ADSORPTION OF COOMASSIE BRILLIANT BLUE R-250 DYE ONTO NOVEL ACTIVATED CARBON PREPARED FROM NIGELLA SATIVA L. WASTE: EQUILIBRIUM, KINETICS AND THERMODYNAMICS RUNNING TITLE: ADSORPTION OF BRILLIANT BLUE DYE ONTO NIGELLA SATIVA L. WASTE ACTIVATED CARBON

In this paper a novel adsorbent was prepared from Nigella sativa L. waste and used for the removal of Coomassie Brilliant Blue dye from wastewater. The preparation of Nigella sativa waste carbon (NSWC) was achieved by adding concentrated sulfuric acid to the precursor material at an impregnation rat...

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Autores principales:	ABDEL-GHANI,NOUR T, EL-CHAGHABY,GHADIR A, RAWASH,EL-SHAIMAA A, LIMA,EDER C
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2017
Materias:	Adsorption coomassie brilliant blue dye chemical activation mechanism Nigella sativa L. waste
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072017000200016
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spelling	oai:scielo:S0717-970720170002000162017-06-30ADSORPTION OF COOMASSIE BRILLIANT BLUE R-250 DYE ONTO NOVEL ACTIVATED CARBON PREPARED FROM NIGELLA SATIVA L. WASTE: EQUILIBRIUM, KINETICS AND THERMODYNAMICS RUNNING TITLE: ADSORPTION OF BRILLIANT BLUE DYE ONTO NIGELLA SATIVA L. WASTE ACTIVATED CARBONABDEL-GHANI,NOUR TEL-CHAGHABY,GHADIR ARAWASH,EL-SHAIMAA ALIMA,EDER C Adsorption coomassie brilliant blue dye chemical activation mechanism Nigella sativa L. waste In this paper a novel adsorbent was prepared from Nigella sativa L. waste and used for the removal of Coomassie Brilliant Blue dye from wastewater. The preparation of Nigella sativa waste carbon (NSWC) was achieved by adding concentrated sulfuric acid to the precursor material at an impregnation ratio (1: 1) and the mixture was left overnight. The resulting material was washed with sodium bicarbonates and finally oven dried. The kinetics of coomassie brilliant blue adsorption onto NSWC was investigated by three kinetic models. The pseudo-second order model (R² = 0.99) was the best model fitted the experimental data. The equilibrium results revealed that Freundlich model was the best isotherm model fitted (R²= 0.994). Also the value of the Freundlich exponent (n) was found to be 1.174 suggesting the favorable dye adsorption onto NSWC. The thermodynamics results indicated negative values of ΔG proving the spontaneous nature of Brilliant Blue dye adsorption on NSWC. The exothermic nature of the adsorption was also confirmed by the negative value of change in enthalpy ΔH°. Also, the negative value of the activation entropy ΔS° demonstrates the decreased randomness at the solid-solution interface during adsorption. The present study results suggest the possible use of a waste such as Nigella sativa L. waste as a precursor for the development of a new cheap and efficient adsorbent that could be used in dyes removal from wastewater.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.62 n.2 20172017-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072017000200016en10.4067/S0717-97072017000200016
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Adsorption coomassie brilliant blue dye chemical activation mechanism Nigella sativa L. waste
spellingShingle	Adsorption coomassie brilliant blue dye chemical activation mechanism Nigella sativa L. waste ABDEL-GHANI,NOUR T EL-CHAGHABY,GHADIR A RAWASH,EL-SHAIMAA A LIMA,EDER C ADSORPTION OF COOMASSIE BRILLIANT BLUE R-250 DYE ONTO NOVEL ACTIVATED CARBON PREPARED FROM NIGELLA SATIVA L. WASTE: EQUILIBRIUM, KINETICS AND THERMODYNAMICS RUNNING TITLE: ADSORPTION OF BRILLIANT BLUE DYE ONTO NIGELLA SATIVA L. WASTE ACTIVATED CARBON
