Removal of reactive black 5 dye using modified chitosan-pandan adsorbent

There has been increased interest of chitosan as a dye adsorbent. Nonetheless, the chitosan tend to form bonding between their monomer chains that result in a rigid structure which affects its capability for dye adsorption. This is why there are many recent studies on modified chitosan through vario...

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Main Author:	Razmi, Fatin Amirah
Format:	Thesis
Language:	English
Published:	2018
Subjects:	TP Chemical technology
Online Access:	http://eprints.utm.my/id/eprint/80976/1/FatinAmirahRazmiMFChE2018.pdf
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spelling	my-utm-ep.809762019-07-24T00:13:39Z Removal of reactive black 5 dye using modified chitosan-pandan adsorbent 2018-07 Razmi, Fatin Amirah TP Chemical technology There has been increased interest of chitosan as a dye adsorbent. Nonetheless, the chitosan tend to form bonding between their monomer chains that result in a rigid structure which affects its capability for dye adsorption. This is why there are many recent studies on modified chitosan through various modification in order to overcome the limitation. But, most modifications involve chemical additive agents as well as complex procedures that are conducted under strong conditions. Not much research consider low-cost organic materials as modifying agents. The purpose of this work is to investigate the performance of chitosan modified with pandan leaves in the adsorption of reactive black 5 (RB5). Modified chitosan-pandan (MCP) were synthesised by simple wet impregnation using polyphenols from extracted pandan oil under mild condition. MCP was characterised using the scanning electron microscopy, Fourier transform infrared spectroscopy and Brunauer-Emmett-Teller surface area analysis. A batch adsorption was conducted to study the effect of retention time (0-40 min), initial dye concentration (100-1000 mg/L), pH (3-11), temperature (25-80 °C) and dosage of adsorbent (0.01-1.0 g), and to determine the optimum process conditions. Kinetics, isotherm and thermodynamics evaluation were also performed on the adsorption data. The results of MCP adsorption showed outstanding dye removal, with almost 100% under the optimum conditions (30 min, 200 mg/L of RB5, pH 7 and 0.1 g of MCP). The adsorption data fitted well to the pseudo-second order model, indicating the role of chemisorption with the influence of intraparticle diffusion. For isotherm study, the data are best fitted to the Langmuir model (R2 = 0.95) with the maximum adsorption of 115.58 mg/g. A thermodynamics analysis showed that the adsorption was endothermic, occurred spontaneously and feasible. MCP is capable to be regenerated up to 5 times with percentage removal above 50% by only washing with distilled water. In conclusion, a satisfactory performance of MCP in RB5 removal was successfully demonstrated, can be used as a new promising adsorbent for the removal of dyes from textile wastewater. 2018-07 Thesis http://eprints.utm.my/id/eprint/80976/ http://eprints.utm.my/id/eprint/80976/1/FatinAmirahRazmiMFChE2018.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:119459 masters Universiti Teknologi Malaysia, Faculty of Chemical and Energy Engineering Faculty of Chemical and Energy Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Razmi, Fatin Amirah Removal of reactive black 5 dye using modified chitosan-pandan adsorbent
description	There has been increased interest of chitosan as a dye adsorbent. Nonetheless, the chitosan tend to form bonding between their monomer chains that result in a rigid structure which affects its capability for dye adsorption. This is why there are many recent studies on modified chitosan through various modification in order to overcome the limitation. But, most modifications involve chemical additive agents as well as complex procedures that are conducted under strong conditions. Not much research consider low-cost organic materials as modifying agents. The purpose of this work is to investigate the performance of chitosan modified with pandan leaves in the adsorption of reactive black 5 (RB5). Modified chitosan-pandan (MCP) were synthesised by simple wet impregnation using polyphenols from extracted pandan oil under mild condition. MCP was characterised using the scanning electron microscopy, Fourier transform infrared spectroscopy and Brunauer-Emmett-Teller surface area analysis. A batch adsorption was conducted to study the effect of retention time (0-40 min), initial dye concentration (100-1000 mg/L), pH (3-11), temperature (25-80 °C) and dosage of adsorbent (0.01-1.0 g), and to determine the optimum process conditions. Kinetics, isotherm and thermodynamics evaluation were also performed on the adsorption data. The results of MCP adsorption showed outstanding dye removal, with almost 100% under the optimum conditions (30 min, 200 mg/L of RB5, pH 7 and 0.1 g of MCP). The adsorption data fitted well to the pseudo-second order model, indicating the role of chemisorption with the influence of intraparticle diffusion. For isotherm study, the data are best fitted to the Langmuir model (R2 = 0.95) with the maximum adsorption of 115.58 mg/g. A thermodynamics analysis showed that the adsorption was endothermic, occurred spontaneously and feasible. MCP is capable to be regenerated up to 5 times with percentage removal above 50% by only washing with distilled water. In conclusion, a satisfactory performance of MCP in RB5 removal was successfully demonstrated, can be used as a new promising adsorbent for the removal of dyes from textile wastewater.
format	Thesis
qualification_level	Master's degree
author	Razmi, Fatin Amirah
author_facet	Razmi, Fatin Amirah
author_sort	Razmi, Fatin Amirah
title	Removal of reactive black 5 dye using modified chitosan-pandan adsorbent
title_short	Removal of reactive black 5 dye using modified chitosan-pandan adsorbent
title_full	Removal of reactive black 5 dye using modified chitosan-pandan adsorbent
title_fullStr	Removal of reactive black 5 dye using modified chitosan-pandan adsorbent
title_full_unstemmed	Removal of reactive black 5 dye using modified chitosan-pandan adsorbent
title_sort	removal of reactive black 5 dye using modified chitosan-pandan adsorbent
granting_institution	Universiti Teknologi Malaysia, Faculty of Chemical and Energy Engineering
granting_department	Faculty of Chemical and Energy Engineering
publishDate	2018
url	http://eprints.utm.my/id/eprint/80976/1/FatinAmirahRazmiMFChE2018.pdf
_version_	1747818288680796160

Removal of reactive black 5 dye using modified chitosan-pandan adsorbent

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