Structural and surface modification of highly ordered alumina for enhanced removal of Pb2+, Cd2+ and Ni2+ from aqueous solution
Nema prikaza
Autori
Milosević, Dragana L.Tomić, Nataša
Đokić, Veljko
Vidović, Milka
Veličković, Zlate
Jančić-Heinemann, Radmila
Marinković, Aleksandar
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
The adsorption performance of three-dimensionally ordered macroporous (3DOM) alumina doped with iron oxide, and subsequently modified with (3-aminopropyl)triethoxysilane (APTES), FeAl2O3 and FeAl(2)O(3)APTES, was used for enhanced Pb2+, Cd2+ and Ni2+ removal. The phase composition and the structural and surface/textural properties of the obtained adsorbents were analyzed by X-ray diffraction analysis, field emission scanning electron microscope, energy dispersive X-ray analysis, thermogravimetry, Fourier-transfer infrared spectroscopy, specific surface area of the samples and point of zero charge determination. Adsorption of selected cations was examined in the batch conditions using different contact time, adsorbent dosage and temperatures. Different models of the adsorption isotherms were used for determination of the adsorption capacities, in which the best fit of Freundlich and Langmuir model was obtained for FeAl2O3, that is, Freundlich model for FeAl(2)O(3)APTES. A significant in...crease of adsorption capacities: from 44.21 to 51.66 mg g(-1) for Pb2+, 25.69 to 32.96 mg g(-1) for Cd2+ and 19.48 to 24.64 mg g(-1) for Ni2+ was obtained for FeAl2O3 and FeAl(2)O(3)APTES, respectively, which indicated the significance of the macroporous structure of 3DOM alumina and subsequent amino-terminal modification. The values of the correlation coefficient (R-2) suggested that pseudo-second kinetic model best describes Pb2+, Cd2+ and Ni2+ adsorption on FeAl(2)O(3)APTES, and Cd2+ and Ni2+ onto FeAl2O3, while second kinetic model gave the highest correlation coefficients for Pb2+ adsorption on FeAl2O3.
Ključne reči:
Alumina / Sol-gel processes / Surface properties / AdsorptionIzvor:
Desalination and Water Treatment, 2020, 178, 220-239Izdavač:
- Desalination Publ, Hopkinton
Finansiranje / projekti:
- Geološka i ekotoksikološka istraživanja u identifikaciji geopatogenih zona toksičnih elemenata u akumulacijama vode za piće-istraživanje metoda i postupaka smanjivanja uticaja biogeohemijskih anomalija (RS-MESTD-Basic Research (BR or ON)-176018)
- Razvoj opreme i procesa dobijanja polimernih kompozitnih materijala sa unapred definisanim funkcionalnim svojstvima (RS-MESTD-Technological Development (TD or TR)-34011)
- Sinteza, razvoj tehnologija dobijanja i primena nanostrukturnih multifunkcionalnih materijala definisanih svojstava (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45019)
- Usmerena sinteza, struktura i svojstva multifunkcionalnih materijala (RS-MESTD-Basic Research (BR or ON)-172057)
DOI: 10.5004/dwt.2020.24982
ISSN: 1944-3994
WoS: 000544998600022
Scopus: 2-s2.0-85094894401
Kolekcije
Institucija/grupa
Tehnološko-metalurški fakultetTY - JOUR AU - Milosević, Dragana L. AU - Tomić, Nataša AU - Đokić, Veljko AU - Vidović, Milka AU - Veličković, Zlate AU - Jančić-Heinemann, Radmila AU - Marinković, Aleksandar PY - 2020 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4506 AB - The adsorption performance of three-dimensionally ordered macroporous (3DOM) alumina doped with iron oxide, and subsequently modified with (3-aminopropyl)triethoxysilane (APTES), FeAl2O3 and FeAl(2)O(3)APTES, was used for enhanced Pb2+, Cd2+ and Ni2+ removal. The phase composition and the structural and surface/textural properties of the obtained adsorbents were analyzed by X-ray diffraction analysis, field emission scanning electron microscope, energy dispersive X-ray analysis, thermogravimetry, Fourier-transfer infrared spectroscopy, specific surface area of the samples and point of zero charge determination. Adsorption of selected cations was examined in the batch conditions using different contact time, adsorbent dosage and temperatures. Different models of the adsorption isotherms were used for determination of the adsorption capacities, in which the best fit of Freundlich