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Oxidative degradation of aromatic N-compounds using cobalt containing montmorillonite-based catalysts

Authorized Users Only
2020
Authors
Ilić, Ilija
Milutinović-Nikolić, Aleksandra D.
Mojović, Zorica D.
Vuković, Zoran
Vulić, Predrag J.
Gržetić, Ivan
Banković, Predrag
Jović-Jovičić, Nataša
Article (Published version)
Metadata
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Abstract
The goal of this work was the synthesis of a montmorillonite based catalyst for advanced oxidative degradation of organic water pollutants. Montmorillonite (Mt) –rich bentonite was acid-activated (MtA), and impregnated with cobalt (II) solution using the incipient wetness impregnation method. The impregnation was followed by heat treatment. Cobalt(II) ions were added in the quantities corresponding to 0.5 and 1.0 of the cation exchange capacity value. All samples were characterized by using chemical analysis, X-ray powder diffraction (XRPD), Electron paramagnetic resonance (EPR), X-ray photoelectron spectroscopy (XPS), Scanning electron microscopy (SEM) coupled with Energy-dispersive X-ray spectroscopy (EDS), Transmission electron microscopy (TEM) and low temperature N2 physisorption. The incorporation of the cobalt in the impregnated samples and the development of porous structure in the acid-activated ones were confirmed. The montmorillonite (Mt) was used as a catalyst support, while... the cobalt in its oxide form was responsible for the generation of sulfo-radicals from Oxone®. Two aromatic N-compounds were tested as model pollutants: diazo dye - Acid Orange 10 (AO10) and nicotine. It was found that the synthesized catalysts could be used for the degradation of both pollutants, although more efficiently in AO10 degradation. The acid activation, higher cobalt loading, and temperature were found to be beneficial for the degradation of AO10.

Keywords:
Acid activation / Catalyst / Cobalt / Incipient wetness impregnation / Montmorillonite / Oxone®
Source:
Applied Clay Science, 2020, 193, 105668-
Publisher:
  • Elsevier
Funding / projects:
  • Eksperimentalna i kliničko-farmakološka istraživanja mehanizma dejstva i interakcija lekova u nervnom i kardiovaskularnom sistemu (RS-145001)
  • info:eu-repo/grantAgreement/MESTD/inst-2020/200026/RS/ (RS-200026)
Note:
  • Supplementary material: http://cherry.chem.bg.ac.rs/handle/123456789/4046

