The role of different minerals from red mud assemblage in Co(II) sorption mechanism
Само за регистроване кориснике
2016
Аутори
Milenković, A.Smičiklas, Ivana D.
Bundaleski, Nenad
Teodoro, Orlando M. N. D.
Veljović, Đorđe N.
Vukelić, Nikola S.
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
A range of industrial by-products are currently under the consideration as cost-effective alternatives to conventional sorbent materials for environmental clean-up and remediation applications. Bauxite residue (red mud) has demonstrated exceptionally high potential for the immobilization of cationic pollutants. Due to heterogeneity of such material, determination of the role of individual mineral phases in the overall sorption mechanism is a challenging task. To enlighten the mechanism of Co(II) sorption by mineral assemblage of the red mud, sequential extraction analysis of Co-loaded sample was combined with the microscopic and spectroscopic studies performed by Scanning Field Emission Electron Microscope (FE-SEM), Energy Dispersive Spectroscopy (EDS) and X-ray Photoelectron Spectroscopy (XPS). Sorbed Co(II) ions were found associated with operationally defined Fe,Mn-oxide and carbonate/acid soluble fractions. Binding of Co(II) by the red mud was achieved primarily by means of chemiso...rption/surface precipitation on Fe- and Ti-oxides. In coexistence with these highly selective surfaces, gibbsite and silica appeared to be low affinity sites for Co(II). Incongruent dissolution of sodalite phase was detected, indicating that its function was not to ensure sorption centers, but to increase the solution pH creating favorable environment for Co(II) binding by Fe- and Ti-oxides. The results demonstrate high stability of sorbed Co(II) and synergistic action of mineral constituents as essentially important property for red mud implementation as a purifying and remediation agent. (C) 2016 Elsevier B.V. All rights reserved.
Кључне речи:
Red mud / Co(II) / Sorption mechanism / Sequential extraction / SEM/EDS / XPSИзвор:
Colloids and Surfaces. A: Physicochemical and Engineering Aspects, 2016, 508, 8-20Финансирање / пројекти:
- Нове технологије за мониторинг и заштиту животног окружења од штетних хемијских супстанци и радијационог оптерећења (RS-43009)
- Функционални, функционализовани и усавршени нано материјали (RS-45005)
- Fundacao para a Ciencia e Tecnologia do Ministerio da Ciencia, Tecnologia e Ensino Superior (FCT/MCTES) [UID/FIS/00068/2013]
DOI: 10.1016/j.colsurfa.2016.08.011
ISSN: 0927-7757; 1873-4359
WoS: 000384958000002
Scopus: 2-s2.0-84982181916
Колекције
Институција/група
VinčaTY - JOUR AU - Milenković, A. AU - Smičiklas, Ivana D. AU - Bundaleski, Nenad AU - Teodoro, Orlando M. N. D. AU - Veljović, Đorđe N. AU - Vukelić, Nikola S. PY - 2016 UR - https://vinar.vin.bg.ac.rs/handle/123456789/1266 AB - A range of industrial by-products are currently under the consideration as cost-effective alternatives to conventional sorbent materials for environmental clean-up and remediation applications. Bauxite residue (red mud) has demonstrated exceptionally high potential for the immobilization of cationic pollutants. Due to heterogeneity of such material, determination of the role of individual mineral phases in the overall sorption mechanism is a challenging task. To enlighten the mechanism of Co(II) sorption by mineral assemblage of the red mud, sequential extraction analysis of Co-loaded sample was combined with the microscopic and spectroscopic studies performed by Scanning Field Emission Electron Microscope (FE-SEM), Energy Dispersive Spectroscopy (EDS) and X-ray Photoelectron Spectroscopy (XPS). Sorbed Co(II) ions were found associated with operationally defined Fe,Mn-oxide and carbonate/acid soluble fractions. Binding of Co(II) by the red mud was achieved primarily by means of chemisorption/surface precipitation