Implementation of concurrent electrolytic generation of two homogeneous mediators under widened potential conditions to facilitate removal of air-pollutants

Abstract Electro-scrubbing is being developed as a futuristic technology for the removal of air-pollutants. To date, only one homogeneous mediator for the removal of air pollutants has been generated in each experiment using a divided electrolytic flow cell in an acidic medium. This paper reports th...

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Autores principales:	Muthuraman Govindan, Alan M. Bond, Il-Shik Moon
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/06efc7d4c0ee4e8488e5c07d740ba3bf
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spelling	oai:doaj.org-article:06efc7d4c0ee4e8488e5c07d740ba3bf2021-12-02T16:06:29ZImplementation of concurrent electrolytic generation of two homogeneous mediators under widened potential conditions to facilitate removal of air-pollutants10.1038/s41598-017-00058-22045-2322https://doaj.org/article/06efc7d4c0ee4e8488e5c07d740ba3bf2017-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-00058-2https://doaj.org/toc/2045-2322Abstract Electro-scrubbing is being developed as a futuristic technology for the removal of air-pollutants. To date, only one homogeneous mediator for the removal of air pollutants has been generated in each experiment using a divided electrolytic flow cell in an acidic medium. This paper reports the concurrent generation of two homogenous mediators, one at the anodic half-cell containing an acidic solution and the other at the cathodic half-cell containing a basic solution. The concept was inspired by the change in pH that occurs during water electrolysis in a divided cell. A 10 M KOH electrolyte medium assisted in the electrochemical generation of low valent 14% Co1+ ([CoI(CN)5]4−) mediator formed from reduction of [CoII(CN)5]3− which was accompanied by a change in the solution 'oxidation reduction potential' (ORP) of −1.05 V Simultaneously, 41% of Co3+ was generated from oxidation of CoIISO4 in the anodic half-cell. No change in the solution ORP was observed at the cathodic half-cell when both half-cells contain 5 M H2SO4, and Co3+ was formed in the anodic half-cell. An electro-scrubbing approach based on the above principles was developed and tested on gaseous-pollutants, CH3CHO and CCl4, by Co3+ and Co1+, respectively, with 90 and 96% removal achieved, respectively.Muthuraman GovindanAlan M. BondIl-Shik MoonNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Muthuraman Govindan Alan M. Bond Il-Shik Moon Implementation of concurrent electrolytic generation of two homogeneous mediators under widened potential conditions to facilitate removal of air-pollutants
description	Abstract Electro-scrubbing is being developed as a futuristic technology for the removal of air-pollutants. To date, only one homogeneous mediator for the removal of air pollutants has been generated in each experiment using a divided electrolytic flow cell in an acidic medium. This paper reports the concurrent generation of two homogenous mediators, one at the anodic half-cell containing an acidic solution and the other at the cathodic half-cell containing a basic solution. The concept was inspired by the change in pH that occurs during water electrolysis in a divided cell. A 10 M KOH electrolyte medium assisted in the electrochemical generation of low valent 14% Co1+ ([CoI(CN)5]4−) mediator formed from reduction of [CoII(CN)5]3− which was accompanied by a change in the solution 'oxidation reduction potential' (ORP) of −1.05 V Simultaneously, 41% of Co3+ was generated from oxidation of CoIISO4 in the anodic half-cell. No change in the solution ORP was observed at the cathodic half-cell when both half-cells contain 5 M H2SO4, and Co3+ was formed in the anodic half-cell. An electro-scrubbing approach based on the above principles was developed and tested on gaseous-pollutants, CH3CHO and CCl4, by Co3+ and Co1+, respectively, with 90 and 96% removal achieved, respectively.
format	article
author	Muthuraman Govindan Alan M. Bond Il-Shik Moon
author_facet	Muthuraman Govindan Alan M. Bond Il-Shik Moon
author_sort	Muthuraman Govindan
title	Implementation of concurrent electrolytic generation of two homogeneous mediators under widened potential conditions to facilitate removal of air-pollutants
title_short	Implementation of concurrent electrolytic generation of two homogeneous mediators under widened potential conditions to facilitate removal of air-pollutants
title_full	Implementation of concurrent electrolytic generation of two homogeneous mediators under widened potential conditions to facilitate removal of air-pollutants
title_fullStr	Implementation of concurrent electrolytic generation of two homogeneous mediators under widened potential conditions to facilitate removal of air-pollutants
title_full_unstemmed	Implementation of concurrent electrolytic generation of two homogeneous mediators under widened potential conditions to facilitate removal of air-pollutants
title_sort	implementation of concurrent electrolytic generation of two homogeneous mediators under widened potential conditions to facilitate removal of air-pollutants
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/06efc7d4c0ee4e8488e5c07d740ba3bf
work_keys_str_mv	AT muthuramangovindan implementationofconcurrentelectrolyticgenerationoftwohomogeneousmediatorsunderwidenedpotentialconditionstofacilitateremovalofairpollutants AT alanmbond implementationofconcurrentelectrolyticgenerationoftwohomogeneousmediatorsunderwidenedpotentialconditionstofacilitateremovalofairpollutants AT ilshikmoon implementationofconcurrentelectrolyticgenerationoftwohomogeneousmediatorsunderwidenedpotentialconditionstofacilitateremovalofairpollutants
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Implementation of concurrent electrolytic generation of two homogeneous mediators under widened potential conditions to facilitate removal of air-pollutants

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