Enhanced sorption of Cu2+ from sulfate solutions onto modified electric arc furnace slag

Nikolić, Irena; Marković, Smilja; Veselinović, Ljiljana; Radmilović, Vuk; Janković-Častvan, Ivona; Radmilović, Velimir R.

doi:10.1016/j.matlet.2018.10.027

2019

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Authors

Nikolić, Irena

Marković, Smilja

Veselinović, Ljiljana

Radmilović, Vuk

Janković-Častvan, Ivona

Radmilović, Velimir R.

Article (Published version)

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Abstract

Pristine electric arc furnace slag (EAFS) as well as EAFS modified by alkali activation i.e. alkali activated slag (AAS) have found a novel application as adsorbents used in Cu2+ removal from sulfate solutions. The adsorption tests were carried in batch conditions and results have shown that alkali activation of EAFS enhances the Cu2+ adsorption. The adsorption process was found to follow a pseudo second-order kinetic model and occurs via formation of posnjakite (Cu-4(SO4)(OH)(6)center dot H2O) on the surface of both, EAFS and AAS. Enhanced adsorption properties of AAS, compared to EAFS, are attributed to a more porous structure, larger specific surface area and an increased number of surface groups involved in the binding of Cu2+.

Keywords:

Steel slag / Adsorption / Copper / Alkali activation / Porous materials / FTIR

Source:
Materials Letters, 2019, 235, 184-188

Publisher:

Elsevier Science Bv, Amsterdam

Funding / projects:

Montenegrin Ministry of Science [01-2383/2]
Serbian Academy of Sciences and Arts [F-141]
Synthesis, processing and applications of nanostructured multifunctional materials with defined properties (RS-45019)
Development, characterization and application nanostructured and composite electrocatalysts and interactive supports for fuel cells and water electrolysis (RS-172054)

DOI: 10.1016/j.matlet.2018.10.027

ISSN: 0167-577X

WoS: 000448000700046

Scopus: 2-s2.0-85054444108

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	2
	1

TY  - JOUR
AU  - Nikolić, Irena
AU  - Marković, Smilja
AU  - Veselinović, Ljiljana
AU  - Radmilović, Vuk
AU  - Janković-Častvan, Ivona
AU  - Radmilović, Velimir R.
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4339
AB  - Pristine electric arc furnace slag (EAFS) as well as EAFS modified by alkali activation i.e. alkali activated slag (AAS) have found a novel application as adsorbents used in Cu2+ removal from sulfate solutions. The adsorption tests were carried in batch conditions and results have shown that alkali activation of EAFS enhances the Cu2+ adsorption. The adsorption process was found to follow a pseudo second-order kinetic model and occurs via formation of posnjakite (Cu-4(SO4)(OH)(6)center dot H2O) on the surface of both, EAFS and AAS. Enhanced adsorption properties of AAS, compared to EAFS, are attributed to a more porous structure, larger specific surface area and an increased number of surface groups involved in the binding of Cu2+.
PB  - Elsevier Science Bv, Amsterdam
T2  - Materials Letters
T1  - Enhanced sorption of Cu2+ from sulfate solutions onto modified electric arc furnace slag
EP  - 188
SP  - 184
VL  - 235
DO  - 10.1016/j.matlet.2018.10.027
ER  -

@article{
author = "Nikolić, Irena and Marković, Smilja and Veselinović, Ljiljana and Radmilović, Vuk and Janković-Častvan, Ivona and Radmilović, Velimir R.",
year = "2019",
abstract = "Pristine electric arc furnace slag (EAFS) as well as EAFS modified by alkali activation i.e. alkali activated slag (AAS) have found a novel application as adsorbents used in Cu2+ removal from sulfate solutions. The adsorption tests were carried in batch conditions and results have shown that alkali activation of EAFS enhances the Cu2+ adsorption. The adsorption process was found to follow a pseudo second-order kinetic model and occurs via formation of posnjakite (Cu-4(SO4)(OH)(6)center dot H2O) on the surface of both, EAFS and AAS. Enhanced adsorption properties of AAS, compared to EAFS, are attributed to a more porous structure, larger specific surface area and an increased number of surface groups involved in the binding of Cu2+.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Materials Letters",
title = "Enhanced sorption of Cu2+ from sulfate solutions onto modified electric arc furnace slag",
pages = "188-184",
volume = "235",
doi = "10.1016/j.matlet.2018.10.027"
}

Nikolić, I., Marković, S., Veselinović, L., Radmilović, V., Janković-Častvan, I.,& Radmilović, V. R.. (2019). Enhanced sorption of Cu2+ from sulfate solutions onto modified electric arc furnace slag. in Materials Letters
Elsevier Science Bv, Amsterdam., 235, 184-188.
https://doi.org/10.1016/j.matlet.2018.10.027

Nikolić I, Marković S, Veselinović L, Radmilović V, Janković-Častvan I, Radmilović VR. Enhanced sorption of Cu2+ from sulfate solutions onto modified electric arc furnace slag. in Materials Letters. 2019;235:184-188.
doi:10.1016/j.matlet.2018.10.027 .

Nikolić, Irena, Marković, Smilja, Veselinović, Ljiljana, Radmilović, Vuk, Janković-Častvan, Ivona, Radmilović, Velimir R., "Enhanced sorption of Cu2+ from sulfate solutions onto modified electric arc furnace slag" in Materials Letters, 235 (2019):184-188,
https://doi.org/10.1016/j.matlet.2018.10.027 . .