies are still also demonstrated at higher initial concentrations with 99.762% removal for the initial concentration of 200 g/mL. Equilibrium adsorption data had the best agreement to the Freundlich isotherm model and pseudo-second-order kinetics model. It is predicted that ACBS has a maximum adsorption capacity of 101.01 mg/g. ACBS is an environmentally benign and favorable adsorbent in methylene blue removal and also effective for repeated usage up to 6 consecutive times with no desorption step.Erni MisranOkta BaniElfrida Margaretha SitumeangAdelina Suciani PurbaElsevierarticleBanana stem wasteH3PO4 activatorPyrolysisActivated carbonCationic dyeAdsorptionEngineering (General). Civil engineering (General)TA1-2040ENAlexandria Engineering Journal, Vol 61, Iss 3, Pp 1946-1955 (2022)
institution	DOAJ
collection	DOAJ
language	EN
topic	Banana stem waste H3PO4 activator Pyrolysis Activated carbon Cationic dye Adsorption Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Banana stem waste H3PO4 activator Pyrolysis Activated carbon Cationic dye Adsorption Engineering (General). Civil engineering (General) TA1-2040 Erni Misran Okta Bani Elfrida Margaretha Situmeang Adelina Suciani Purba Banana stem based activated carbon as a low-cost adsorbent for methylene blue removal: Isotherm, kinetics, and reusability
description	A low-cost activated carbon from the banana stem (ACBS) was produced to contribute to environmental preservation in removing methylene blue from wastewater. It is originated from abundant agricultural waste and produced at moderate pyrolysis temperature and short pyrolisis time. In the ACBS production, the banana stem was impregnated with H3PO4 solution as the activating agent and followed by pyrolysis at 400 °C for a rapid time of 15 min. The treatment significantly improved the ACBS surface area to 837.453 m2/g. The influence of the ACBS dose and initial concentration of dye solution at various contact times were investigated in this study. The utilization of ACBS in low doses exhibited high removal efficiency of methylene blue (0.05 to 0.3 g/100 mL). It can remove methylene blue completely in 90 min of adsorption with an initial concentration of 50 g/mL. High removal efficiencies are still also demonstrated at higher initial concentrations with 99.762% removal for the initial concentration of 200 g/mL. Equilibrium adsorption data had the best agreement to the Freundlich isotherm model and pseudo-second-order kinetics model. It is predicted that ACBS has a maximum adsorption capacity of 101.01 mg/g. ACBS is an environmentally benign and favorable adsorbent in methylene blue removal and also effective for repeated usage up to 6 consecutive times with no desorption step.
format	article
author	Erni Misran Okta Bani Elfrida Margaretha Situmeang Adelina Suciani Purba
author_facet	Erni Misran Okta Bani Elfrida Margaretha Situmeang Adelina Suciani Purba
author_sort	Erni Misran
title	Banana stem based activated carbon as a low-cost adsorbent for methylene blue removal: Isotherm, kinetics, and reusability
title_short	Banana stem based activated carbon as a low-cost adsorbent for methylene blue removal: Isotherm, kinetics, and reusability
title_full	Banana stem based activated carbon as a low-cost adsorbent for methylene blue removal: Isotherm, kinetics, and reusability
title_fullStr	Banana stem based activated carbon as a low-cost adsorbent for methylene blue removal: Isotherm, kinetics, and reusability
title_full_unstemmed	Banana stem based activated carbon as a low-cost adsorbent for methylene blue removal: Isotherm, kinetics, and reusability
title_sort	banana stem based activated carbon as a low-cost adsorbent for methylene blue removal: isotherm, kinetics, and reusability
publisher	Elsevier
publishDate	2022
url	https://doaj.org/article/34b0f2fc7e744543bd94bbebf16c98a7
work_keys_str_mv	AT ernimisran bananastembasedactivatedcarbonasalowcostadsorbentformethyleneblueremovalisothermkineticsandreusability AT oktabani bananastembasedactivatedcarbonasalowcostadsorbentformethyleneblueremovalisothermkineticsandreusability AT elfridamargarethasitumeang bananastembasedactivatedcarbonasalowcostadsorbentformethyleneblueremovalisothermkineticsandreusability AT adelinasucianipurba bananastembasedactivatedcarbonasalowcostadsorbentformethyleneblueremovalisothermkineticsandreusability
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Banana stem based activated carbon as a low-cost adsorbent for methylene blue removal: Isotherm, kinetics, and reusability

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