Removal of aqueous manganese using the natural zeolitic tuff from the Vranjska Banja deposit in Serbia
Samo za registrovane korisnike
2009
Autori
Rajić, NevenkaStojaković, Đorđe
Jevtić, Sanja
Zabukovec-Logar, Nataša
Kovač, Janez
Kaučič, Venčeslav
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
The natural zeolite tuff from the Vranjska Banja deposit (Serbia) has been studied as sorbent for Mn(II) ions from aqueous solutions. The zeolite sample containing mainly clinoptilolite (more than 70%) removes Mn(II) ions by ion-exchange process, which was confirmed by X-ray photoelectron spectroscopy (XPS) and energy dispersive X-ray analysis (EDXS). XPS showed that there is no surface accumulation of Mn but an almost uniform distribution inside the sorbent; EDXS confirmed that Mn(II) replaced the clinoptilolite Na counter ions. The sorption isotherms were studied at 298 K by batch experiments showing that the Mn(II) removal is best described by the Langmuir-Freundlich or Sips model. The kinetics followed the pseudo-second-order model, the activation energy being 128 kJ mol(-1). The intra-particle diffusion is not the rate-controlling step in the sorption of Mn(II) on clinoptilolite. Thermodynamic data suggest spontaneity of the endothermic ion-exchange process in the 298-338 K range.
Ključne reči:
Clinoptilolite / Manganese removal / Kinetics / Zeolite / Langmuir-Freundlich isothermIzvor:
Journal of Hazardous Materials, 2009, 172, 2-3, 1450-1457Izdavač:
- Elsevier, Amsterdam
Finansiranje / projekti:
- Strukturne modifikacije i reakcije mikroporoznih i mezoporoznih materijala (RS-MESTD-MPN2006-2010-142055)
- Eureka [E14208]
DOI: 10.1016/j.jhazmat.2009.08.011
ISSN: 0304-3894
PubMed: 19720456
WoS: 000271980800124
Scopus: 2-s2.0-71849118960
Institucija/grupa
Tehnološko-metalurški fakultetTY - JOUR AU - Rajić, Nevenka AU - Stojaković, Đorđe AU - Jevtić, Sanja AU - Zabukovec-Logar, Nataša AU - Kovač, Janez AU - Kaučič, Venčeslav PY - 2009 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1467 AB - The natural zeolite tuff from the Vranjska Banja deposit (Serbia) has been studied as sorbent for Mn(II) ions from aqueous solutions. The zeolite sample containing mainly clinoptilolite (more than 70%) removes Mn(II) ions by ion-exchange process, which was confirmed by X-ray photoelectron spectroscopy (XPS) and energy dispersive X-ray analysis (EDXS). XPS showed that there is no surface accumulation of Mn but an almost uniform distribution inside the sorbent; EDXS confirmed that Mn(II) replaced the clinoptilolite Na counter ions. The sorption isotherms were studied at 298 K by batch experiments showing that the Mn(II) removal is best described by the Langmuir-Freundlich or Sips model. The kinetics followed the pseudo-second-order model, the activation energy being 128 kJ mol(-1). The intra-particle diffusion is not the rate-controlling step in the sorption of Mn(II) on clinoptilolite. Thermodynamic data suggest spontaneity of the endothermic ion-exchange process in the 298-338 K range. PB - Elsevier, Amsterdam T2 - Journal of Hazardous Materials T1 - Removal of aqueous manganese using the natural zeolitic tuff from the Vranjska Banja deposit in Serbia EP - 1457 IS - 2-3 SP - 1450 VL - 172 DO - 10.1016/j.jhazmat.2009.08.011 ER -
@article{ author = "Rajić, Nevenka and Stojaković, Đorđe and Jevtić, Sanja and Zabukovec-Logar, Nataša and Kovač, Janez and Kaučič, Venčeslav", year = "2009", abstract = "The natural zeolite tuff from the Vranjska Banja deposit (Serbia) has been studied as sorbent for Mn(II) ions from aqueous solutions. The zeolite sample containing mainly clinoptilolite (more than 70%) removes Mn(II) ions by ion-exchange process, which was confirmed by X-ray photoelectron spectroscopy (XPS) and energy dispersive X-ray analysis (EDXS). XPS showed that there is no surface accumulation of Mn but an almost uniform distribution inside the sorbent; EDXS confirmed that Mn(II) replaced the clinoptilolite Na counter ions. The sorption isotherms were studied at 298 K by batch experiments showing that the Mn(II) removal is best described by the Langmuir-Freundlich or Sips model. The kinetics followed the pseudo-second-order model, the activation energy being 128 kJ mol(-1). The intra-particle diffusion is not the rate-controlling step in the sorption of Mn(II) on clinoptilolite. Thermodynamic data suggest spontaneity of the endothermic ion-exchange process in the 298-338 K range.", publisher = "Elsevier, Amsterdam", journal = "Journal of Hazardous Materials", title = "Removal of aqueous manganese using the natural zeolitic tuff from the Vranjska Banja deposit in Serbia", pages = "1457-1450", number = "2-3", volume = "172", doi = "10.1016/j.jhazmat.2009.08.011" }
Rajić, N., Stojaković, Đ., Jevtić, S., Zabukovec-Logar, N., Kovač, J.,& Kaučič, V.. (2009). Removal of aqueous manganese using the natural zeolitic tuff from the Vranjska Banja deposit in Serbia. in Journal of Hazardous Materials Elsevier, Amsterdam., 172(2-3), 1450-1457. https://doi.org/10.1016/j.jhazmat.2009.08.011
Rajić N, Stojaković Đ, Jevtić S, Zabukovec-Logar N, Kovač J, Kaučič V. Removal of aqueous manganese using the natural zeolitic tuff from the Vranjska Banja deposit in Serbia. in Journal of Hazardous Materials. 2009;172(2-3):1450-1457. doi:10.1016/j.jhazmat.2009.08.011 .
Rajić, Nevenka, Stojaković, Đorđe, Jevtić, Sanja, Zabukovec-Logar, Nataša, Kovač, Janez, Kaučič, Venčeslav, "Removal of aqueous manganese using the natural zeolitic tuff from the Vranjska Banja deposit in Serbia" in Journal of Hazardous Materials, 172, no. 2-3 (2009):1450-1457, https://doi.org/10.1016/j.jhazmat.2009.08.011 . .