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

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    Author
    Alagappan, Perry N.; Heimann, Jessica; Morrow, Lauren; Andreoli, Enrico; Barron, Andrew R.
    Date
    2017
    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.
    Citation
    Alagappan, Perry N., Heimann, Jessica, Morrow, Lauren, et al.. "Easily Regenerated Readily Deployable Absorbent for Heavy Metal Removal from Contaminated Water." Scientific Reports, 7, (2017) Springer Nature: https://doi.org/10.1038/s41598-017-06734-7.
    Published Version
    https://doi.org/10.1038/s41598-017-06734-7
    Type
    Journal article
    Publisher
    Springer Nature
    Citable link to this page
    https://hdl.handle.net/1911/96632
    Rights
    This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.
    Link to License
    https://creativecommons.org/licenses/by/4.0/
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    • Chemistry Publications [705]
    • Faculty Publications [5504]
    • Materials Science and NanoEngineering Publications [404]

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    Home | FAQ | Contact Us | Privacy Notice | Accessibility Statement
    Managed by the Digital Scholarship Services at Fondren Library, Rice University
    Physical Address: 6100 Main Street, Houston, Texas 77005
    Mailing Address: MS-44, P.O.BOX 1892, Houston, Texas 77251-1892
    Site Map