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Super/Subcritical Fluid Extractions for Preparation of the Crystalline Titania
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SYSNO ASEP 0341176 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Super/Subcritical Fluid Extractions for Preparation of the Crystalline Titania Tvůrce(i) Matějová, Lenka (UCHP-M) RID, ORCID, SAI
Cajthaml, Tomáš (MBU-M) RID, ORCID
Matěj, Z. (CZ)
Benada, Oldřich (MBU-M) ORCID, RID
Klusoň, Petr (UCHP-M) RID, ORCID, SAI
Šolcová, Olga (UCHP-M) RID, ORCID, SAIZdroj.dok. Journal of Supercritical Fluids. - : Elsevier - ISSN 0896-8446
Roč. 52, č. 2 (2010), s. 215-221Poč.str. 7 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova titania ; supercritical fluid extraction ; pressurised fluid extraction Vědní obor RIV CF - Fyzikální chemie a teoretická chemie CEP GP104/09/P290 GA ČR - Grantová agentura ČR GA104/09/0694 GA ČR - Grantová agentura ČR CEZ AV0Z40720504 - UCHP-M (2005-2011) AV0Z50200510 - MBU-M (2005-2011) UT WOS 000276115800007 DOI 10.1016/j.supflu.2009.12.008 Anotace Crystallinity, purity and texture of TiO2 powder in dependence on the treatment mode (purification) of an amorphous reaction semi-product (titania organogel) was studied. Standard calcination was compared with various extraction techniques using fluids in sub/supercritical state. The suitable combination of extraction solvents and extraction conditions (temperature and pressure) was judged to synthesize TiO2 powders crystalline phase (Anatase) with a high specific surface area and purity. The optimal results were achieved by combined extraction procedures - subcritical water extraction and supercritical fluid extraction or pressurised liquid extraction. Moreover the possible tuning of the TiO2 powder pore-size distribution by regulation of temperature at constant pressure for the combination of subcritical water extraction and pressurised liquid extraction was found. Pracoviště Ústav chemických procesů Kontakt Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Rok sběru 2011
Počet záznamů: 1