Vermiculite enriched by Fe(III) oxides as a novel adsorbent for toxic metals removal
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2021
Authors
Bugarcic, MladenLopicic, Zorica
Sostaric, Tatjana
Marinković, Aleksandar
Rusmirovic, Jelena D.
Milosevic, Dragana
Milivojević, Milan
Article (Published version)
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Expanded vermiculite (EV) was modified by deposition of different spinel ferrite composites on the outer surface of EV 2:1 layers in order to improve its adsorptive properties. Modifications were made by deposition of: magnetite, manganese ferrite, cobalt ferrite and chromium oxide/hematite. The characterization of modified materials was performed by: scanning electron microscopy (SEM), Brunauer-Emmett-Teller (BET) methodology, X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), magnetization measurements, as well as determination of cation exchange capacity (CEC) and pH point of zero charge (pHPZC). Obtained samples were used as adsorbents for Pb2+, Ni(2+)and Cd2+ ions from an aqueous solution in a batch system. Results showed that adsorption capacity was strongly dependent on physical and chemical changes induced by specific chemical modification. Hydrothermally produced manganese and cobalt ferrites caused significant surface changes and altered the interlayer c...ation balance. Among the others, EV-Mn/Co-ferrite(s) samples possessed the highest adsorption capacity towards Ni2+ (33.06 mg g(-1)), along with an increase of the CEC. Freundlich's adsorption isotherm model provided the best fit of obtained experimental data, while kinetic studies showed that the adsorption rate follows the pseudo second-order model, implying heterogeneous adsorbents surface. Thermodynamic and kinetic parameters indicated that the mechanism of cations removal efficacy was dominantly followed by the ion exchange. This study confirmed that doped ferrites, produced by solvothermal method, improve surface properties of EV and increase adsorption potentials towards heavy metals.
Keywords:
Expanded vermiculite / Ferrite deposition / Heavy metals / Adsorbent separationSource:
Journal of Environmental Chemical Engineering, 2021, 9, 5Funding / projects:
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200026 (University of Belgrade, Institute of Chemistry, Technology and Metallurgy - IChTM) (RS-MESTD-inst-2020-200026)
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200023 (Institute of Technology of Nuclear and Other Mineral Row Materials - ITNMS, Belgrade) (RS-MESTD-inst-2020-200023)
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200135 (University of Belgrade, Faculty of Technology and Metallurgy) (RS-MESTD-inst-2020-200135)
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200325 (Military Technical Institute - MTI, Belgrade) (RS-MESTD-inst-2020-200325)
DOI: 10.1016/j.jece.2021.106020
ISSN: 2213-3437
WoS: 000703865500008
Scopus: 2-s2.0-85110116108
Institution/Community
Tehnološko-metalurški fakultetTY - JOUR AU - Bugarcic, Mladen AU - Lopicic, Zorica AU - Sostaric, Tatjana AU - Marinković, Aleksandar AU - Rusmirovic, Jelena D. AU - Milosevic, Dragana AU - Milivojević, Milan PY - 2021 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4800 AB - Expanded vermiculite (EV) was modified by deposition of different spinel ferrite composites on the outer surface of EV 2:1 layers in order to improve its adsorptive properties. Modifications were made by deposition of: magnetite, manganese ferrite, cobalt ferrite and chromium oxide/hematite. The characterization of modified materials was performed by: scanning electron microscopy (SEM), Brunauer-Emmett-Teller (BET) methodology, X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), magnetization measurements, as well as determination of cation exchange capacity (CEC) and pH point of zero charge (pHPZC). Obtained samples were used as adsorbents for Pb2+, Ni(2+)and Cd2+ ions from an aqueous solution in a batch system. Results showed that adsorption capacity was strongly dependent on physical and chemical changes