. "Dou\u0161ov\u00E1, Barbora" . "P\u0159\u00EDprava modifikovan\u00FDch sorbent\u016F na b\u00E1zi j\u00EDlov\u00FDch materi\u00E1l\u016F"@cs . "Pou\u017Eit\u00ED j\u00EDlov\u00FDch materi\u00E1l\u016F jako selektivn\u00EDch sorbet\u016F pro odstran\u011Bn\u00ED \u0161kodliv\u00FDch l\u00E1tek je velice efektivn\u00ED a \u00FA\u010Dinn\u00E9. P\u0159\u00EDrodn\u00ED kaolin byl tepeln\u011B upravov\u00E1n na metakaolin a n\u00E1sledn\u011B rehydratov\u00E1n p\u0159i r\u016Fzn\u00FDch teplot\u00E1ch na vysoce por\u00E9zn\u00ED sorbent. Byla provedena kinetika t\u00E9to dehydratace s n\u00E1slednou charakterizac\u00ED vznikl\u00E9 f\u00E1ze pomoc\u00ED RTG difrakce, I\u010C spektrometrie, m\u011B\u0159en\u00ED specifick\u00E9ho povrchu a distribuce p\u00F3r\u016F. V n\u011Bkter\u00FDch p\u0159\u00EDpadech byl z\u00EDskan\u00FD kaolin modifikov\u00E1n kationem Fe3+ pro selektivn\u00ED adsorpci anion\u016F. Na p\u0159ipraven\u00FDch materi\u00E1lech pak byly provedeny sorpce oxoaniont\u016F As a Se. Byla sledov\u00E1na z\u00E1vislost \u00FA\u010Dinnosti sorpce na fyzik\u00E1ln\u011B chemick\u00FDch podm\u00EDnk\u00E1ch experimentu (pH, koncentrace iont\u016F) a povrchov\u00FDch vlastnostech materi\u00E1lu (specifick\u00FD povrch, zp\u016Fsob modifikace). Adsorp\u010Dn\u00ED vlastnosti nov\u011B p\u0159ipraven\u00FDch sorbent\u016F byly porovn\u00E1ny s kalcinovan\u00FDmi kaoliny v p\u016Fvodn\u00ED i modifikovan\u00E9 form\u011B." . "5"^^ . "Srn\u00ED, CZ" . . "4"^^ . "Pou\u017Eit\u00ED j\u00EDlov\u00FDch materi\u00E1l\u016F jako selektivn\u00EDch sorbet\u016F pro odstran\u011Bn\u00ED \u0161kodliv\u00FDch l\u00E1tek je velice efektivn\u00ED a \u00FA\u010Dinn\u00E9. P\u0159\u00EDrodn\u00ED kaolin byl tepeln\u011B upravov\u00E1n na metakaolin a n\u00E1sledn\u011B rehydratov\u00E1n p\u0159i r\u016Fzn\u00FDch teplot\u00E1ch na vysoce por\u00E9zn\u00ED sorbent. Byla provedena kinetika t\u00E9to dehydratace s n\u00E1slednou charakterizac\u00ED vznikl\u00E9 f\u00E1ze pomoc\u00ED RTG difrakce, I\u010C spektrometrie, m\u011B\u0159en\u00ED specifick\u00E9ho povrchu a distribuce p\u00F3r\u016F. V n\u011Bkter\u00FDch p\u0159\u00EDpadech byl z\u00EDskan\u00FD kaolin modifikov\u00E1n kationem Fe3+ pro selektivn\u00ED adsorpci anion\u016F. Na p\u0159ipraven\u00FDch materi\u00E1lech pak byly provedeny sorpce oxoaniont\u016F As a Se. Byla sledov\u00E1na z\u00E1vislost \u00FA\u010Dinnosti sorpce na fyzik\u00E1ln\u011B chemick\u00FDch podm\u00EDnk\u00E1ch experimentu (pH, koncentrace iont\u016F) a povrchov\u00FDch vlastnostech materi\u00E1lu (specifick\u00FD povrch, zp\u016Fsob modifikace). Adsorp\u010Dn\u00ED vlastnosti nov\u011B p\u0159ipraven\u00FDch sorbent\u016F byly porovn\u00E1ny s kalcinovan\u00FDmi kaoliny v p\u016Fvodn\u00ED i modifikovan\u00E9 form\u011B."@cs . . "P(IAA401250701), Z(MSM6046137302)" . . . . "336185" . "4"^^ . "\u010Cesk\u00E1 spole\u010Dnost chemick\u00E9ho in\u017Een\u00FDrstv\u00ED" . . . "Praha" . . "2009-10-19+02:00"^^ . . "Preparation modified sorbents on base clay materials"@en . . "RIV/60461373:22310/09:00021579" . . "RIV/60461373:22310/09:00021579!RIV10-MSM-22310___" . "22310" . . . "P\u0159\u00EDprava modifikovan\u00FDch sorbent\u016F na b\u00E1zi j\u00EDlov\u00FDch materi\u00E1l\u016F"@cs . . "P\u0159\u00EDprava modifikovan\u00FDch sorbent\u016F na b\u00E1zi j\u00EDlov\u00FDch materi\u00E1l\u016F" . "Kolou\u0161ek, David" . "CHISA 2009" . . "Lhotka, Miloslav" . . "P\u0159\u00EDprava modifikovan\u00FDch sorbent\u016F na b\u00E1zi j\u00EDlov\u00FDch materi\u00E1l\u016F" . "The use of clay materials as selective sorbents of different contaminants belongs to very efficient methods. A natural kaolin was calcined to metakaolin and than rehydrated at different temperatures to a highly porous sorbent. The kinetics of this process was measured, with subsequent XRD and IR characterization of arised phases. The specific surface and pore distribution of new phases were also assigned. In addition, the obtained kaolin was also pre-treated with Fe3+ ions to improve its sorption affinity to anionic particles. Fe-modified kaolin was then used for the adsorption of As/Se oxyanions, and the adsorption efficiency in dependence on the physical chemical properties (pH, As/Se concentration) of initial solution and the surface properties of sorbent (specific surface, modification method) were investigated. The adsrption properties of newly prepared sorbents were finaly compared with calcined kaolines in both raw and modified forms."@en . "978-80-86059-51-8" . "Machovi\u010D, Vladim\u00EDr" . "Preparation modified sorbents on base clay materials"@en . . . "Preparation modified sorbents on base clay materials"@en . "[CBE088359D8B]" .