Acid blue 25 adsorption on base treated Shorea dasyphylla sawdust: kinetic, isotherm, thermodynamic and spectroscopic analysis

The potential of base treated Shorea dasyphylla (BTSD) sawdust for Acid Blue 25 (AB 25) adsorption was investigated in a batch adsorption process. Various physiochemical parameters such as pH, stirring rate, dosage, concentration, contact time and temperature were studied. The adsorbent was characte...

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Main Authors:	Megat Hanafiah, Megat Ahmad Kamal, Wan Ngah, Wan Saime, Zolkafly, Shahira Hilwani, Lee, Ching Teong, Abdul Majid, Zafri Azran
Format:	Article
Language:	English
Published:	Research Center for Eco-environmental Sciences,Chinese Academy of Sciences 2012
Subjects:	QK Botany
Online Access:	http://irep.iium.edu.my/29140/ http://irep.iium.edu.my/29140/ http://irep.iium.edu.my/29140/1/Acid_Blue_25.pdf

id	iium-29140
recordtype	eprints
spelling	iium-291402013-03-15T08:11:06Z http://irep.iium.edu.my/29140/ Acid blue 25 adsorption on base treated Shorea dasyphylla sawdust: kinetic, isotherm, thermodynamic and spectroscopic analysis Megat Hanafiah, Megat Ahmad Kamal Wan Ngah, Wan Saime Zolkafly, Shahira Hilwani Lee, Ching Teong Abdul Majid, Zafri Azran QK Botany The potential of base treated Shorea dasyphylla (BTSD) sawdust for Acid Blue 25 (AB 25) adsorption was investigated in a batch adsorption process. Various physiochemical parameters such as pH, stirring rate, dosage, concentration, contact time and temperature were studied. The adsorbent was characterized with Fourier transform infrared spectrophotometer, scanning electron microscope and Brunauer, Emmett and Teller analysis. The optimum conditions for AB 25 adsorption were pH 2, stirring rate 500 r/min, adsorbent dosage 0.10 g and contact time 60 min. The pseudo second-order model showed the best conformity to the kinetic data. The equilibrium adsorption of AB 25 was described by Freundlich and Langmuir, with the latter found to agree well with the isotherm model. The maximum monolayer adsorption capacity of BTSD was 24.39 mg/g at 300 K, estimated from the Langmuir model. Thermodynamic parameters such as Gibbs free energy, enthalpy and entropy were determined. It was found that AB 25 adsorption was spontaneous and exothermic. Research Center for Eco-environmental Sciences,Chinese Academy of Sciences 2012-02 Article PeerReviewed application/pdf en http://irep.iium.edu.my/29140/1/Acid_Blue_25.pdf Megat Hanafiah, Megat Ahmad Kamal and Wan Ngah, Wan Saime and Zolkafly, Shahira Hilwani and Lee, Ching Teong and Abdul Majid, Zafri Azran (2012) Acid blue 25 adsorption on base treated Shorea dasyphylla sawdust: kinetic, isotherm, thermodynamic and spectroscopic analysis. Journal of Environmental Sciences-China, 24 (2). pp. 261-268. ISSN 1001-0742 http://www.sciencedirect.com/science/article/pii/S100107421160764X
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	QK Botany
spellingShingle	QK Botany Megat Hanafiah, Megat Ahmad Kamal Wan Ngah, Wan Saime Zolkafly, Shahira Hilwani Lee, Ching Teong Abdul Majid, Zafri Azran Acid blue 25 adsorption on base treated Shorea dasyphylla sawdust: kinetic, isotherm, thermodynamic and spectroscopic analysis
description	The potential of base treated Shorea dasyphylla (BTSD) sawdust for Acid Blue 25 (AB 25) adsorption was investigated in a batch adsorption process. Various physiochemical parameters such as pH, stirring rate, dosage, concentration, contact time and temperature were studied. The adsorbent was characterized with Fourier transform infrared spectrophotometer, scanning electron microscope and Brunauer, Emmett and Teller analysis. The optimum conditions for AB 25 adsorption were pH 2, stirring rate 500 r/min, adsorbent dosage 0.10 g and contact time 60 min. The pseudo second-order model showed the best conformity to the kinetic data. The equilibrium adsorption of AB 25 was described by Freundlich and Langmuir, with the latter found to agree well with the isotherm model. The maximum monolayer adsorption capacity of BTSD was 24.39 mg/g at 300 K, estimated from the Langmuir model. Thermodynamic parameters such as Gibbs free energy, enthalpy and entropy were determined. It was found that AB 25 adsorption was spontaneous and exothermic.
format	Article
author	Megat Hanafiah, Megat Ahmad Kamal Wan Ngah, Wan Saime Zolkafly, Shahira Hilwani Lee, Ching Teong Abdul Majid, Zafri Azran
author_facet	Megat Hanafiah, Megat Ahmad Kamal Wan Ngah, Wan Saime Zolkafly, Shahira Hilwani Lee, Ching Teong Abdul Majid, Zafri Azran
author_sort	Megat Hanafiah, Megat Ahmad Kamal
title	Acid blue 25 adsorption on base treated Shorea dasyphylla sawdust: kinetic, isotherm, thermodynamic and spectroscopic analysis
title_short	Acid blue 25 adsorption on base treated Shorea dasyphylla sawdust: kinetic, isotherm, thermodynamic and spectroscopic analysis
title_full	Acid blue 25 adsorption on base treated Shorea dasyphylla sawdust: kinetic, isotherm, thermodynamic and spectroscopic analysis
title_fullStr	Acid blue 25 adsorption on base treated Shorea dasyphylla sawdust: kinetic, isotherm, thermodynamic and spectroscopic analysis
title_full_unstemmed	Acid blue 25 adsorption on base treated Shorea dasyphylla sawdust: kinetic, isotherm, thermodynamic and spectroscopic analysis
title_sort	acid blue 25 adsorption on base treated shorea dasyphylla sawdust: kinetic, isotherm, thermodynamic and spectroscopic analysis
publisher	Research Center for Eco-environmental Sciences,Chinese Academy of Sciences
publishDate	2012
url	http://irep.iium.edu.my/29140/ http://irep.iium.edu.my/29140/ http://irep.iium.edu.my/29140/1/Acid_Blue_25.pdf
first_indexed	2023-09-18T20:42:46Z
last_indexed	2023-09-18T20:42:46Z
_version_	1777409475088482304

Acid blue 25 adsorption on base treated Shorea dasyphylla sawdust: kinetic, isotherm, thermodynamic and spectroscopic analysis

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