Adsorption mechanism of reactive dyes onto modified coal-fired bottom ash: equilibrium and thermodynamics study / Hawaiah Imam Maarof, Norhaslinda Nasuha and Nor Aida Zubir

Adsorption has been recognized to be a promising process to remove colours from aqueous solution (Xue, et al., 2009). Utilizing of agricultural and industrial wastes as adsorbents had been explored by many researchers. However, the study of coal-fired bottom ash as adsorbent for dye adsorption is sc...

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Main Authors:	Imam Maarof, Hawaiah, Nasuha, Norhaslinda, Zubir, Nor Aida
Format:	Research Reports
Language:	English
Published:	Research Management Institute (RMI) 2012
Subjects:	Textile bleaching, dyeing, printing, etc.
Online Access:	http://ir.uitm.edu.my/id/eprint/23692/ http://ir.uitm.edu.my/id/eprint/23692/1/LP_HAWAIAH%20IMAM%20MAAROF%20RMI%2012_5.pdf

id	uitm-23692
recordtype	eprints
spelling	uitm-236922019-04-16T09:03:50Z http://ir.uitm.edu.my/id/eprint/23692/ Adsorption mechanism of reactive dyes onto modified coal-fired bottom ash: equilibrium and thermodynamics study / Hawaiah Imam Maarof, Norhaslinda Nasuha and Nor Aida Zubir Imam Maarof, Hawaiah Nasuha, Norhaslinda Zubir, Nor Aida Textile bleaching, dyeing, printing, etc. Adsorption has been recognized to be a promising process to remove colours from aqueous solution (Xue, et al., 2009). Utilizing of agricultural and industrial wastes as adsorbents had been explored by many researchers. However, the study of coal-fired bottom ash as adsorbent for dye adsorption is scanty reported by researcher. In fact, the influence of complex properties of coal-fired bottom ash to the adsorption system have not yet been explored in detailed. Therefore, the study on the adsorption mechanism of dye onto coal-fired bottom ash as well as modified coal-fired bottom ash is needed in improving its capability of dyes adsorption process. The physical and chemical properties of an adsorbent serve significant effects to the adsorption process. Chemical properties include the degree of ionization of the adsorbent surface, the types of functional group which are present on the adsorbent and degree to which these properties may changed by contact with the solution (Bernardin, 1985). Some adsorbents have affinity for H+ and OH' ions, which will directly affect the solution pH, solubility and adsorption capacity. The mechanism might vary from reversible to strong chemical interaction with the presence of active functional groups on the adsorbent surface (Bernardin, 1985). In this study, the equilibrium and thermodynamics studies will be carried out on specific pair of reactive dye-bottom ash and modified coal-fired bottom ash system. Research Management Institute (RMI) 2012 Research Reports NonPeerReviewed text en http://ir.uitm.edu.my/id/eprint/23692/1/LP_HAWAIAH%20IMAM%20MAAROF%20RMI%2012_5.pdf Imam Maarof, Hawaiah and Nasuha, Norhaslinda and Zubir, Nor Aida (2012) Adsorption mechanism of reactive dyes onto modified coal-fired bottom ash: equilibrium and thermodynamics study / Hawaiah Imam Maarof, Norhaslinda Nasuha and Nor Aida Zubir. [Research Reports] (Unpublished)
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Teknologi MARA
building	UiTM Institutional Repository
collection	Online Access
language	English
topic	Textile bleaching, dyeing, printing, etc.
spellingShingle	Textile bleaching, dyeing, printing, etc. Imam Maarof, Hawaiah Nasuha, Norhaslinda Zubir, Nor Aida Adsorption mechanism of reactive dyes onto modified coal-fired bottom ash: equilibrium and thermodynamics study / Hawaiah Imam Maarof, Norhaslinda Nasuha and Nor Aida Zubir
description	Adsorption has been recognized to be a promising process to remove colours from aqueous solution (Xue, et al., 2009). Utilizing of agricultural and industrial wastes as adsorbents had been explored by many researchers. However, the study of coal-fired bottom ash as adsorbent for dye adsorption is scanty reported by researcher. In fact, the influence of complex properties of coal-fired bottom ash to the adsorption system have not yet been explored in detailed. Therefore, the study on the adsorption mechanism of dye onto coal-fired bottom ash as well as modified coal-fired bottom ash is needed in improving its capability of dyes adsorption process. The physical and chemical properties of an adsorbent serve significant effects to the adsorption process. Chemical properties include the degree of ionization of the adsorbent surface, the types of functional group which are present on the adsorbent and degree to which these properties may changed by contact with the solution (Bernardin, 1985). Some adsorbents have affinity for H+ and OH' ions, which will directly affect the solution pH, solubility and adsorption capacity. The mechanism might vary from reversible to strong chemical interaction with the presence of active functional groups on the adsorbent surface (Bernardin, 1985). In this study, the equilibrium and thermodynamics studies will be carried out on specific pair of reactive dye-bottom ash and modified coal-fired bottom ash system.
format	Research Reports
author	Imam Maarof, Hawaiah Nasuha, Norhaslinda Zubir, Nor Aida
author_facet	Imam Maarof, Hawaiah Nasuha, Norhaslinda Zubir, Nor Aida
author_sort	Imam Maarof, Hawaiah
title	Adsorption mechanism of reactive dyes onto modified coal-fired bottom ash: equilibrium and thermodynamics study / Hawaiah Imam Maarof, Norhaslinda Nasuha and Nor Aida Zubir
title_short	Adsorption mechanism of reactive dyes onto modified coal-fired bottom ash: equilibrium and thermodynamics study / Hawaiah Imam Maarof, Norhaslinda Nasuha and Nor Aida Zubir
title_full	Adsorption mechanism of reactive dyes onto modified coal-fired bottom ash: equilibrium and thermodynamics study / Hawaiah Imam Maarof, Norhaslinda Nasuha and Nor Aida Zubir
title_fullStr	Adsorption mechanism of reactive dyes onto modified coal-fired bottom ash: equilibrium and thermodynamics study / Hawaiah Imam Maarof, Norhaslinda Nasuha and Nor Aida Zubir
title_full_unstemmed	Adsorption mechanism of reactive dyes onto modified coal-fired bottom ash: equilibrium and thermodynamics study / Hawaiah Imam Maarof, Norhaslinda Nasuha and Nor Aida Zubir
title_sort	adsorption mechanism of reactive dyes onto modified coal-fired bottom ash: equilibrium and thermodynamics study / hawaiah imam maarof, norhaslinda nasuha and nor aida zubir
publisher	Research Management Institute (RMI)
publishDate	2012
url	http://ir.uitm.edu.my/id/eprint/23692/ http://ir.uitm.edu.my/id/eprint/23692/1/LP_HAWAIAH%20IMAM%20MAAROF%20RMI%2012_5.pdf
first_indexed	2023-09-18T23:11:10Z
last_indexed	2023-09-18T23:11:10Z
_version_	1777418812463775744

Adsorption mechanism of reactive dyes onto modified coal-fired bottom ash: equilibrium and thermodynamics study / Hawaiah Imam Maarof, Norhaslinda Nasuha and Nor Aida Zubir

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