Synthesis and characterization of composites based on expanded vermiculite and ferrite spinels
Аутори
Bugarčić, MladenMilivojević, Milan
Jovanović, Gvozden
Milošević, Dragana
Daković, Aleksandra
Stojanović, Jovica
Остала ауторства
Glišić, DragomirMarković, Branislav
Manojlović, Vaso
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Expanded vermiculite (EV) is clay, a typical 2:1 phyllosilicate which may be
easily produced from the mineral vermiculite. After expansion EV withholds vermiculites
physical structure but becomes far more porous than vermiculite which is
accredited to the huge increase in the intercalation layer thickness. This feature in
conjunction with the fact that the intercalation layer enriched by intercalation cations
and water was the initial motive for this research, which opened a novel method
for spinels synthesis. Intercalation layer of the EV is utilized as a reaction medium
for the synthesis of Fe3O4, MnFe2O4, CoFe2O4, and FeCrFeO4. While magnetite
is synthesized using the co-precipitation method, others are synthesized using
hydrothermal co-precipitation method. Composites are then characterized by XRD
(X-ray diffraction), FTIR (Fourier transformed infrared spectroscopy), SEM/EDS
(scanning electron microscopy with energy dispersing microscopy) that confirmed
the presence of ...the ferrite spinels inside the intercalation layer. After performed
synthesis of the spinels, further parameters were determined: the isoelectric point
(IEP), the capacity of cation exchange (CEC) and specific surface area (SSA) is
calculated using Brunauer–Emmett–Teller (BET) adsorption isotherm of each
composite together with matrix material (EV). The composites could be used as
potential adsorbents of heavy metals and/or organic pollutants, and this synthesis
method could be used for producing numerous compounds that are mainly being
produced by solvothermal method or co-precipitation method.
Кључне речи:
expanded vermiculite / mineral composites / hydrothermal alteration / ferritesИзвор:
4th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE 2019, 2019, 35-35Издавач:
- Belgrade : Association of Metallurgical Engineers of Serbia
Финансирање / пројекти:
- Развој технолошких процеса прераде нестандардних концентрата бакра у циљу оптимизације емисије загађујућих материја (RS-MESTD-Technological Development (TD or TR)-34023)
Институција/група
Institut za tehnologiju nuklearnih i drugih mineralnih sirovinaTY - CONF AU - Bugarčić, Mladen AU - Milivojević, Milan AU - Jovanović, Gvozden AU - Milošević, Dragana AU - Daković, Aleksandra AU - Stojanović, Jovica PY - 2019 UR - https://ritnms.itnms.ac.rs/handle/123456789/984 AB - Expanded vermiculite (EV) is clay, a typical 2:1 phyllosilicate which may be easily produced from the mineral vermiculite. After expansion EV withholds vermiculites physical structure but becomes far more porous than vermiculite which is accredited to the huge increase in the intercalation layer thickness. This feature in conjunction with the fact that the intercalation layer enriched by intercalation cations and water was the initial motive for this research, which opened a novel method for spinels synthesis. Intercalation layer of the EV is utilized as a reaction medium for the synthesis of Fe3O4, MnFe2O4, CoFe2O4, and FeCrFeO4. While magnetite is synthesized using the co-precipitation method, others are synthesized using hydrothermal co-precipitation method. Composites are then characterized by XRD (X-ray diffraction), FTIR (Fourier transformed infrared spectroscopy), SEM/EDS (scanning electron microscopy with energy dispersing microscopy) that confirmed the presence of the ferrite spinels inside the intercalation layer. After performed synthesis of the spinels, further parameters were determined: the isoelectric point (IEP), the capacity of cation exchange (CEC) and specific surface area (SSA) is calculated using Brunauer–Emmett–Teller (BET) adsorption isotherm of each composite together with matrix material (EV). The composites could be used as potential adsorbents of heavy metals and/or organic pollutants, and this synthesis method could be used for producing numerous compounds that are mainly being produced by solvothermal method or co-precipitation method. PB - Belgrade : Association of Metallurgical Engineers of Serbia C3 - 4th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE 2019 T1 - Synthesis and characterization of composites based on expanded vermiculite and ferrite spinels EP - 35 SP - 35 ER -
@conference{ author = "Bugarčić, Mladen and Milivojević, Milan and Jovanović, Gvozden and Milošević, Dragana and Daković, Aleksandra and Stojanović, Jovica", year = "2019", abstract = "Expanded vermiculite (EV) is clay, a typical 2:1 phyllosilicate which may be easily produced from the mineral vermiculite. After expansion EV withholds vermiculites physical structure but becomes far more porous than vermiculite which is accredited to the huge increase in the intercalation layer thickness. This feature in conjunction with the fact that the intercalation layer enriched by intercalation cations and water was the initial motive for this research, which opened a novel method for spinels synthesis. Intercalation layer of the EV is utilized as a reaction medium for the synthesis of Fe3O4, MnFe2O4, CoFe2O4, and FeCrFeO4. While magnetite is synthesized using the co-precipitation method, others are synthesized using hydrothermal co-precipitation method. Composites are then characterized by XRD (X-ray diffraction), FTIR (Fourier transformed infrared spectroscopy), SEM/EDS (scanning electron microscopy with energy dispersing microscopy) that confirmed the presence of the ferrite spinels inside the intercalation layer. After performed synthesis of the spinels, further parameters were determined: the isoelectric point (IEP), the capacity of cation exchange (CEC) and specific surface area (SSA) is calculated using Brunauer–Emmett–Teller (BET) adsorption isotherm of each composite together with matrix material (EV). The composites could be used as potential adsorbents of heavy metals and/or organic pollutants, and this synthesis method could be used for producing numerous compounds that are mainly being produced by solvothermal method or co-precipitation method.", publisher = "Belgrade : Association of Metallurgical Engineers of Serbia", journal = "4th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE 2019", title = "Synthesis and characterization of composites based on expanded vermiculite and ferrite spinels", pages = "35-35" }
Bugarčić, M., Milivojević, M., Jovanović, G., Milošević, D., Daković, A.,& Stojanović, J.. (2019). Synthesis and characterization of composites based on expanded vermiculite and ferrite spinels. in 4th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE 2019 Belgrade : Association of Metallurgical Engineers of Serbia., 35-35.
Bugarčić M, Milivojević M, Jovanović G, Milošević D, Daković A, Stojanović J. Synthesis and characterization of composites based on expanded vermiculite and ferrite spinels. in 4th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE 2019. 2019;:35-35..
Bugarčić, Mladen, Milivojević, Milan, Jovanović, Gvozden, Milošević, Dragana, Daković, Aleksandra, Stojanović, Jovica, "Synthesis and characterization of composites based on expanded vermiculite and ferrite spinels" in 4th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE 2019 (2019):35-35.