TY  - JOUR
AU  - Obradović, Nina
AU  - Filipović, Suzana
AU  - Rusmirović, Jelena
AU  - Postole, Georgeta
AU  - Marinković, Aleksandar
AU  - Radić, Danka
AU  - Rakić, Vesna M.
AU  - Pavlović, Vladimir B.
AU  - Auroux, Aline
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3627
AB  - In this paper, synthesis of porous wollastonite-based ceramics was reported. Ceramic precursor, methylhydrocyclosiloxane, together with micro-sized CaCO3, was used as starting material. After 20 min of ultrasound treatment, and calcination at 250 degrees C for 30 min, yeast as a pore-forming agent was added to the as-obtained powders. Sintering regime was set up based on the results obtained by differential thermal analysis. Prepared mixture was pressed into pallets and sintered at 900 degrees C for 1 h. After the sintering regime, porous wollastonite-based ceramics was obtained. The phase composition of the sintered samples as well as microstructures was analyzed by X-ray diffraction method and SEM. In a batch test, the influence of pH, contact time and initial ion concentration on adsorption efficiency of As+5, Cr+6, and phosphate ions on synthesized wollastonite-based ceramics were studied. Time-dependent adsorption was best described by pseudo-second-order kinetic model and Weber-Morris model that predicted intra-particle diffusion as a rate-controlling step of overall process. High adsorption capacities 39.97, 21.87, and 15.29 mgg(-1) were obtained for As+5, Cr+6, and phosphate ions, respectively.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Formation of Porous Wollastonite-based Ceramics after Sintering With Yeast as the Pore-forming Agent
EP  - 246
IS  - 3
SP  - 235
VL  - 49
DO  - 10.2298/SOS1703235O
ER  - 

@article{
author = "Obradović, Nina and Filipović, Suzana and Rusmirović, Jelena and Postole, Georgeta and Marinković, Aleksandar and Radić, Danka and Rakić, Vesna M. and Pavlović, Vladimir B. and Auroux, Aline",
year = "2017",
abstract = "In this paper, synthesis of porous wollastonite-based ceramics was reported. Ceramic precursor, methylhydrocyclosiloxane, together with micro-sized CaCO3, was used as starting material. After 20 min of ultrasound treatment, and calcination at 250 degrees C for 30 min, yeast as a pore-forming agent was added to the as-obtained powders. Sintering regime was set up based on the results obtained by differential thermal analysis. Prepared mixture was pressed into pallets and sintered at 900 degrees C for 1 h. After the sintering regime, porous wollastonite-based ceramics was obtained. The phase composition of the sintered samples as well as microstructures was analyzed by X-ray diffraction method and SEM. In a batch test, the influence of pH, contact time and initial ion concentration on adsorption efficiency of As+5, Cr+6, and phosphate ions on synthesized wollastonite-based ceramics were studied. Time-dependent adsorption was best described by pseudo-second-order kinetic model and Weber-Morris model that predicted intra-particle diffusion as a rate-controlling step of overall process. High adsorption capacities 39.97, 21.87, and 15.29 mgg(-1) were obtained for As+5, Cr+6, and phosphate ions, respectively.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Formation of Porous Wollastonite-based Ceramics after Sintering With Yeast as the Pore-forming Agent",
pages = "246-235",
number = "3",
volume = "49",
doi = "10.2298/SOS1703235O"
}

Obradović, N., Filipović, S., Rusmirović, J., Postole, G., Marinković, A., Radić, D., Rakić, V. M., Pavlović, V. B.,& Auroux, A.. (2017). Formation of Porous Wollastonite-based Ceramics after Sintering With Yeast as the Pore-forming Agent. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 49(3), 235-246.
https://doi.org/10.2298/SOS1703235O

Obradović N, Filipović S, Rusmirović J, Postole G, Marinković A, Radić D, Rakić VM, Pavlović VB, Auroux A. Formation of Porous Wollastonite-based Ceramics after Sintering With Yeast as the Pore-forming Agent. in Science of Sintering. 2017;49(3):235-246.
doi:10.2298/SOS1703235O .

Obradović, Nina, Filipović, Suzana, Rusmirović, Jelena, Postole, Georgeta, Marinković, Aleksandar, Radić, Danka, Rakić, Vesna M., Pavlović, Vladimir B., Auroux, Aline, "Formation of Porous Wollastonite-based Ceramics after Sintering With Yeast as the Pore-forming Agent" in Science of Sintering, 49, no. 3 (2017):235-246,
https://doi.org/10.2298/SOS1703235O . .

