Easily Regenerated Readily Deployable Absorbent for Heavy Metal Removal from Contaminated Water

Abstract Although clean and abundant water is the keystone of thriving communities, increasing demand and volatile climate patterns are depleting rivers and aquifers. Moreover, the quality of such water sources is threatened by noxious contaminants, of which heavy metals represents an area of growin...

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Auteurs principaux:	Perry N. Alagappan, Jessica Heimann, Lauren Morrow, Enrico Andreoli, Andrew R. Barron
Format:	article
Langue:	EN
Publié:	Nature Portfolio 2017
Sujets:	Medicine R Science Q
Accès en ligne:	https://doaj.org/article/0e3e107be7924327ab92643f18eb91dd
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spelling	oai:doaj.org-article:0e3e107be7924327ab92643f18eb91dd2021-12-02T11:41:22ZEasily Regenerated Readily Deployable Absorbent for Heavy Metal Removal from Contaminated Water10.1038/s41598-017-06734-72045-2322https://doaj.org/article/0e3e107be7924327ab92643f18eb91dd2017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-06734-7https://doaj.org/toc/2045-2322Abstract Although clean and abundant water is the keystone of thriving communities, increasing demand and volatile climate patterns are depleting rivers and aquifers. Moreover, the quality of such water sources is threatened by noxious contaminants, of which heavy metals represents an area of growing concern. Recently, graphene oxide (GO) has been suggested as an adsorbent; however, a support is desirable to ensure a high surface area and an immobile phase. Herein, we described the preparation and characterization of a supported-epoxidized carbon nanotube (SENT) via the growth of multi walled carbon nanotubes (MWNTs) onto a quartz substrate. Subsequent epoxidation provides sufficient functionality to enable adsorbent of heavy metals (Cd2+, Co2+, Cu2+, Hg2+, Ni2+, and Pb2+) from aqueous solution with initial concentrations (60–6000 ppm) chosen to simulate high industrial wastewater contamination. The SENT adsorption efficiency is >99.4% for all metals and the saturation concentration is significantly greater than observed for either GO or acid treated MWNTs. The SENT adsorbent may be readily regenerated under mild conditions using a globally available household chemical, vinegar. 1 g of SENT has the potential to treat 83,000 L of contaminated water down to WHO limits which would be sufficient for 11,000 people.Perry N. AlagappanJessica HeimannLauren MorrowEnrico AndreoliAndrew R. BarronNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-7 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Perry N. Alagappan Jessica Heimann Lauren Morrow Enrico Andreoli Andrew R. Barron Easily Regenerated Readily Deployable Absorbent for Heavy Metal Removal from Contaminated Water
description	Abstract Although clean and abundant water is the keystone of thriving communities, increasing demand and volatile climate patterns are depleting rivers and aquifers. Moreover, the quality of such water sources is threatened by noxious contaminants, of which heavy metals represents an area of growing concern. Recently, graphene oxide (GO) has been suggested as an adsorbent; however, a support is desirable to ensure a high surface area and an immobile phase. Herein, we described the preparation and characterization of a supported-epoxidized carbon nanotube (SENT) via the growth of multi walled carbon nanotubes (MWNTs) onto a quartz substrate. Subsequent epoxidation provides sufficient functionality to enable adsorbent of heavy metals (Cd2+, Co2+, Cu2+, Hg2+, Ni2+, and Pb2+) from aqueous solution with initial concentrations (60–6000 ppm) chosen to simulate high industrial wastewater contamination. The SENT adsorption efficiency is >99.4% for all metals and the saturation concentration is significantly greater than observed for either GO or acid treated MWNTs. The SENT adsorbent may be readily regenerated under mild conditions using a globally available household chemical, vinegar. 1 g of SENT has the potential to treat 83,000 L of contaminated water down to WHO limits which would be sufficient for 11,000 people.
format	article
author	Perry N. Alagappan Jessica Heimann Lauren Morrow Enrico Andreoli Andrew R. Barron
author_facet	Perry N. Alagappan Jessica Heimann Lauren Morrow Enrico Andreoli Andrew R. Barron
author_sort	Perry N. Alagappan
title	Easily Regenerated Readily Deployable Absorbent for Heavy Metal Removal from Contaminated Water
title_short	Easily Regenerated Readily Deployable Absorbent for Heavy Metal Removal from Contaminated Water
title_full	Easily Regenerated Readily Deployable Absorbent for Heavy Metal Removal from Contaminated Water
title_fullStr	Easily Regenerated Readily Deployable Absorbent for Heavy Metal Removal from Contaminated Water
title_full_unstemmed	Easily Regenerated Readily Deployable Absorbent for Heavy Metal Removal from Contaminated Water
title_sort	easily regenerated readily deployable absorbent for heavy metal removal from contaminated water
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/0e3e107be7924327ab92643f18eb91dd
work_keys_str_mv	AT perrynalagappan easilyregeneratedreadilydeployableabsorbentforheavymetalremovalfromcontaminatedwater AT jessicaheimann easilyregeneratedreadilydeployableabsorbentforheavymetalremovalfromcontaminatedwater AT laurenmorrow easilyregeneratedreadilydeployableabsorbentforheavymetalremovalfromcontaminatedwater AT enricoandreoli easilyregeneratedreadilydeployableabsorbentforheavymetalremovalfromcontaminatedwater AT andrewrbarron easilyregeneratedreadilydeployableabsorbentforheavymetalremovalfromcontaminatedwater
_version_	1718395384891441152

Easily Regenerated Readily Deployable Absorbent for Heavy Metal Removal from Contaminated Water

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