Experimental Model for Cu(II) and Fe(III) Sorption from Synthetic Solutions Based on Maize Stalk

Marin, Nicoleta Mirela; Batrinescu, Gheorghe; Stanculescu, Ioana; Constantin, Lucian; Cristea, Nicolae Ionut; Ionescu, Alexandra Ioana; Traistaru, Gina Alina

Nicoleta Mirela Marin, Gheorghe Batrinescu, Ioana Stanculescu, Lucian Constantin, Nicolae Ionut Cristea, Alexandra Ioana Ionescu, Gina Alina Traistaru

Experimental Model for Cu(II) and Fe(III) Sorption from Synthetic Solutions Based on Maize Stalk

Abstract:

This study is based to a new concept, to use maize stalk for specific sorption and recovery of Cu(II) and Fe(III) from synthetic solutions. Thus, the sorption properties of the biomass resulting from the recycling of the maize stalk that reached maturity (autumn) were studied. In the first stage, the sorption properties of the maize stalk were evaluated in batch system. Moreover, in terms of water quality improvement several key parameters that influence the sorption equilibrium were evaluated. The effect of contact time (0-120min) and cations initial concentration (investigated range: 0.05-0.4 mg/L) on biomaterial sorption capacity were assessed. Kinetic studies were performed taking into consideration the initial concentration of metallic cation. The experimental data were analyzed based on first order kinetic model, pseudo-second-kinetic model and Morris Webber kinetic model. The kinetics of sorption was in accordance with the pseudo - second - kinetic model as the correlation coefficients showed (R2=0.9940 for Cu(II) and R2=0.9999 for Fe(III)). Moreover the desorption study was evaluated with hydrochloric acid and have detected to be 63% and 89% for Cu(II) and Fe(III) when 4M HCl is used. The surface of the maize stalk loaded with Cu(II) and Fe(III) was characterized by various specific techniques such as FTIR-ATR, SEM, and TG. Experimental results revealed that cations sorption process takes place on the sorbent surface. The sorption rate of each metallic cation is controlled by the formation of chemical bonds with surface polar groups. Their presence on biomass structure, evidenced by FTIR-ATR analysis, explains the behavior of maize stalk as a weak ion exchanger acid.

Keywords:
maize stalk; sorption kinetic modes; experimental model; copper(II); iron(III)

Issue: 2020, Volume 71, Issue 6

Pages: 355-367

Publication date: 2020/7/1

https://doi.org/10.37358/RC.20.6.8202

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This article is published under the Creative Commons Attribution 4.0 International License

Citation Styles

Cite this article as:
MARIN, N.M., BATRINESCU, G., STANCULESCU, I., CONSTANTIN, L., CRISTEA, N.I., IONESCU, A.I., TRAISTARU, G.A., Experimental Model for Cu(II) and Fe(III) Sorption from Synthetic Solutions Based on Maize Stalk, Rev. Chim., 71(6), 2020, 355-367.

Vancouver
Marin NM, Batrinescu G, Stanculescu I, Constantin L, Cristea NI, Ionescu AI, Traistaru GA. Experimental Model for Cu(II) and Fe(III) Sorption from Synthetic Solutions Based on Maize Stalk. Rev. Chim.[internet]. 2020 Jun;71(6):355-367. Available from: https://doi.org/10.37358/RC.20.6.8202

APA 6th edition
Marin, N.M., Batrinescu, G., Stanculescu, I., Constantin, L., Cristea, N.I., Ionescu, A.I. & Traistaru, G.A. (2020). Experimental Model for Cu(II) and Fe(III) Sorption from Synthetic Solutions Based on Maize Stalk. Revista de Chimie, 71(6), 355-367. https://doi.org/10.37358/RC.20.6.8202

Harvard
Marin, N.M., Batrinescu, G., Stanculescu, I., Constantin, L., Cristea, N.I., Ionescu, A.I., Traistaru, G.A. (2020). 'Experimental Model for Cu(II) and Fe(III) Sorption from Synthetic Solutions Based on Maize Stalk', Revista de Chimie, 71(6), pp. 355-367. https://doi.org/10.37358/RC.20.6.8202

IEEE
N.M. Marin, G. Batrinescu, I. Stanculescu, L. Constantin, N.I. Cristea, A.I. Ionescu, G.A. Traistaru, "Experimental Model for Cu(II) and Fe(III) Sorption from Synthetic Solutions Based on Maize Stalk". Revista de Chimie, vol. 71, no. 6, pp. 355-367, 2020. [online]. https://doi.org/10.37358/RC.20.6.8202

Text
Nicoleta Mirela Marin, Gheorghe Batrinescu, Ioana Stanculescu, Lucian Constantin, Nicolae Ionut Cristea, Alexandra Ioana Ionescu, Gina Alina Traistaru,
Experimental Model for Cu(II) and Fe(III) Sorption from Synthetic Solutions Based on Maize Stalk,
Revista de Chimie,
Volume 71, Issue 6,
2020,
Pages 355-367,
ISSN 2668-8212,
https://doi.org/10.37358/RC.20.6.8202.
(https://revistadechimie.ro/Articles.asp?ID=8202)
Keywords: maize stalk; sorption kinetic modes; experimental model; copper(II); iron(III)

RIS
TY - JOUR
T1 - Experimental Model for Cu(II) and Fe(III) Sorption from Synthetic Solutions Based on Maize Stalk
A1 - Marin, Nicoleta Mirela
A2 - Batrinescu, Gheorghe
A3 - Stanculescu, Ioana
A4 - Constantin, Lucian
A5 - Cristea, Nicolae Ionut
A6 - Ionescu, Alexandra Ioana
A7 - Traistaru, Gina Alina
JF - Revista de Chimie
JO - Rev. Chim.
PB - Revista de Chimie SRL
SN - 2668-8212
Y1 - 2020
VL - 71
IS - 6
SP - 355
EP - 367
UR - https://doi.org/10.37358/RC.20.6.8202
KW - maize stalk
KW - sorption kinetic modes
KW - experimental model
KW - copper(II)
KW - iron(III)
ER -

BibTex
@article{RevCh2020P355,
author = {Marin Nicoleta Mirela and Batrinescu Gheorghe and Stanculescu Ioana and Constantin Lucian and Cristea Nicolae Ionut and Ionescu Alexandra Ioana and Traistaru Gina Alina},
title = {Experimental Model for Cu(II) and Fe(III) Sorption from Synthetic Solutions Based on Maize Stalk},
journal = {Revista de Chimie},
volume = {71},
number = {6},
pages = {355-367},
year = {2020},
issn = {2668-8212},
doi = {https://doi.org/10.37358/RC.20.6.8202},
url = {https://revistadechimie.ro/Articles.asp?ID=8202}
}

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