Coconut shell derived ZnCl2 activated carbon for malachite green dye removal

The coconut-based agricultural wastes have gained wide attention as an alternative adsorbent for the removal of diverse pollutants from the industrial effluents. This paper presents the zinc chloride activation of adsorbent carbon and the utilization as an adsorbent for the removal of malachite gree...

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Autores principales:	R. Sangeetha piriya, Rajamani M. Jayabalakrishnan, M. Maheswari, Kovilpillai Boomiraj, Sadish Oumabady
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	coconut shell isotherm study kinetics malachite green adsorption zncl2 activation Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/2b6a65fd379d4e91be2e11df816fce7d
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spelling	oai:doaj.org-article:2b6a65fd379d4e91be2e11df816fce7d2021-11-06T10:51:00ZCoconut shell derived ZnCl2 activated carbon for malachite green dye removal0273-12231996-973210.2166/wst.2021.050https://doaj.org/article/2b6a65fd379d4e91be2e11df816fce7d2021-03-01T00:00:00Zhttp://wst.iwaponline.com/content/83/5/1167https://doaj.org/toc/0273-1223https://doaj.org/toc/1996-9732The coconut-based agricultural wastes have gained wide attention as an alternative adsorbent for the removal of diverse pollutants from the industrial effluents. This paper presents the zinc chloride activation of adsorbent carbon and the utilization as an adsorbent for the removal of malachite green dye from aqueous solution. The characterisation of activated carbon was performed to get an insight into the adsorption mechanism. The ZnCl2 activated carbon acquired a higher specific surface area (544.66 m2 g−1) and stability (−32.6 mV). The impact of process parameters including contact time (20–220 min) and initial dye concentration (20–80 mg L−1) were evaluated on the effectiveness of activated carbon for dye removal. The results concluded that zinc chloride activated carbon showed a significant dye adsorption (39.683 mg g−1) at an initial concentration of 20 mg L−1 after 3 hours. Based on the correlation coefficient (R2), the Freundlich isotherm model (0.978–0.998) was best fitted for the experimental data followed by the intraparticle diffusion model (0.88–0.929) as the most appropriate model for malachite green dye removal. Additionally, the energy and thermogravimetric analysis portrayed the suitability of the carbon material to be used as an energy alternative to coal.R. Sangeetha piriyaRajamani M. JayabalakrishnanM. MaheswariKovilpillai BoomirajSadish OumabadyIWA Publishingarticlecoconut shellisotherm studykineticsmalachite green adsorptionzncl2 activationEnvironmental technology. Sanitary engineeringTD1-1066ENWater Science and Technology, Vol 83, Iss 5, Pp 1167-1182 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	coconut shell isotherm study kinetics malachite green adsorption zncl2 activation Environmental technology. Sanitary engineering TD1-1066
spellingShingle	coconut shell isotherm study kinetics malachite green adsorption zncl2 activation Environmental technology. Sanitary engineering TD1-1066 R. Sangeetha piriya Rajamani M. Jayabalakrishnan M. Maheswari Kovilpillai Boomiraj Sadish Oumabady Coconut shell derived ZnCl2 activated carbon for malachite green dye removal
description	The coconut-based agricultural wastes have gained wide attention as an alternative adsorbent for the removal of diverse pollutants from the industrial effluents. This paper presents the zinc chloride activation of adsorbent carbon and the utilization as an adsorbent for the removal of malachite green dye from aqueous solution. The characterisation of activated carbon was performed to get an insight into the adsorption mechanism. The ZnCl2 activated carbon acquired a higher specific surface area (544.66 m2 g−1) and stability (−32.6 mV). The impact of process parameters including contact time (20–220 min) and initial dye concentration (20–80 mg L−1) were evaluated on the effectiveness of activated carbon for dye removal. The results concluded that zinc chloride activated carbon showed a significant dye adsorption (39.683 mg g−1) at an initial concentration of 20 mg L−1 after 3 hours. Based on the correlation coefficient (R2), the Freundlich isotherm model (0.978–0.998) was best fitted for the experimental data followed by the intraparticle diffusion model (0.88–0.929) as the most appropriate model for malachite green dye removal. Additionally, the energy and thermogravimetric analysis portrayed the suitability of the carbon material to be used as an energy alternative to coal.
format	article
author	R. Sangeetha piriya Rajamani M. Jayabalakrishnan M. Maheswari Kovilpillai Boomiraj Sadish Oumabady
author_facet	R. Sangeetha piriya Rajamani M. Jayabalakrishnan M. Maheswari Kovilpillai Boomiraj Sadish Oumabady
author_sort	R. Sangeetha piriya
title	Coconut shell derived ZnCl2 activated carbon for malachite green dye removal
title_short	Coconut shell derived ZnCl2 activated carbon for malachite green dye removal
title_full	Coconut shell derived ZnCl2 activated carbon for malachite green dye removal
title_fullStr	Coconut shell derived ZnCl2 activated carbon for malachite green dye removal
title_full_unstemmed	Coconut shell derived ZnCl2 activated carbon for malachite green dye removal
title_sort	coconut shell derived zncl2 activated carbon for malachite green dye removal
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/2b6a65fd379d4e91be2e11df816fce7d
work_keys_str_mv	AT rsangeethapiriya coconutshellderivedzncl2activatedcarbonformalachitegreendyeremoval AT rajamanimjayabalakrishnan coconutshellderivedzncl2activatedcarbonformalachitegreendyeremoval AT mmaheswari coconutshellderivedzncl2activatedcarbonformalachitegreendyeremoval AT kovilpillaiboomiraj coconutshellderivedzncl2activatedcarbonformalachitegreendyeremoval AT sadishoumabady coconutshellderivedzncl2activatedcarbonformalachitegreendyeremoval
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Coconut shell derived ZnCl2 activated carbon for malachite green dye removal

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