Synthesis of composite by application of mixed Fe, Mg (hydr)oxides coatings onto bentonite - A use for the removal of Pb(II) from water
Нема приказа
Аутори
Ranđelović, Marjan S.Purenović, Milovan M.
Zarubica, Aleksandra R.
Purenović, Jelena M.
Matović, Branko
Momčilović, Milan Z.
Чланак у часопису
Метаподаци
Приказ свих података о документуАпстракт
The procedure for obtaining a bentonite based composite involves the application of mixed Fe and Mg hydroxides coatings onto bentonite particles in aqueous suspension and subsequent thermal treatment of the solid phase at 498K. Structural and textural modifications of montmorillonite which occurred during the synthesis of composite were confirmed by XRD technique and N-2 adsorption at 77K. The composite structure was found to be less ordered, while its specific surface area was about two times higher than the specific surface area of the starting/native bentonite. The effectiveness of the composite in Pb(II) removal from aqueous solutions at different initial concentrations, pH and ionic strengths of the solutions was examined. The equilibrium adsorption data were analyzed using three widely applied isotherms: Langmuir, Freundlich and Dubinin-Radushkevich. The composite effectively removes both ionic and colloidal forms of Pb(II) from water and the maximum adsorption capacity obtained ...from the Langmuir equation was 95.88 mg/g. The main mechanisms of Pb(II) removal at low pH values were ion-exchange and outer-sphere surface complexation. (C) 2011 Elsevier B.V. All rights reserved.
Кључне речи:
Bentonite / Bentonite based composite / Pb(II) removal / AdsorptionИзвор:
Journal of Hazardous Materials, 2012, 199, 367-374Финансирање / пројекти:
- Ministry of Science and Technological Development of the Republic of Serbia [TR19031]
DOI: 10.1016/j.jhazmat.2011.11.025
ISSN: 0304-3894
PubMed: 22137176
WoS: 000299977000048
Scopus: 2-s2.0-83955165269
Колекције
Институција/група
VinčaTY - JOUR AU - Ranđelović, Marjan S. AU - Purenović, Milovan M. AU - Zarubica, Aleksandra R. AU - Purenović, Jelena M. AU - Matović, Branko AU - Momčilović, Milan Z. PY - 2012 UR - https://vinar.vin.bg.ac.rs/handle/123456789/4676 AB - The procedure for obtaining a bentonite based composite involves the application of mixed Fe and Mg hydroxides coatings onto bentonite particles in aqueous suspension and subsequent thermal treatment of the solid phase at 498K. Structural and textural modifications of montmorillonite which occurred during the synthesis of composite were confirmed by XRD technique and N-2 adsorption at 77K. The composite structure was found to be less ordered, while its specific surface area was about two times higher than the specific surface area of the starting/native bentonite. The effectiveness of the composite in Pb(II) removal from aqueous solutions at different initial concentrations, pH and ionic strengths of the solutions was examined. The equilibrium adsorption data were analyzed using three widely applied isotherms: Langmuir, Freundlich and Dubinin-Radushkevich. The composite effectively removes both ionic and colloidal forms of Pb(II) from water and the maximum adsorption capacity obtained from the Langmuir equation was 95.88 mg/g. The main mechanisms of Pb(II) removal at low pH values were ion-exchange and outer-sphere surface complexation. (C) 2011 Elsevier B.V. All rights reserved. T2 - Journal of Hazardous Materials T1 - Synthesis of composite by application of mixed Fe, Mg (hydr)oxides coatings onto bentonite - A use for the removal of Pb(II) from water VL - 199 SP - 367 EP - 374 DO - 10.1016/j.jhazmat.2011.11.025 ER -
@article{ author = "Ranđelović, Marjan S. and Purenović, Milovan M. and Zarubica, Aleksandra R. and Purenović, Jelena M. and Matović, Branko and Momčilović, Milan Z.", year = "2012", abstract = "The procedure for obtaining a bentonite based composite involves the application of mixed Fe and Mg hydroxides coatings onto bentonite particles in aqueous suspension and subsequent thermal treatment of the solid phase at 498K. Structural and textural modifications of montmorillonite which occurred during the synthesis of composite were confirmed by XRD technique and N-2 adsorption at 77K. The composite structure was found to be less ordered, while its specific surface area was about two times higher than the specific surface area of the starting/native bentonite. The effectiveness of the composite in Pb(II) removal from aqueous solutions at different initial concentrations, pH and ionic strengths of the solutions was examined. The equilibrium adsorption data were analyzed using three widely applied isotherms: Langmuir, Freundlich and Dubinin-Radushkevich. The composite effectively removes both ionic and colloidal forms of Pb(II) from water and the maximum adsorption capacity obtained from the Langmuir equation was 95.88 mg/g. The main mechanisms of Pb(II) removal at low pH values were ion-exchange and outer-sphere surface complexation. (C) 2011 Elsevier B.V. All rights reserved.", journal = "Journal of Hazardous Materials", title = "Synthesis of composite by application of mixed Fe, Mg (hydr)oxides coatings onto bentonite - A use for the removal of Pb(II) from water", volume = "199", pages = "367-374", doi = "10.1016/j.jhazmat.2011.11.025" }
Ranđelović, M. S., Purenović, M. M., Zarubica, A. R., Purenović, J. M., Matović, B.,& Momčilović, M. Z.. (2012). Synthesis of composite by application of mixed Fe, Mg (hydr)oxides coatings onto bentonite - A use for the removal of Pb(II) from water. in Journal of Hazardous Materials, 199, 367-374. https://doi.org/10.1016/j.jhazmat.2011.11.025
Ranđelović MS, Purenović MM, Zarubica AR, Purenović JM, Matović B, Momčilović MZ. Synthesis of composite by application of mixed Fe, Mg (hydr)oxides coatings onto bentonite - A use for the removal of Pb(II) from water. in Journal of Hazardous Materials. 2012;199:367-374. doi:10.1016/j.jhazmat.2011.11.025 .
Ranđelović, Marjan S., Purenović, Milovan M., Zarubica, Aleksandra R., Purenović, Jelena M., Matović, Branko, Momčilović, Milan Z., "Synthesis of composite by application of mixed Fe, Mg (hydr)oxides coatings onto bentonite - A use for the removal of Pb(II) from water" in Journal of Hazardous Materials, 199 (2012):367-374, https://doi.org/10.1016/j.jhazmat.2011.11.025 . .