Novel deep eutectic solvent-functionalized carbon nanotubes adsorbent for mercury removal from water

AlOmar, M.K., Alsaadi, M.A., Jassam, T.M., Akib, S. ORCID: 0000-0002-6538-0716 and Hashim, M.A., 2017. Novel deep eutectic solvent-functionalized carbon nanotubes adsorbent for mercury removal from water. Journal of Colloid and Interface Science, 497, pp. 413-421. ISSN 0021-9797

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Abstract

Due to the interestingly tolerated physicochemical properties of deep eutectic solvents (DESs), they are currently in the process of becoming widely used in many fields of science. Herein, we present a novel Hg2+ adsorbent that is based on carbon nanotubes (CNTs) functionalized by DESs. A DES formed from tetra-n-butyl ammonium bromide (TBAB) and glycerol (Gly) was used as a functionalization agent for CNTs. This novel adsorbent was characterized using Raman spectroscopy, Fourier transform infrared (FTIR) spectroscopy, XRD, FESEM, EDX, BET surface area, and Zeta potential. Later, Hg2+ adsorption conditions were optimized using response surface methodology (RSM). A pseudo-second order model accurately described the adsorption of Hg2+. The Langmuir and Freundlich isotherms models described the absorption of Hg2+ on the novel adsorbent with acceptable accuracy. The maximum adsorption capacity was found to be 177.76 mg/g.

Item Type: Journal article
Publication Title: Journal of Colloid and Interface Science
Creators: AlOmar, M.K., Alsaadi, M.A., Jassam, T.M., Akib, S. and Hashim, M.A.
Publisher: Elsevier Inc.
Date: 1 July 2017
Volume: 497
ISSN: 0021-9797
Identifiers:
NumberType
10.1016/j.jcis.2017.03.014DOI
S0021979717302564Publisher Item Identifier
Divisions: Schools > School of Architecture, Design and the Built Environment
Depositing User: Jill Tomkinson
Date Added: 21 Aug 2019 14:17
Last Modified: 21 Aug 2019 14:17
URI: http://irep.ntu.ac.uk/id/eprint/37413

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