The use of spent coffee grounds and spent green tea leaves for the removal of cationic dyes from aqueous solutions

Abstract This study aimed to examine sorption effectiveness of cationic dyes: Basic Red 46 (BR46) and Basic Violet 10 (BV10) onto spent coffee ground (CG) and spent green tea leaves (GTL). The scope of the study included, i.a.: sorbent FTIR spectra analysis, determination of pH effect on dye sorptio...

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Autores principales:	Tomasz Jóźwiak, Urszula Filipkowska, Joanna Struk-Sokołowska, Kamil Bryszewski, Karol Trzciński, Joanna Kuźma, Monika Ślimkowska
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/047938a7e00743a9b741bd8d1e1e8785
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spelling	oai:doaj.org-article:047938a7e00743a9b741bd8d1e1e87852021-12-02T15:38:12ZThe use of spent coffee grounds and spent green tea leaves for the removal of cationic dyes from aqueous solutions10.1038/s41598-021-89095-62045-2322https://doaj.org/article/047938a7e00743a9b741bd8d1e1e87852021-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-89095-6https://doaj.org/toc/2045-2322Abstract This study aimed to examine sorption effectiveness of cationic dyes: Basic Red 46 (BR46) and Basic Violet 10 (BV10) onto spent coffee ground (CG) and spent green tea leaves (GTL). The scope of the study included, i.a.: sorbent FTIR spectra analysis, determination of pH effect on dye sorption effectiveness, analysis of dye sorption kinetics, and determination of maximal sorption capacity of the sorbents. The effectiveness of BR46 sorption on the sorbents tested was the highest at pH 6 and that of BV10 at pH 3. Both sorbents caused changes in solution pH during the sorption process, due to the system tending to reach the pH value approximating the pHZPC (pHPZC = 7.55 for CG and pHPZC = 7.05 for GTL). The time needed to reach BR46 and BV10 sorption equilibrium onto CG and GTL ranged from 180 to 240 min. The intramolecular diffusion model demonstrated that the sorption of cationic dyes onto CG and GTL proceeded in three phases differing in the intensity and duration. The maximal sorption capacity of CG reached 179.4 mg/g for BR46 and 59.3 mg/g for BV10. The sorption capacity of GTL was lower and reached 58.0 mg/g for BR46 and 26.7 mg/g for BV10.Tomasz JóźwiakUrszula FilipkowskaJoanna Struk-SokołowskaKamil BryszewskiKarol TrzcińskiJoanna KuźmaMonika ŚlimkowskaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Tomasz Jóźwiak Urszula Filipkowska Joanna Struk-Sokołowska Kamil Bryszewski Karol Trzciński Joanna Kuźma Monika Ślimkowska The use of spent coffee grounds and spent green tea leaves for the removal of cationic dyes from aqueous solutions
description	Abstract This study aimed to examine sorption effectiveness of cationic dyes: Basic Red 46 (BR46) and Basic Violet 10 (BV10) onto spent coffee ground (CG) and spent green tea leaves (GTL). The scope of the study included, i.a.: sorbent FTIR spectra analysis, determination of pH effect on dye sorption effectiveness, analysis of dye sorption kinetics, and determination of maximal sorption capacity of the sorbents. The effectiveness of BR46 sorption on the sorbents tested was the highest at pH 6 and that of BV10 at pH 3. Both sorbents caused changes in solution pH during the sorption process, due to the system tending to reach the pH value approximating the pHZPC (pHPZC = 7.55 for CG and pHPZC = 7.05 for GTL). The time needed to reach BR46 and BV10 sorption equilibrium onto CG and GTL ranged from 180 to 240 min. The intramolecular diffusion model demonstrated that the sorption of cationic dyes onto CG and GTL proceeded in three phases differing in the intensity and duration. The maximal sorption capacity of CG reached 179.4 mg/g for BR46 and 59.3 mg/g for BV10. The sorption capacity of GTL was lower and reached 58.0 mg/g for BR46 and 26.7 mg/g for BV10.
format	article
author	Tomasz Jóźwiak Urszula Filipkowska Joanna Struk-Sokołowska Kamil Bryszewski Karol Trzciński Joanna Kuźma Monika Ślimkowska
author_facet	Tomasz Jóźwiak Urszula Filipkowska Joanna Struk-Sokołowska Kamil Bryszewski Karol Trzciński Joanna Kuźma Monika Ślimkowska
author_sort	Tomasz Jóźwiak
title	The use of spent coffee grounds and spent green tea leaves for the removal of cationic dyes from aqueous solutions
title_short	The use of spent coffee grounds and spent green tea leaves for the removal of cationic dyes from aqueous solutions
title_full	The use of spent coffee grounds and spent green tea leaves for the removal of cationic dyes from aqueous solutions
title_fullStr	The use of spent coffee grounds and spent green tea leaves for the removal of cationic dyes from aqueous solutions
title_full_unstemmed	The use of spent coffee grounds and spent green tea leaves for the removal of cationic dyes from aqueous solutions
title_sort	use of spent coffee grounds and spent green tea leaves for the removal of cationic dyes from aqueous solutions
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/047938a7e00743a9b741bd8d1e1e8785
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The use of spent coffee grounds and spent green tea leaves for the removal of cationic dyes from aqueous solutions

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