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

[Display omitted] 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...

Full description

Saved in:
Bibliographic Details
Published in:Journal of colloid and interface science 2017-07, Vol.497, p.413-421
Main Authors: AlOmar, Mohamed Khalid, Alsaadi, Mohammed Abdulhakim, Jassam, Taha M., Akib, Shatirah, Ali Hashim, Mohd
Format: Article
Language:English
Subjects:
Adsorption
Carbon nanotubes
Deep eutectic solvents
Functionalization
Mercury
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:[Display omitted] 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 isotherm models described the absorption of Hg2+ on the novel adsorbent with acceptable accuracy. The maximum adsorption capacity was found to be 177.76mg/g.
ISSN:0021-9797
1095-7103
DOI:10.1016/j.jcis.2017.03.014