Synthesis Of Bifunctional Activated Carbon From Gasification Residues For Malachite Green Dye And Atenolol Adsorption

The abundance of gasification char residues which contributed to solid waste management problem is one of the major concerns in biomass gasification industry. This study aims to synthesize activated carbon (AC) derived from gasification residues for malachite green (MG) dye and atenolol (ATN) adsorp...

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Main Author:	Ahmad, Anis Atikah
Format:	Thesis
Language:	English
Published:	2020
Subjects:	T Technology TP Chemical Technology
Online Access:	http://eprints.usm.my/50396/1/Synthesis%20Of%20Bifunctional%20Activated%20Carbon%20From%20Gasification%20Residues%20For%20Malachite%20Green%20Dye%20And%20Atenolol%20Adsorption.pdf
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spelling	my-usm-ep.503962021-11-17T03:42:09Z Synthesis Of Bifunctional Activated Carbon From Gasification Residues For Malachite Green Dye And Atenolol Adsorption 2020-09-01 Ahmad, Anis Atikah T Technology TP Chemical Technology The abundance of gasification char residues which contributed to solid waste management problem is one of the major concerns in biomass gasification industry. This study aims to synthesize activated carbon (AC) derived from gasification residues for malachite green (MG) dye and atenolol (ATN) adsorption via microwave- induced potassium hydroxide (KOH) and carbon dioxide (CO2) activation. Optimum preparation conditions for all ACs prepared were determined using response surface methodology (RSM). Gasified Glyricidia sepium woodchips-based AC (GGSWAC) showed the highest BET surface area and total pore volume of 633.30 m2/g and 0.34 cm3/g, respectively for MG removal; and 483.07 m2/g and 0.26 cm3/g , respectively for ATN adsorption. All adsorbents best fitted to the n-BET isotherm model, suggesting a multilayer adsorption for all systems. Gasified rubber tree root-based AC (GRTRAC) and GGSWAC showed higher maximum saturation capacity (Qe) of 259.49 and 120.57 mg/g, respectively for MG and ATN adsorption at 30ºC. The AC derived from gasified oil palm empty fruit bunches (GOPEFBAC) showed reasonably high removal of MG with Qe value of 219.39 mg/g. Kinetic studies showed that all system followed Avrami model with film diffusion was the rate-limiting step controlling MG removal, while film diffusion and chemisorption controlled the ATN adsorption. Thermodynamic study confirmed that all systems, except ATN-GRTRAC were endothermic in nature. For the column studies, the better correlation of breakthrough data shown by Thomas and Yoon-Nelson model. Results indicated that GGSWAC was the best adsorbent due to its high adsorption performance for both MG dye and ATN removal. 2020-09 Thesis http://eprints.usm.my/50396/ http://eprints.usm.my/50396/1/Synthesis%20Of%20Bifunctional%20Activated%20Carbon%20From%20Gasification%20Residues%20For%20Malachite%20Green%20Dye%20And%20Atenolol%20Adsorption.pdf application/pdf en public phd doctoral Universiti Sains Malaysia Pusat Pengajian Kejuruteraan Kimia
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
language	English
topic	T Technology TP Chemical Technology
spellingShingle	T Technology TP Chemical Technology Ahmad, Anis Atikah Synthesis Of Bifunctional Activated Carbon From Gasification Residues For Malachite Green Dye And Atenolol Adsorption
description	The abundance of gasification char residues which contributed to solid waste management problem is one of the major concerns in biomass gasification industry. This study aims to synthesize activated carbon (AC) derived from gasification residues for malachite green (MG) dye and atenolol (ATN) adsorption via microwave- induced potassium hydroxide (KOH) and carbon dioxide (CO2) activation. Optimum preparation conditions for all ACs prepared were determined using response surface methodology (RSM). Gasified Glyricidia sepium woodchips-based AC (GGSWAC) showed the highest BET surface area and total pore volume of 633.30 m2/g and 0.34 cm3/g, respectively for MG removal; and 483.07 m2/g and 0.26 cm3/g , respectively for ATN adsorption. All adsorbents best fitted to the n-BET isotherm model, suggesting a multilayer adsorption for all systems. Gasified rubber tree root-based AC (GRTRAC) and GGSWAC showed higher maximum saturation capacity (Qe) of 259.49 and 120.57 mg/g, respectively for MG and ATN adsorption at 30ºC. The AC derived from gasified oil palm empty fruit bunches (GOPEFBAC) showed reasonably high removal of MG with Qe value of 219.39 mg/g. Kinetic studies showed that all system followed Avrami model with film diffusion was the rate-limiting step controlling MG removal, while film diffusion and chemisorption controlled the ATN adsorption. Thermodynamic study confirmed that all systems, except ATN-GRTRAC were endothermic in nature. For the column studies, the better correlation of breakthrough data shown by Thomas and Yoon-Nelson model. Results indicated that GGSWAC was the best adsorbent due to its high adsorption performance for both MG dye and ATN removal.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Ahmad, Anis Atikah
author_facet	Ahmad, Anis Atikah
author_sort	Ahmad, Anis Atikah
title	Synthesis Of Bifunctional Activated Carbon From Gasification Residues For Malachite Green Dye And Atenolol Adsorption
title_short	Synthesis Of Bifunctional Activated Carbon From Gasification Residues For Malachite Green Dye And Atenolol Adsorption
title_full	Synthesis Of Bifunctional Activated Carbon From Gasification Residues For Malachite Green Dye And Atenolol Adsorption
title_fullStr	Synthesis Of Bifunctional Activated Carbon From Gasification Residues For Malachite Green Dye And Atenolol Adsorption
title_full_unstemmed	Synthesis Of Bifunctional Activated Carbon From Gasification Residues For Malachite Green Dye And Atenolol Adsorption
title_sort	synthesis of bifunctional activated carbon from gasification residues for malachite green dye and atenolol adsorption
granting_institution	Universiti Sains Malaysia
granting_department	Pusat Pengajian Kejuruteraan Kimia
publishDate	2020
url	http://eprints.usm.my/50396/1/Synthesis%20Of%20Bifunctional%20Activated%20Carbon%20From%20Gasification%20Residues%20For%20Malachite%20Green%20Dye%20And%20Atenolol%20Adsorption.pdf
_version_	1747822034173296640

Synthesis Of Bifunctional Activated Carbon From Gasification Residues For Malachite Green Dye And Atenolol Adsorption

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