TY - JOUR
T1 - Novel deep eutectic solvent-functionalized carbon nanotubes adsorbent for mercury removal from water
AU - Alomar, Mohamed Khalid
AU - Alsaadi, Mohammed Abdulhakim
AU - Jassam, Taha M.
AU - Mohamed Akib, Shatirah
AU - Hashim, Mohd Ali
AU - Schwandt, Carsten
PY - 2017/7/1
Y1 - 2017/7/1
N2 - 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 177.76 mg/g.
AB - 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 177.76 mg/g.
U2 - 10.1016/j.jcis.2017.03.014
DO - 10.1016/j.jcis.2017.03.014
M3 - Article
C2 - 28314146
SN - 0021-9797
VL - 497
SP - 413
EP - 421
JO - Journal of Colloid and Interface Science
JF - Journal of Colloid and Interface Science
ER -