TY  - JOUR
AU  - Daković, Aleksandra
AU  - Matijašević, Srđan
AU  - Rottinghaus, George E.
AU  - Dondur, Vera
AU  - Pietrass, Tanja
AU  - Clewett, Catherine F. M.
PY  - 2007
UR  - https://ritnms.itnms.ac.rs/handle/123456789/115
AB  - Adsorption of zearalenone (ZEN) by natural zeolitic tuff, modified with different numbers of octadecyidimethylbenzylammonium (ODMBA) ions, was investigated. The results of solid-state H-1 NMR analysis of the starting material suggested that zeolitic tuff is rich in mineral clinop- tilolite, confirming the results of previous thermal stability study. Three organozeolites (OZ-2, OZ-5, and CZ-10) were prepared with ODMBA surface coverages of 20, 50, and 100 mmol/100 g. The mechanism of ZEN sorption by the three organozeolites was investigated through the determination of the adsorption isotherms at pH 3, 7, and 9. Adsorption of ZEN by organozeolites was best represented by a linear type of isotherm at pH 3, while at pH 7 and 9, adsorption of ZEN by organozeolites followed a nonlinear (Langmuir) type of isotherm. The different shape of the ZEN adsorption isotherms for the three organozeolites with different levels of ODMBA at the zeolitic surface at different pH values suggests that the adsorption mechanism may be dependent on the form of ZEN in solution. Since, at pH 3, ZEN exists in solution as the neutral form, the linear isotherms at pH 3 suggested that hydrophobic interactions are probably responsible for adsorption of neutral, hydrophobic ZEN onto the hydrophobic surface of the organozeolites. At pH 7, the phenolate anion is present in water solution, while at pH 9, ZEN is almost entirely in the anionic form. The nonlinear isotherms obtained for ZEN adsorption by the three organozeolites suggest that sorption appears to be the result of the adsorption process as well as partitioning.
PB  - Academic Press Inc Elsevier Science, San Diego
T2  - Journal of Colloid and Interface Science
T1  - Adsorption of zearalenone by organomodified natural zeolitic tuff
EP  - 13
IS  - 1
SP  - 8
VL  - 311
DO  - 10.1016/j.jcis.2007.02.033
UR  - conv_525
ER  - 

@article{
author = "Daković, Aleksandra and Matijašević, Srđan and Rottinghaus, George E. and Dondur, Vera and Pietrass, Tanja and Clewett, Catherine F. M.",
year = "2007",
abstract = "Adsorption of zearalenone (ZEN) by natural zeolitic tuff, modified with different numbers of octadecyidimethylbenzylammonium (ODMBA) ions, was investigated. The results of solid-state H-1 NMR analysis of the starting material suggested that zeolitic tuff is rich in mineral clinop- tilolite, confirming the results of previous thermal stability study. Three organozeolites (OZ-2, OZ-5, and CZ-10) were prepared with ODMBA surface coverages of 20, 50, and 100 mmol/100 g. The mechanism of ZEN sorption by the three organozeolites was investigated through the determination of the adsorption isotherms at pH 3, 7, and 9. Adsorption of ZEN by organozeolites was best represented by a linear type of isotherm at pH 3, while at pH 7 and 9, adsorption of ZEN by organozeolites followed a nonlinear (Langmuir) type of isotherm. The different shape of the ZEN adsorption isotherms for the three organozeolites with different levels of ODMBA at the zeolitic surface at different pH values suggests that the adsorption mechanism may be dependent on the form of ZEN in solution. Since, at pH 3, ZEN exists in solution as the neutral form, the linear isotherms at pH 3 suggested that hydrophobic interactions are probably responsible for adsorption of neutral, hydrophobic ZEN onto the hydrophobic surface of the organozeolites. At pH 7, the phenolate anion is present in water solution, while at pH 9, ZEN is almost entirely in the anionic form. The nonlinear isotherms obtained for ZEN adsorption by the three organozeolites suggest that sorption appears to be the result of the adsorption process as well as partitioning.",
publisher = "Academic Press Inc Elsevier Science, San Diego",
journal = "Journal of Colloid and Interface Science",
title = "Adsorption of zearalenone by organomodified natural zeolitic tuff",
pages = "13-8",
number = "1",
volume = "311",
doi = "10.1016/j.jcis.2007.02.033",
url = "conv_525"
}

Daković, A., Matijašević, S., Rottinghaus, G. E., Dondur, V., Pietrass, T.,& Clewett, C. F. M.. (2007). Adsorption of zearalenone by organomodified natural zeolitic tuff. in Journal of Colloid and Interface Science
Academic Press Inc Elsevier Science, San Diego., 311(1), 8-13.
https://doi.org/10.1016/j.jcis.2007.02.033
conv_525

Daković A, Matijašević S, Rottinghaus GE, Dondur V, Pietrass T, Clewett CFM. Adsorption of zearalenone by organomodified natural zeolitic tuff. in Journal of Colloid and Interface Science. 2007;311(1):8-13.
doi:10.1016/j.jcis.2007.02.033
conv_525 .

Daković, Aleksandra, Matijašević, Srđan, Rottinghaus, George E., Dondur, Vera, Pietrass, Tanja, Clewett, Catherine F. M., "Adsorption of zearalenone by organomodified natural zeolitic tuff" in Journal of Colloid and Interface Science, 311, no. 1 (2007):8-13,
https://doi.org/10.1016/j.jcis.2007.02.033 .,
conv_525 .