Tungstophosphoric acid and BEA zeolite composites were synthesized by wetness impregnation, followed by ultrasonication and calcination. Composites were characterized using Raman spectroscopy, thermal analysis and pH-dependent zeta potential. Spectroscopic measurements indicated the interaction of acid and the support by binding of polyanion terminal oxygens and BEA extra framework H+ via hydrogen bonds. Evaluation of prepared composites revealed their higher efficiency in nicosulfuron adsorption, in comparison to parent zeolite. All prepared composites showed excellent adsorption properties for pesticide removal in the range 12.1-25.8 mg of nicosulfuron per gram of investigated sample. Better adsorption capacity was found for sonicated samples in comparison to as-synthesized and calcined ones. It was found that the amount of polyanion in the composites and the extent of the particles surface charge are not crucial for the adsorption application, it is rather the uniformity of the zeol...ite surface coverage with the polyanion that is was more important.
TY - JOUR
AU - Bajuk-Bogdanović, Danica
AU - Jović, Aleksandar
AU - Nedić-Vasiljević, Bojana
AU - Milojević-Rakić, Maja
AU - Kragović, Milan
AU - Krajišnik, Danina
AU - Holclajtner-Antunović, Ivanka
AU - Dondur, Vera
PY - 2017
UR - http://farfar.pharmacy.bg.ac.rs/handle/123456789/2873
AB - Tungstophosphoric acid and BEA zeolite composites were synthesized by wetness impregnation, followed by ultrasonication and calcination. Composites were characterized using Raman spectroscopy, thermal analysis and pH-dependent zeta potential. Spectroscopic measurements indicated the interaction of acid and the support by binding of polyanion terminal oxygens and BEA extra framework H+ via hydrogen bonds. Evaluation of prepared composites revealed their higher efficiency in nicosulfuron adsorption, in comparison to parent zeolite. All prepared composites showed excellent adsorption properties for pesticide removal in the range 12.1-25.8 mg of nicosulfuron per gram of investigated sample. Better adsorption capacity was found for sonicated samples in comparison to as-synthesized and calcined ones. It was found that the amount of polyanion in the composites and the extent of the particles surface charge are not crucial for the adsorption application, it is rather the uniformity of the zeolite surface coverage with the polyanion that is was more important.
PB - Elsevier Science BV, Amsterdam
T2 - Materials Science and Engineering B: Advanced Functional Solid-State Materials
T1 - 12-Tungstophosphoric acid/BEA zeolite composites - Characterization and application for pesticide removal
VL - 225
SP - 60
EP - 67
DO - 10.1016/j.mseb.2017.08.011
UR - conv_3962
ER -
@article{
author = "Bajuk-Bogdanović, Danica and Jović, Aleksandar and Nedić-Vasiljević, Bojana and Milojević-Rakić, Maja and Kragović, Milan and Krajišnik, Danina and Holclajtner-Antunović, Ivanka and Dondur, Vera",
year = "2017",
abstract = "Tungstophosphoric acid and BEA zeolite composites were synthesized by wetness impregnation, followed by ultrasonication and calcination. Composites were characterized using Raman spectroscopy, thermal analysis and pH-dependent zeta potential. Spectroscopic measurements indicated the interaction of acid and the support by binding of polyanion terminal oxygens and BEA extra framework H+ via hydrogen bonds. Evaluation of prepared composites revealed their higher efficiency in nicosulfuron adsorption, in comparison to parent zeolite. All prepared composites showed excellent adsorption properties for pesticide removal in the range 12.1-25.8 mg of nicosulfuron per gram of investigated sample. Better adsorption capacity was found for sonicated samples in comparison to as-synthesized and calcined ones. It was found that the amount of polyanion in the composites and the extent of the particles surface charge are not crucial for the adsorption application, it is rather the uniformity of the zeolite surface coverage with the polyanion that is was more important.",
publisher = "Elsevier Science BV, Amsterdam",
journal = "Materials Science and Engineering B: Advanced Functional Solid-State Materials",
title = "12-Tungstophosphoric acid/BEA zeolite composites - Characterization and application for pesticide removal",
volume = "225",
pages = "60-67",
doi = "10.1016/j.mseb.2017.08.011",
url = "conv_3962"
}
Bajuk-Bogdanović, D., Jović, A., Nedić-Vasiljević, B., Milojević-Rakić, M., Kragović, M., Krajišnik, D., Holclajtner-Antunović, I.,& Dondur, V.. (2017). 12-Tungstophosphoric acid/BEA zeolite composites - Characterization and application for pesticide removal. in Materials Science and Engineering B: Advanced Functional Solid-State Materials
Elsevier Science BV, Amsterdam., 225, 60-67.
https://doi.org/10.1016/j.mseb.2017.08.011
conv_3962
Bajuk-Bogdanović D, Jović A, Nedić-Vasiljević B, Milojević-Rakić M, Kragović M, Krajišnik D, Holclajtner-Antunović I, Dondur V. 12-Tungstophosphoric acid/BEA zeolite composites - Characterization and application for pesticide removal. in Materials Science and Engineering B: Advanced Functional Solid-State Materials. 2017;225:60-67.
doi:10.1016/j.mseb.2017.08.011
conv_3962 .
