An Adsorption Kinetic and Thermodynamic Study of Dyeing Betacyanin Extract from Dragon Fruit Skin onto the Spun Silk and Acrylic Yarn

Background: Dragon fruit is one of the plant that can be extracted to be a natural dye. This fruit is contained a betacyanin pigment which can be dyed on to the textile fibers. The natural dye was extracted using water extraction. The betacyanin pigment was applied onto the spun silk and acrylic yar...

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Main Authors:	Norasiha, Hamid, Mimi Sakinah, A. M.
Format:	Article
Language:	English
Published:	AENSI Publishing 2017
Subjects:	TP Chemical technology
Online Access:	http://umpir.ump.edu.my/id/eprint/16956/ http://umpir.ump.edu.my/id/eprint/16956/ http://umpir.ump.edu.my/id/eprint/16956/1/ftech-2017-mimi-Adsorption%20Kinetic%20and%20Thermodynamic.pdf

id	ump-16956
recordtype	eprints
spelling	ump-169562017-11-06T08:11:43Z http://umpir.ump.edu.my/id/eprint/16956/ An Adsorption Kinetic and Thermodynamic Study of Dyeing Betacyanin Extract from Dragon Fruit Skin onto the Spun Silk and Acrylic Yarn Norasiha, Hamid Mimi Sakinah, A. M. TP Chemical technology Background: Dragon fruit is one of the plant that can be extracted to be a natural dye. This fruit is contained a betacyanin pigment which can be dyed on to the textile fibers. The natural dye was extracted using water extraction. The betacyanin pigment was applied onto the spun silk and acrylic yarn. Two kinetic models, the pseudo first order model and pseudo-second order model were selected to follow the adsorption process. Kinetic parameters such as rate constant, equilibrium capacities and correlation coefficients for each kinetic equation were calculated and discussed. Objective: The main objective of this study is to evaluate the adsorption and kinetic parameters of dyeing betacyanin pigment extract from dragon fruit skin onto spun silk and acrylic yarn. Result: It was shown that the adsorption betacyanin pigment onto spun silk and acrylic yarn could be described by the pseudo-second order. The rate of constant was increased as temperature increased. The activation energy calculated was 55.7kJ/mol for spun silk and 44.5kJ/mol indicated that the adsorption process was controlled by chemisorption. The thermodynamic parameters such as ΔG°, ΔH° and ΔS° were also calculated. The negative values of ΔG° and ΔH° obtained indicated that the process of adsorption of betacyanin pigment adsorbed onto spun silk and acrylic yarn were spontaneous and exothermic. The values of ΔS° is negative indicated that the randomness of dye molecule distribution was increased as temperature increased. Conclusion: It is concluded that the adsorption of betacyanin pigment onto spun silk and acrylic yarn were favorable and controlled by chemisorption process based on the kinetic and thermodynamic parameters that had been determined. AENSI Publishing 2017-03 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/16956/1/ftech-2017-mimi-Adsorption%20Kinetic%20and%20Thermodynamic.pdf Norasiha, Hamid and Mimi Sakinah, A. M. (2017) An Adsorption Kinetic and Thermodynamic Study of Dyeing Betacyanin Extract from Dragon Fruit Skin onto the Spun Silk and Acrylic Yarn. Australian Journal of Basic and Applied Sciences, 11 (4). pp. 33-41. ISSN 1991-8178 http://ajbasweb.com/old/ajbas/2017/March/33-41.pdf
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Norasiha, Hamid Mimi Sakinah, A. M. An Adsorption Kinetic and Thermodynamic Study of Dyeing Betacyanin Extract from Dragon Fruit Skin onto the Spun Silk and Acrylic Yarn
description	Background: Dragon fruit is one of the plant that can be extracted to be a natural dye. This fruit is contained a betacyanin pigment which can be dyed on to the textile fibers. The natural dye was extracted using water extraction. The betacyanin pigment was applied onto the spun silk and acrylic yarn. Two kinetic models, the pseudo first order model and pseudo-second order model were selected to follow the adsorption process. Kinetic parameters such as rate constant, equilibrium capacities and correlation coefficients for each kinetic equation were calculated and discussed. Objective: The main objective of this study is to evaluate the adsorption and kinetic parameters of dyeing betacyanin pigment extract from dragon fruit skin onto spun silk and acrylic yarn. Result: It was shown that the adsorption betacyanin pigment onto spun silk and acrylic yarn could be described by the pseudo-second order. The rate of constant was increased as temperature increased. The activation energy calculated was 55.7kJ/mol for spun silk and 44.5kJ/mol indicated that the adsorption process was controlled by chemisorption. The thermodynamic parameters such as ΔG°, ΔH° and ΔS° were also calculated. The negative values of ΔG° and ΔH° obtained indicated that the process of adsorption of betacyanin pigment adsorbed onto spun silk and acrylic yarn were spontaneous and exothermic. The values of ΔS° is negative indicated that the randomness of dye molecule distribution was increased as temperature increased. Conclusion: It is concluded that the adsorption of betacyanin pigment onto spun silk and acrylic yarn were favorable and controlled by chemisorption process based on the kinetic and thermodynamic parameters that had been determined.
format	Article
author	Norasiha, Hamid Mimi Sakinah, A. M.
author_facet	Norasiha, Hamid Mimi Sakinah, A. M.
author_sort	Norasiha, Hamid
title	An Adsorption Kinetic and Thermodynamic Study of Dyeing Betacyanin Extract from Dragon Fruit Skin onto the Spun Silk and Acrylic Yarn
title_short	An Adsorption Kinetic and Thermodynamic Study of Dyeing Betacyanin Extract from Dragon Fruit Skin onto the Spun Silk and Acrylic Yarn
title_full	An Adsorption Kinetic and Thermodynamic Study of Dyeing Betacyanin Extract from Dragon Fruit Skin onto the Spun Silk and Acrylic Yarn
title_fullStr	An Adsorption Kinetic and Thermodynamic Study of Dyeing Betacyanin Extract from Dragon Fruit Skin onto the Spun Silk and Acrylic Yarn
title_full_unstemmed	An Adsorption Kinetic and Thermodynamic Study of Dyeing Betacyanin Extract from Dragon Fruit Skin onto the Spun Silk and Acrylic Yarn
title_sort	adsorption kinetic and thermodynamic study of dyeing betacyanin extract from dragon fruit skin onto the spun silk and acrylic yarn
publisher	AENSI Publishing
publishDate	2017
url	http://umpir.ump.edu.my/id/eprint/16956/ http://umpir.ump.edu.my/id/eprint/16956/ http://umpir.ump.edu.my/id/eprint/16956/1/ftech-2017-mimi-Adsorption%20Kinetic%20and%20Thermodynamic.pdf
first_indexed	2023-09-18T22:23:05Z
last_indexed	2023-09-18T22:23:05Z
_version_	1777415786502029312

An Adsorption Kinetic and Thermodynamic Study of Dyeing Betacyanin Extract from Dragon Fruit Skin onto the Spun Silk and Acrylic Yarn

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