| Literature DB >> 28314146 |
Mohamed Khalid AlOmar1, Mohammed Abdulhakim Alsaadi2, Taha M Jassam3, Shatirah Akib4, Mohd Ali Hashim5.
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 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.Entities:
Keywords: Adsorption; Carbon nanotubes; Deep eutectic solvents; Functionalization; Mercury
Year: 2017 PMID： 28314146 DOI： 10.1016/j.jcis.2017.03.014
Source DB: PubMed Journal: J Colloid Interface Sci ISSN： 0021-9797 Impact factor: 8.128