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Formation of porous wollastonite-based ceramics after sintering with yeast as the pore-forming agent
dc.creator | Obradović, Nina | |
dc.creator | Filipović, Suzana | |
dc.creator | Rusmirović, Jelena | |
dc.creator | Postole, Georgeta | |
dc.creator | Marinković, Aleksandar | |
dc.creator | Radić, Danka | |
dc.creator | Rakić, Vesna M. | |
dc.creator | Pavlović, Vladimir B. | |
dc.creator | Auroux, Aline | |
dc.date.accessioned | 2018-04-11T10:12:16Z | |
dc.date.available | 2018-04-11T10:12:16Z | |
dc.date.issued | 2017 | |
dc.identifier.issn | 0350-820X (Print) | |
dc.identifier.issn | 1820-7413 | |
dc.identifier.uri | https://dais.sanu.ac.rs/123456789/2384 | |
dc.description.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 oC 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 oC 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. | en |
dc.format | 49 3 (2017) 235-246 | |
dc.format | application/pdf | |
dc.language | en | |
dc.publisher | Belgrade : International Institute for the Science of Sintering | |
dc.rights | openAccess | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.source | Science of Sintering | en |
dc.subject | porous wollastonite ceramics | |
dc.subject | yeast | |
dc.subject | sintering | |
dc.title | Formation of porous wollastonite-based ceramics after sintering with yeast as the pore-forming agent | en |
dc.type | article | |
dc.rights.license | BY | |
dcterms.abstract | Русмировић, Јелена; Ракић, Весна; Радић, Данка; Маринковић, Aлександар; Постоле, Георгета; Aуроуx, Aлине; Обрадовић, Нина; Павловић, Владимир Б.; Филиповић, Сузана; | |
dc.citation.spage | 235 | |
dc.citation.epage | 246 | |
dc.citation.volume | 49 | |
dc.citation.issue | 3 | |
dc.identifier.wos | 000412888800003 | |
dc.identifier.doi | 10.2298/SOS1703235O | |
dc.identifier.scopus | 2-s2.0-85037839299 | |
dc.type.version | publishedVersion | |
dc.identifier.fulltext | https://dais.sanu.ac.rs/bitstream/id/10387/Obradovic_Science-of-Sintering_2017_49_3_235-246.pdf | |
dc.identifier.rcub | https://hdl.handle.net/21.15107/rcub_dais_2384 |