description	In this paper a novel adsorbent was prepared from Nigella sativa L. waste and used for the removal of Coomassie Brilliant Blue dye from wastewater. The preparation of Nigella sativa waste carbon (NSWC) was achieved by adding concentrated sulfuric acid to the precursor material at an impregnation ratio (1: 1) and the mixture was left overnight. The resulting material was washed with sodium bicarbonates and finally oven dried. The kinetics of coomassie brilliant blue adsorption onto NSWC was investigated by three kinetic models. The pseudo-second order model (R² = 0.99) was the best model fitted the experimental data. The equilibrium results revealed that Freundlich model was the best isotherm model fitted (R²= 0.994). Also the value of the Freundlich exponent (n) was found to be 1.174 suggesting the favorable dye adsorption onto NSWC. The thermodynamics results indicated negative values of ΔG proving the spontaneous nature of Brilliant Blue dye adsorption on NSWC. The exothermic nature of the adsorption was also confirmed by the negative value of change in enthalpy ΔH°. Also, the negative value of the activation entropy ΔS° demonstrates the decreased randomness at the solid-solution interface during adsorption. The present study results suggest the possible use of a waste such as Nigella sativa L. waste as a precursor for the development of a new cheap and efficient adsorbent that could be used in dyes removal from wastewater.
author	ABDEL-GHANI,NOUR T EL-CHAGHABY,GHADIR A RAWASH,EL-SHAIMAA A LIMA,EDER C
author_facet	ABDEL-GHANI,NOUR T EL-CHAGHABY,GHADIR A RAWASH,EL-SHAIMAA A LIMA,EDER C
author_sort	ABDEL-GHANI,NOUR T
title	ADSORPTION OF COOMASSIE BRILLIANT BLUE R-250 DYE ONTO NOVEL ACTIVATED CARBON PREPARED FROM NIGELLA SATIVA L. WASTE: EQUILIBRIUM, KINETICS AND THERMODYNAMICS RUNNING TITLE: ADSORPTION OF BRILLIANT BLUE DYE ONTO NIGELLA SATIVA L. WASTE ACTIVATED CARBON
title_short	ADSORPTION OF COOMASSIE BRILLIANT BLUE R-250 DYE ONTO NOVEL ACTIVATED CARBON PREPARED FROM NIGELLA SATIVA L. WASTE: EQUILIBRIUM, KINETICS AND THERMODYNAMICS RUNNING TITLE: ADSORPTION OF BRILLIANT BLUE DYE ONTO NIGELLA SATIVA L. WASTE ACTIVATED CARBON
title_full	ADSORPTION OF COOMASSIE BRILLIANT BLUE R-250 DYE ONTO NOVEL ACTIVATED CARBON PREPARED FROM NIGELLA SATIVA L. WASTE: EQUILIBRIUM, KINETICS AND THERMODYNAMICS RUNNING TITLE: ADSORPTION OF BRILLIANT BLUE DYE ONTO NIGELLA SATIVA L. WASTE ACTIVATED CARBON
title_fullStr	ADSORPTION OF COOMASSIE BRILLIANT BLUE R-250 DYE ONTO NOVEL ACTIVATED CARBON PREPARED FROM NIGELLA SATIVA L. WASTE: EQUILIBRIUM, KINETICS AND THERMODYNAMICS RUNNING TITLE: ADSORPTION OF BRILLIANT BLUE DYE ONTO NIGELLA SATIVA L. WASTE ACTIVATED CARBON
title_full_unstemmed	ADSORPTION OF COOMASSIE BRILLIANT BLUE R-250 DYE ONTO NOVEL ACTIVATED CARBON PREPARED FROM NIGELLA SATIVA L. WASTE: EQUILIBRIUM, KINETICS AND THERMODYNAMICS RUNNING TITLE: ADSORPTION OF BRILLIANT BLUE DYE ONTO NIGELLA SATIVA L. WASTE ACTIVATED CARBON
title_sort	adsorption of coomassie brilliant blue r-250 dye onto novel activated carbon prepared from nigella sativa l. waste: equilibrium, kinetics and thermodynamics running title: adsorption of brilliant blue dye onto nigella sativa l. waste activated carbon
publisher	Sociedad Chilena de Química
publishDate	2017
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072017000200016
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ADSORPTION OF COOMASSIE BRILLIANT BLUE R-250 DYE ONTO NOVEL ACTIVATED CARBON PREPARED FROM NIGELLA SATIVA L. WASTE: EQUILIBRIUM, KINETICS AND THERMODYNAMICS RUNNING TITLE: ADSORPTION OF BRILLIANT BLUE DYE ONTO NIGELLA SATIVA L. WASTE ACTIVATED CARBON

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