TY  - JOUR
AU  - Rakić, Vesna M.
AU  - Rajić, Nevenka
AU  - Daković, Aleksandra
AU  - Auroux, Aline
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2503
AB  - In this study, adsorption of salicylic acid, acetylsalicylic acid and atenolol from aqueous solutions onto clinoptilolite modified with sorbed metallic cations (Cu(II), Zn(II), Ni(II) or Mn(II)) have been probed. Natural clays (kaolin and bentonite, pure or ion-exchanged by octadecyl dimethyl benzyl ammonium chloride) have been also probed as adsorbents. The adsorption was studied at 30 degrees C by titration microcalorimetry, employed to obtain the heats evolved as a result of adsorption. Adsorption experiments were performed under the same conditions, the equilibrium adsorbate concentrations were determined by fluorescence spectrophotometry. The maximal adsorption capacities of investigated solids against target pharmaceuticals lie in the range of 10(-5)-10(-6) mol/g. Modified minerals have shown different capacities in comparison with natural ones. The adsorption capacities are dependent on the characteristics of pharmaceutically active compound. The results obtained in this work show that natural materials can be used effectively in the removal of investigated pharmaceuticals by adsorption.
PB  - Elsevier, Amsterdam
T2  - Microporous and Mesoporous Materials
T1  - The adsorption of salicylic acid, acetylsalicylic acid and atenolol from aqueous solutions onto natural zeolites and clays: Clinoptilolite, bentonite and kaolin
EP  - 194
SP  - 185
VL  - 166
DO  - 10.1016/j.micromeso.2012.04.049
ER  - 

@article{
author = "Rakić, Vesna M. and Rajić, Nevenka and Daković, Aleksandra and Auroux, Aline",
year = "2013",
abstract = "In this study, adsorption of salicylic acid, acetylsalicylic acid and atenolol from aqueous solutions onto clinoptilolite modified with sorbed metallic cations (Cu(II), Zn(II), Ni(II) or Mn(II)) have been probed. Natural clays (kaolin and bentonite, pure or ion-exchanged by octadecyl dimethyl benzyl ammonium chloride) have been also probed as adsorbents. The adsorption was studied at 30 degrees C by titration microcalorimetry, employed to obtain the heats evolved as a result of adsorption. Adsorption experiments were performed under the same conditions, the equilibrium adsorbate concentrations were determined by fluorescence spectrophotometry. The maximal adsorption capacities of investigated solids against target pharmaceuticals lie in the range of 10(-5)-10(-6) mol/g. Modified minerals have shown different capacities in comparison with natural ones. The adsorption capacities are dependent on the characteristics of pharmaceutically active compound. The results obtained in this work show that natural materials can be used effectively in the removal of investigated pharmaceuticals by adsorption.",
publisher = "Elsevier, Amsterdam",
journal = "Microporous and Mesoporous Materials",
title = "The adsorption of salicylic acid, acetylsalicylic acid and atenolol from aqueous solutions onto natural zeolites and clays: Clinoptilolite, bentonite and kaolin",
pages = "194-185",
volume = "166",
doi = "10.1016/j.micromeso.2012.04.049"
}

Rakić, V. M., Rajić, N., Daković, A.,& Auroux, A.. (2013). The adsorption of salicylic acid, acetylsalicylic acid and atenolol from aqueous solutions onto natural zeolites and clays: Clinoptilolite, bentonite and kaolin. in Microporous and Mesoporous Materials
Elsevier, Amsterdam., 166, 185-194.
https://doi.org/10.1016/j.micromeso.2012.04.049

Rakić VM, Rajić N, Daković A, Auroux A. The adsorption of salicylic acid, acetylsalicylic acid and atenolol from aqueous solutions onto natural zeolites and clays: Clinoptilolite, bentonite and kaolin. in Microporous and Mesoporous Materials. 2013;166:185-194.
doi:10.1016/j.micromeso.2012.04.049 .

Rakić, Vesna M., Rajić, Nevenka, Daković, Aleksandra, Auroux, Aline, "The adsorption of salicylic acid, acetylsalicylic acid and atenolol from aqueous solutions onto natural zeolites and clays: Clinoptilolite, bentonite and kaolin" in Microporous and Mesoporous Materials, 166 (2013):185-194,
https://doi.org/10.1016/j.micromeso.2012.04.049 . .