and Langmuir model was obtained for FeAl2O3, that is, Freundlich model for FeAl(2)O(3)APTES. A significant increase of adsorption capacities: from 44.21 to 51.66 mg g(-1) for Pb2+, 25.69 to 32.96 mg g(-1) for Cd2+ and 19.48 to 24.64 mg g(-1) for Ni2+ was obtained for FeAl2O3 and FeAl(2)O(3)APTES, respectively, which indicated the significance of the macroporous structure of 3DOM alumina and subsequent amino-terminal modification. The values of the correlation coefficient (R-2) suggested that pseudo-second kinetic model best describes Pb2+, Cd2+ and Ni2+ adsorption on FeAl(2)O(3)APTES, and Cd2+ and Ni2+ onto FeAl2O3, while second kinetic model gave the highest correlation coefficients for Pb2+ adsorption on FeAl2O3. PB - Desalination Publ, Hopkinton T2 - Desalination and Water Treatment T1 - Structural and surface modification of highly ordered alumina for enhanced removal of Pb2+, Cd2+ and Ni2+ from aqueous solution EP - 239 SP - 220 VL - 178 DO - 10.5004/dwt.2020.24982 ER -
@article{ author = "Milosević, Dragana L. and Tomić, Nataša and Đokić, Veljko and Vidović, Milka and Veličković, Zlate and Jančić-Heinemann, Radmila and Marinković, Aleksandar", year = "2020", abstract = "The adsorption performance of three-dimensionally ordered macroporous (3DOM) alumina doped with iron oxide, and subsequently modified with (3-aminopropyl)triethoxysilane (APTES), FeAl2O3 and FeAl(2)O(3)APTES, was used for enhanced Pb2+, Cd2+ and Ni2+ removal. The phase composition and the structural and surface/textural properties of the obtained adsorbents were analyzed by X-ray diffraction analysis, field emission scanning electron microscope, energy dispersive X-ray analysis, thermogravimetry, Fourier-transfer infrared spectroscopy, specific surface area of the samples and point of zero charge determination. Adsorption of selected cations was examined in the batch conditions using different contact time, adsorbent dosage and temperatures. Different models of the adsorption isotherms were used for determination of the adsorption capacities, in which the best fit of Freundlich and Langmuir model was obtained for FeAl2O3, that is, Freundlich model for FeAl(2)O(3)APTES. A significant increase of adsorption capacities: from 44.21 to 51.66 mg g(-1) for Pb2+, 25.69 to 32.96 mg g(-1) for Cd2+ and 19.48 to 24.64 mg g(-1) for Ni2+ was obtained for FeAl2O3 and FeAl(2)O(3)APTES, respectively, which indicated the significance of the macroporous structure of 3DOM alumina and subsequent amino-terminal modification. The values of the correlation coefficient (R-2) suggested that pseudo-second kinetic model best describes Pb2+, Cd2+ and Ni2+ adsorption on FeAl(2)O(3)APTES, and Cd2+ and Ni2+ onto FeAl2O3, while second kinetic model gave the highest correlation coefficients for Pb2+ adsorption on FeAl2O3.", publisher = "Desalination Publ, Hopkinton", journal = "Desalination and Water Treatment", title = "Structural and surface modification of highly ordered alumina for enhanced removal of Pb2+, Cd2+ and Ni2+ from aqueous solution", pages = "239-220", volume = "178", doi = "10.5004/dwt.2020.24982" }
Milosević, D. L., Tomić, N., Đokić, V., Vidović, M., Veličković, Z., Jančić-Heinemann, R.,& Marinković, A.. (2020). Structural and surface modification of highly ordered alumina for enhanced removal of Pb2+, Cd2+ and Ni2+ from aqueous solution. in Desalination and Water Treatment Desalination Publ, Hopkinton., 178, 220-239. https://doi.org/10.5004/dwt.2020.24982
Milosević DL, Tomić N, Đokić V, Vidović M, Veličković Z, Jančić-Heinemann R, Marinković A. Structural and surface modification of highly ordered alumina for enhanced removal of Pb2+, Cd2+ and Ni2+ from aqueous solution. in Desalination and Water Treatment. 2020;178:220-239. doi:10.5004/dwt.2020.24982 .
Milosević, Dragana L., Tomić, Nataša, Đokić, Veljko, Vidović, Milka, Veličković, Zlate, Jančić-Heinemann, Radmila, Marinković, Aleksandar, "Structural and surface modification of highly ordered alumina for enhanced removal of Pb2+, Cd2+ and Ni2+ from aqueous solution" in Desalination and Water Treatment, 178 (2020):220-239, https://doi.org/10.5004/dwt.2020.24982 . .