Titania aerogel prepared by low temperature supercritical drying

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388980%3A_____%2F06%3A00040429" target="_blank" >RIV/61388980:_____/06:00040429 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Titania aerogel prepared by low temperature supercritical drying

Original language description

Mesoporous titania aerogel with high surfaces area (1086 m(2) g(-1)) were prepared by two steps: heterogeneous precipitation of aqueous solution containing TiOSO4 and ammonia, followed by continuous supercritical extraction with CO2 after replacement ofthe water with n-propanol/benzene mixture. The total pore volume of as obtained aerogel is 3.44 cm(-3) g(-1) and the main pore diameter is 20-80 nm. The structure evolution of titania aerogel during heating was studied by DTA and high temperature XRD analyses. At 450 degrees C titania aerogel transforms to polycrystalline anatase. The morphology and microstructure characteristics of both titania aerogel and anatase samples were obtained by SEM, HRTEM, BET and BJH methods. Anatase reveals high photocatalytic activity during the degradation of 4-chlorophenol in aqueous suspension.

Czech name

TiO2 aerogel připravený nízkou teplotou sušení

Czech description

TiO2 aerogel připravený nízkou teplotou sušení.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CA - Inorganic chemistry

OECD FORD branch

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Project

<a href="/en/project/1M0577" target="_blank" >1M0577: Research centre for nanostructures engineering</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2006

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Microporous and Mesoporous Materials

ISSN

1387-1811

e-ISSN

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Volume of the periodical

91

Issue of the periodical within the volume

1-3

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

6

Pages from-to

1-6

UT code for WoS article

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EID of the result in the Scopus database

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