on Fe- and Ti-oxides. In coexistence with these highly selective surfaces, gibbsite and silica appeared to be low affinity sites for Co(II). Incongruent dissolution of sodalite phase was detected, indicating that its function was not to ensure sorption centers, but to increase the solution pH creating favorable environment for Co(II) binding by Fe- and Ti-oxides. The results demonstrate high stability of sorbed Co(II) and synergistic action of mineral constituents as essentially important property for red mud implementation as a purifying and remediation agent. (C) 2016 Elsevier B.V. All rights reserved. T2 - Colloids and Surfaces. A: Physicochemical and Engineering Aspects T1 - The role of different minerals from red mud assemblage in Co(II) sorption mechanism VL - 508 SP - 8 EP - 20 DO - 10.1016/j.colsurfa.2016.08.011 ER -
@article{ author = "Milenković, A. and Smičiklas, Ivana D. and Bundaleski, Nenad and Teodoro, Orlando M. N. D. and Veljović, Đorđe N. and Vukelić, Nikola S.", year = "2016", abstract = "A range of industrial by-products are currently under the consideration as cost-effective alternatives to conventional sorbent materials for environmental clean-up and remediation applications. Bauxite residue (red mud) has demonstrated exceptionally high potential for the immobilization of cationic pollutants. Due to heterogeneity of such material, determination of the role of individual mineral phases in the overall sorption mechanism is a challenging task. To enlighten the mechanism of Co(II) sorption by mineral assemblage of the red mud, sequential extraction analysis of Co-loaded sample was combined with the microscopic and spectroscopic studies performed by Scanning Field Emission Electron Microscope (FE-SEM), Energy Dispersive Spectroscopy (EDS) and X-ray Photoelectron Spectroscopy (XPS). Sorbed Co(II) ions were found associated with operationally defined Fe,Mn-oxide and carbonate/acid soluble fractions. Binding of Co(II) by the red mud was achieved primarily by means of chemisorption/surface precipitation on Fe- and Ti-oxides. In coexistence with these highly selective surfaces, gibbsite and silica appeared to be low affinity sites for Co(II). Incongruent dissolution of sodalite phase was detected, indicating that its function was not to ensure sorption centers, but to increase the solution pH creating favorable environment for Co(II) binding by Fe- and Ti-oxides. The results demonstrate high stability of sorbed Co(II) and synergistic action of mineral constituents as essentially important property for red mud implementation as a purifying and remediation agent. (C) 2016 Elsevier B.V. All rights reserved.", journal = "Colloids and Surfaces. A: Physicochemical and Engineering Aspects", title = "The role of different minerals from red mud assemblage in Co(II) sorption mechanism", volume = "508", pages = "8-20", doi = "10.1016/j.colsurfa.2016.08.011" }
Milenković, A., Smičiklas, I. D., Bundaleski, N., Teodoro, O. M. N. D., Veljović, Đ. N.,& Vukelić, N. S.. (2016). The role of different minerals from red mud assemblage in Co(II) sorption mechanism. in Colloids and Surfaces. A: Physicochemical and Engineering Aspects, 508, 8-20. https://doi.org/10.1016/j.colsurfa.2016.08.011
Milenković A, Smičiklas ID, Bundaleski N, Teodoro OMND, Veljović ĐN, Vukelić NS. The role of different minerals from red mud assemblage in Co(II) sorption mechanism. in Colloids and Surfaces. A: Physicochemical and Engineering Aspects. 2016;508:8-20. doi:10.1016/j.colsurfa.2016.08.011 .
Milenković, A., Smičiklas, Ivana D., Bundaleski, Nenad, Teodoro, Orlando M. N. D., Veljović, Đorđe N., Vukelić, Nikola S., "The role of different minerals from red mud assemblage in Co(II) sorption mechanism" in Colloids and Surfaces. A: Physicochemical and Engineering Aspects, 508 (2016):8-20, https://doi.org/10.1016/j.colsurfa.2016.08.011 . .