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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 | 2021-03-10T13:26:37Z | |
dc.date.available | 2021-03-10T13:26:37Z | |
dc.date.issued | 2017 | |
dc.identifier.issn | 0350-820X | |
dc.identifier.uri | http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3627 | |
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 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. | en |
dc.publisher | Međunarodni Institut za nauku o sinterovanju, Beograd | |
dc.rights | openAccess | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.source | Science of Sintering | |
dc.subject | Yeast | en |
dc.subject | Sintering | en |
dc.subject | Porous wollastonite ceramics | en |
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 | |
dc.citation.epage | 246 | |
dc.citation.issue | 3 | |
dc.citation.other | 49(3): 235-246 | |
dc.citation.rank | M23 | |
dc.citation.spage | 235 | |
dc.citation.volume | 49 | |
dc.identifier.doi | 10.2298/SOS1703235O | |
dc.identifier.fulltext | http://TechnoRep.tmf.bg.ac.rs/bitstream/id/1472/3624.pdf | |
dc.identifier.scopus | 2-s2.0-85037839299 | |
dc.identifier.wos | 000412888800003 | |
dc.type.version | publishedVersion |