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@article{ART002695590},
author={Alimohammady Mobina and Ghaemi Mehdi},
title={Adsorptive removal of Hg2+ from aqueous solutions using amino phenyl-pyrazole-functionalized graphene oxide},
journal={Carbon Letters},
issn={1976-4251},
year={2020},
volume={30},
number={5},
pages={493-508},
doi={10.1007/s42823-019-00119-8}

TY - JOUR
AU - Alimohammady Mobina
AU - Ghaemi Mehdi
TI - Adsorptive removal of Hg2+ from aqueous solutions using amino phenyl-pyrazole-functionalized graphene oxide
JO - Carbon Letters
PY - 2020
VL - 30
IS - 5
PB - Korean Carbon Society
SP - 493
EP - 508
SN - 1976-4251
AB - The aim of this work is to investigate the ability of a new functionalized graphene oxide 3-amino-5-phenylpyrazole (F-GO) in the adsorption and removal of Hg2+ from aqueous solution. Both untreated graphene oxide (GO) and F-GO were char�acterized using FT-IR, EDX, FE-SEM, XRD and TGA analysis. The efects of three operational variables (pH, adsorbent dose and initial metal ion concentrations) on Hg2+ adsorption capacity of F-GO were investigated by central composite design. This technique aims to fnd a simple way to optimize the adsorption process and to analyze the interaction between the signifcant parameters. A quadratic model suggested for the analysis of variance found that the adsorption of metal ions heavily depend upon pH of the solution. The adsorption mechanism has been determined by pseudo-frst-order kinetic models and the adsorption behavior was modeled by Freundlich isotherm. Results demonstrated that the adsorption capacities of F-GO for removal of Hg2+ were generally higher than those of GO, which is attributed to a decrease in the agglomeration of graphene layers due to the presence of amino-functional moieties with their bulky phenyl groups. Thermodynamic data indicated that the functionalization signifcantly afects the thermostability of the GO precursor materials. The desorption study demonstrated favorable regenerability of the F-GO adsorbent, even after three adsorption–desorption cycles.
KW - Adsorption · Heavy metal · RSM Optimization · Functionalized graphene oxide
DO - 10.1007/s42823-019-00119-8
ER -

Alimohammady Mobina and Ghaemi Mehdi. (2020). Adsorptive removal of Hg2+ from aqueous solutions using amino phenyl-pyrazole-functionalized graphene oxide. Carbon Letters, 30(5), 493-508.

Alimohammady Mobina and Ghaemi Mehdi. 2020, "Adsorptive removal of Hg2+ from aqueous solutions using amino phenyl-pyrazole-functionalized graphene oxide", Carbon Letters, vol.30, no.5 pp.493-508. Available from: doi:10.1007/s42823-019-00119-8

Alimohammady Mobina, Ghaemi Mehdi "Adsorptive removal of Hg2+ from aqueous solutions using amino phenyl-pyrazole-functionalized graphene oxide" Carbon Letters 30.5 pp.493-508 (2020) : 493.

Alimohammady Mobina, Ghaemi Mehdi. Adsorptive removal of Hg2+ from aqueous solutions using amino phenyl-pyrazole-functionalized graphene oxide. 2020; 30(5), 493-508. Available from: doi:10.1007/s42823-019-00119-8

Alimohammady Mobina and Ghaemi Mehdi. "Adsorptive removal of Hg2+ from aqueous solutions using amino phenyl-pyrazole-functionalized graphene oxide" Carbon Letters 30, no.5 (2020) : 493-508.doi: 10.1007/s42823-019-00119-8

Alimohammady Mobina; Ghaemi Mehdi. Adsorptive removal of Hg2+ from aqueous solutions using amino phenyl-pyrazole-functionalized graphene oxide. Carbon Letters, 30(5), 493-508. doi: 10.1007/s42823-019-00119-8

Alimohammady Mobina; Ghaemi Mehdi. Adsorptive removal of Hg2+ from aqueous solutions using amino phenyl-pyrazole-functionalized graphene oxide. Carbon Letters. 2020; 30(5) 493-508. doi: 10.1007/s42823-019-00119-8

Alimohammady Mobina, Ghaemi Mehdi. Adsorptive removal of Hg2+ from aqueous solutions using amino phenyl-pyrazole-functionalized graphene oxide. 2020; 30(5), 493-508. Available from: doi:10.1007/s42823-019-00119-8

Alimohammady Mobina and Ghaemi Mehdi. "Adsorptive removal of Hg2+ from aqueous solutions using amino phenyl-pyrazole-functionalized graphene oxide" Carbon Letters 30, no.5 (2020) : 493-508.doi: 10.1007/s42823-019-00119-8