induced by specific chemical modification. Hydrothermally produced manganese and cobalt ferrites caused significant surface changes and altered the interlayer cation balance. Among the others, EV-Mn/Co-ferrite(s) samples possessed the highest adsorption capacity towards Ni2+ (33.06 mg g(-1)), along with an increase of the CEC. Freundlich's adsorption isotherm model provided the best fit of obtained experimental data, while kinetic studies showed that the adsorption rate follows the pseudo second-order model, implying heterogeneous adsorbents surface. Thermodynamic and kinetic parameters indicated that the mechanism of cations removal efficacy was dominantly followed by the ion exchange. This study confirmed that doped ferrites, produced by solvothermal method, improve surface properties of EV and increase adsorption potentials towards heavy metals. T2 - Journal of Environmental Chemical Engineering T1 - Vermiculite enriched by Fe(III) oxides as a novel adsorbent for toxic metals removal IS - 5 VL - 9 DO - 10.1016/j.jece.2021.106020 ER -
@article{ author = "Bugarcic, Mladen and Lopicic, Zorica and Sostaric, Tatjana and Marinković, Aleksandar and Rusmirovic, Jelena D. and Milosevic, Dragana and Milivojević, Milan", year = "2021", abstract = "Expanded vermiculite (EV) was modified by deposition of different spinel ferrite composites on the outer surface of EV 2:1 layers in order to improve its adsorptive properties. Modifications were made by deposition of: magnetite, manganese ferrite, cobalt ferrite and chromium oxide/hematite. The characterization of modified materials was performed by: scanning electron microscopy (SEM), Brunauer-Emmett-Teller (BET) methodology, X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), magnetization measurements, as well as determination of cation exchange capacity (CEC) and pH point of zero charge (pHPZC). Obtained samples were used as adsorbents for Pb2+, Ni(2+)and Cd2+ ions from an aqueous solution in a batch system. Results showed that adsorption capacity was strongly dependent on physical and chemical changes induced by specific chemical modification. Hydrothermally produced manganese and cobalt ferrites caused significant surface changes and altered the interlayer cation balance. Among the others, EV-Mn/Co-ferrite(s) samples possessed the highest adsorption capacity towards Ni2+ (33.06 mg g(-1)), along with an increase of the CEC. Freundlich's adsorption isotherm model provided the best fit of obtained experimental data, while kinetic studies showed that the adsorption rate follows the pseudo second-order model, implying heterogeneous adsorbents surface. Thermodynamic and kinetic parameters indicated that the mechanism of cations removal efficacy was dominantly followed by the ion exchange. This study confirmed that doped ferrites, produced by solvothermal method, improve surface properties of EV and increase adsorption potentials towards heavy metals.", journal = "Journal of Environmental Chemical Engineering", title = "Vermiculite enriched by Fe(III) oxides as a novel adsorbent for toxic metals removal", number = "5", volume = "9", doi = "10.1016/j.jece.2021.106020" }
Bugarcic, M., Lopicic, Z., Sostaric, T., Marinković, A., Rusmirovic, J. D., Milosevic, D.,& Milivojević, M.. (2021). Vermiculite enriched by Fe(III) oxides as a novel adsorbent for toxic metals removal. in Journal of Environmental Chemical Engineering, 9(5). https://doi.org/10.1016/j.jece.2021.106020
Bugarcic M, Lopicic Z, Sostaric T, Marinković A, Rusmirovic JD, Milosevic D, Milivojević M. Vermiculite enriched by Fe(III) oxides as a novel adsorbent for toxic metals removal. in Journal of Environmental Chemical Engineering. 2021;9(5). doi:10.1016/j.jece.2021.106020 .
Bugarcic, Mladen, Lopicic, Zorica, Sostaric, Tatjana, Marinković, Aleksandar, Rusmirovic, Jelena D., Milosevic, Dragana, Milivojević, Milan, "Vermiculite enriched by Fe(III) oxides as a novel adsorbent for toxic metals removal" in Journal of Environmental Chemical Engineering, 9, no. 5 (2021), https://doi.org/10.1016/j.jece.2021.106020 . .