DOI: 10.1016/j.clay.2020.105668

ISSN: 0169-1317

WoS: 000545902900011

Scopus: 2-s2.0-85084596942
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URI
https://cherry.chem.bg.ac.rs/handle/123456789/4045
Collections
  • Publikacije
Institution/Community
Hemijski fakultet
TY  - JOUR
AU  - Ilić, Ilija
AU  - Milutinović-Nikolić, Aleksandra D.
AU  - Mojović, Zorica D.
AU  - Vuković, Zoran
AU  - Vulić, Predrag J.
AU  - Gržetić, Ivan
AU  - Banković, Predrag
AU  - Jović-Jovičić, Nataša
PY  - 2020
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/4045
AB  - The goal of this work was the synthesis of a montmorillonite based catalyst for advanced oxidative degradation of organic water pollutants. Montmorillonite (Mt) –rich bentonite was acid-activated (MtA), and impregnated with cobalt (II) solution using the incipient wetness impregnation method. The impregnation was followed by heat treatment. Cobalt(II) ions were added in the quantities corresponding to 0.5 and 1.0 of the cation exchange capacity value. All samples were characterized by using chemical analysis, X-ray powder diffraction (XRPD), Electron paramagnetic resonance (EPR), X-ray photoelectron spectroscopy (XPS), Scanning electron microscopy (SEM) coupled with Energy-dispersive X-ray spectroscopy (EDS), Transmission electron microscopy (TEM) and low temperature N2 physisorption. The incorporation of the cobalt in the impregnated samples and the development of porous structure in the acid-activated ones were confirmed. The montmorillonite (Mt) was used as a catalyst support, while the cobalt in its oxide form was responsible for the generation of sulfo-radicals from Oxone®. Two aromatic N-compounds were tested as model pollutants: diazo dye - Acid Orange 10 (AO10) and nicotine. It was found that the synthesized catalysts could be used for the degradation of both pollutants, although more efficiently in AO10 degradation. The acid activation, higher cobalt loading, and temperature were found to be beneficial for the degradation of AO10.
PB  - Elsevier
T2  - Applied Clay Science
T1  - Oxidative degradation of aromatic N-compounds using cobalt containing montmorillonite-based catalysts
VL  - 193
SP  - 105668
DO  - 10.1016/j.clay.2020.105668
ER  - 
@article{
author = "Ilić, Ilija and Milutinović-Nikolić, Aleksandra D. and Mojović, Zorica D. and Vuković, Zoran and Vulić, Predrag J. and Gržetić, Ivan and Banković, Predrag and Jović-Jovičić, Nataša",
year = "2020",
abstract = "The goal of this work was the synthesis of a montmorillonite based catalyst for advanced oxidative degradation of organic water pollutants. Montmorillonite (Mt) –rich bentonite was acid-activated (MtA), and impregnated with cobalt (II) solution using the incipient wetness impregnation method. The impregnation was followed by heat treatment. Cobalt(II) ions were added in the quantities corresponding to 0.5 and 1.0 of the cation exchange capacity value. All samples were characterized by using chemical analysis, X-ray powder diffraction (XRPD), Electron paramagnetic resonance (EPR), X-ray photoelectron spectroscopy (XPS), Scanning electron microscopy (SEM) coupled with Energy-dispersive X-ray spectroscopy (EDS), Transmission electron microscopy (TEM) and low temperature N2 physisorption. The incorporation of the cobalt in the impregnated samples and the development of porous structure in the acid-activated ones were confirmed. The montmorillonite (Mt) was used as a catalyst support, while the cobalt in its oxide form was responsible for the generation of sulfo-radicals from Oxone®. Two aromatic N-compounds were tested as model pollutants: diazo dye - Acid Orange 10 (AO10) and nicotine. It was found that the synthesized catalysts could be used for the degradation of both pollutants, although more efficiently in AO10 degradation. The acid activation, higher cobalt loading, and temperature were found to be beneficial for the degradation of AO10.",
publisher = "Elsevier",
journal = "Applied Clay Science",
title = "Oxidative degradation of aromatic N-compounds using cobalt containing montmorillonite-based catalysts",
volume = "193",
pages = "105668",
doi = "10.1016/j.clay.2020.105668"
}
Ilić, I., Milutinović-Nikolić, A. D., Mojović, Z. D., Vuković, Z., Vulić, P. J., Gržetić, I., Banković, P.,& Jović-Jovičić, N.. (2020). Oxidative degradation of aromatic N-compounds using cobalt containing montmorillonite-based catalysts. in Applied Clay Science
Elsevier., 193, 105668.
https://doi.org/10.1016/j.clay.2020.105668
Ilić I, Milutinović-Nikolić AD, Mojović ZD, Vuković Z, Vulić PJ, Gržetić I, Banković P, Jović-Jovičić N. Oxidative degradation of aromatic N-compounds using cobalt containing montmorillonite-based catalysts. in Applied Clay Science. 2020;193:105668.
doi:10.1016/j.clay.2020.105668 .
Ilić, Ilija, Milutinović-Nikolić, Aleksandra D., Mojović, Zorica D., Vuković, Zoran, Vulić, Predrag J., Gržetić, Ivan, Banković, Predrag, Jović-Jovičić, Nataša, "Oxidative degradation of aromatic N-compounds using cobalt containing montmorillonite-based catalysts" in Applied Clay Science, 193 (2020):105668,
https://doi.org/10.1016/j.clay.2020.105668 . .

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