Tailoring of Nanoporous TiO2 by Surfactant-Assisted Sol-Gel Method.

0091399 - UCHP-M 20070222 RIV FI eng C - Conference Paper (international conference)
Matějová, Lenka - Klusoň, P. - Bartková, H. - Cajthaml, Tomáš - Schneider, Petr - Šolcová, Olga
Tailoring of Nanoporous TiO2 by Surfactant-Assisted Sol-Gel Method.
[Šití nanoporézního oxidu titaničitého metodou sol-gel.]
Abstracts.. Turku: -, 2007, s. P2-45.
[EUROPACAT VIII. Turku/Abo (FI), 26.08.2007-31.08.2007]
R&D Projects: GA ČR(CZ) GD203/03/H140; GA AV ČR(CZ) IAA400720701
Institutional research plan: CEZ:AV0Z40720504; CEZ:AV0Z50200510
Keywords : nanostructures * sol-gel method * titania
Subject RIV: CF - Physical ; Theoretical Chemistry

Nanoporous Titania with various pore-size distributions was prepared by surfactant-mediated sol-gel synthesis controlled in inverse configuration. Great attention was devoted to preparation of titania in lamellar arrangement and to the treatment of prepared titania gels by a) calcination and b) combinated extraction by subcritic H2O and supercritic CO2. The influence of reaction conditions on the TiO2 pore-size distribution position and width was observed. Precise textural characteristics were obtained via physical adsorption of nitrogen, high-pressure mercury porosimetry and helium pycnometry. Changes in structural properties and possible sample impurities were recorded by SEM, XRD phase analysis and elemental analysis.

Byl připraven práškový nanoporézní oxid titaničitý s rozdílným poloměrem pórů metodou sol-gel.Velká pozornost byla věnována přípravě lamelární struktury a vhodnému zpracování titaničitého gelu 1) kalcinací, 2) kombinovanou extrakcí podkritickou vodou a superkritickým CO2.
Permanent Link: http://hdl.handle.net/11104/0151997