Microporous activated carbon developed from KOH activated biomass waste: surface mechanistic study of methylene blue dye adsorption

In this work, sugarcane bagasse waste (SBW) was used as a lignocellulosic precursor to develop a high-surface-area activated carbon (AC) by thermal treatment of the SBW impregnated with KOH. This SBW activated carbon (SBWAC) was characterized by crystallinity, porosity, surface morphology and functi...

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Autores principales:	Ali H. Jawad, Ahmed Saud Abdulhameed, Noor Nazihah Bahrudin, Nurul Nadiah Mohd Firdaus Hum, S. N. Surip, Syed Shatir A. Syed-Hassan, Emad Yousif, S. Sabar
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	activated carbon adsorption mechanism koh activation methylene blue sugarcane bagasse waste Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/0cbe60e7b4a64a0b966f9ee5130ce904
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spelling	oai:doaj.org-article:0cbe60e7b4a64a0b966f9ee5130ce9042021-11-06T11:26:01ZMicroporous activated carbon developed from KOH activated biomass waste: surface mechanistic study of methylene blue dye adsorption0273-12231996-973210.2166/wst.2021.355https://doaj.org/article/0cbe60e7b4a64a0b966f9ee5130ce9042021-10-01T00:00:00Zhttp://wst.iwaponline.com/content/84/8/1858https://doaj.org/toc/0273-1223https://doaj.org/toc/1996-9732In this work, sugarcane bagasse waste (SBW) was used as a lignocellulosic precursor to develop a high-surface-area activated carbon (AC) by thermal treatment of the SBW impregnated with KOH. This SBW activated carbon (SBWAC) was characterized by crystallinity, porosity, surface morphology and functional groups availability. The SBWAC exhibited Type I isotherm which corresponds to microporosity with high specific surface area of 709.3 m2/g and 6.6 nm of mean pore diameter. Further application of SBWAC as an adsorbent for methylene blue (MB) dye removal demonstrated that the adsorption process closely followed the pseudo-second order kinetic and Freundlich isotherm models. Conversely, a thermodynamic study revealed the endothermic nature and spontaneity of MB dye adsorption on SBWAC with high acquired adsorption capacity (136.5 mg/g). The MB dye adsorption onto SBWAC possibly involved electrostatic interaction, H-bonding and π–π interaction. This work demonstrates SBW as a potential lignocellulosic precursor to produce high-surface-area AC that can potentially remove more cationic dyes from the aqueous environment. HIGHLIGHTS Microporous activated carbon was prepared from sugarcane bagasse via KOH activation.; The activated carbon was used for adsorption of methylene blue dye.; The adsorption capacity for methylene blue dye was 136.5 mg/g.; The adsorption thermodynamic indicates spontaneous and endothermic process.;Ali H. JawadAhmed Saud AbdulhameedNoor Nazihah BahrudinNurul Nadiah Mohd Firdaus HumS. N. SuripSyed Shatir A. Syed-HassanEmad YousifS. SabarIWA Publishingarticleactivated carbonadsorption mechanismkoh activationmethylene bluesugarcane bagasse wasteEnvironmental technology. Sanitary engineeringTD1-1066ENWater Science and Technology, Vol 84, Iss 8, Pp 1858-1872 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	activated carbon adsorption mechanism koh activation methylene blue sugarcane bagasse waste Environmental technology. Sanitary engineering TD1-1066
spellingShingle	activated carbon adsorption mechanism koh activation methylene blue sugarcane bagasse waste Environmental technology. Sanitary engineering TD1-1066 Ali H. Jawad Ahmed Saud Abdulhameed Noor Nazihah Bahrudin Nurul Nadiah Mohd Firdaus Hum S. N. Surip Syed Shatir A. Syed-Hassan Emad Yousif S. Sabar Microporous activated carbon developed from KOH activated biomass waste: surface mechanistic study of methylene blue dye adsorption
description	In this work, sugarcane bagasse waste (SBW) was used as a lignocellulosic precursor to develop a high-surface-area activated carbon (AC) by thermal treatment of the SBW impregnated with KOH. This SBW activated carbon (SBWAC) was characterized by crystallinity, porosity, surface morphology and functional groups availability. The SBWAC exhibited Type I isotherm which corresponds to microporosity with high specific surface area of 709.3 m2/g and 6.6 nm of mean pore diameter. Further application of SBWAC as an adsorbent for methylene blue (MB) dye removal demonstrated that the adsorption process closely followed the pseudo-second order kinetic and Freundlich isotherm models. Conversely, a thermodynamic study revealed the endothermic nature and spontaneity of MB dye adsorption on SBWAC with high acquired adsorption capacity (136.5 mg/g). The MB dye adsorption onto SBWAC possibly involved electrostatic interaction, H-bonding and π–π interaction. This work demonstrates SBW as a potential lignocellulosic precursor to produce high-surface-area AC that can potentially remove more cationic dyes from the aqueous environment. HIGHLIGHTS Microporous activated carbon was prepared from sugarcane bagasse via KOH activation.; The activated carbon was used for adsorption of methylene blue dye.; The adsorption capacity for methylene blue dye was 136.5 mg/g.; The adsorption thermodynamic indicates spontaneous and endothermic process.;
format	article
author	Ali H. Jawad Ahmed Saud Abdulhameed Noor Nazihah Bahrudin Nurul Nadiah Mohd Firdaus Hum S. N. Surip Syed Shatir A. Syed-Hassan Emad Yousif S. Sabar
author_facet	Ali H. Jawad Ahmed Saud Abdulhameed Noor Nazihah Bahrudin Nurul Nadiah Mohd Firdaus Hum S. N. Surip Syed Shatir A. Syed-Hassan Emad Yousif S. Sabar
author_sort	Ali H. Jawad
title	Microporous activated carbon developed from KOH activated biomass waste: surface mechanistic study of methylene blue dye adsorption
title_short	Microporous activated carbon developed from KOH activated biomass waste: surface mechanistic study of methylene blue dye adsorption
title_full	Microporous activated carbon developed from KOH activated biomass waste: surface mechanistic study of methylene blue dye adsorption
title_fullStr	Microporous activated carbon developed from KOH activated biomass waste: surface mechanistic study of methylene blue dye adsorption
title_full_unstemmed	Microporous activated carbon developed from KOH activated biomass waste: surface mechanistic study of methylene blue dye adsorption
title_sort	microporous activated carbon developed from koh activated biomass waste: surface mechanistic study of methylene blue dye adsorption
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/0cbe60e7b4a64a0b966f9ee5130ce904
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Microporous activated carbon developed from KOH activated biomass waste: surface mechanistic study of methylene blue dye adsorption

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