Preparation of TiO2-SiO2 composite photocatalysts for environmental applications

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F14%3A00434565" target="_blank" >RIV/61388955:_____/14:00434565 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22310/14:43898449
Result on the web
<a href="http://dx.doi.org/10.1002/jctb.4436" target="_blank" >http://dx.doi.org/10.1002/jctb.4436</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/jctb.4436" target="_blank" >10.1002/jctb.4436</a>

Result language
angličtina
Original language name
Preparation of TiO2-SiO2 composite photocatalysts for environmental applications
Original language description
BACKGROUND: The objective of this work is to prepare various TiO2/SiO2 composites, determine their photocatalytic activity and suggest the most promising materials for further application. RESULTS: TiO2/SiO2 composites were successfully prepared as a powder, obtained by the heterocoagulation of mixed TiO2 and SiO2 aqueous colloidal suspensions. The heterocoagulation of prepared amorphous TiO2 in the presence of SiO2 led to the crystallization of TiO2 with anatase structure. Photocatalytic activity was tested in the liquid phase by dye degradation and in the gas phase by hexane degradation. In aqueous phase the presence of SiO2 increased the rate of degradation of Methylene Blue in comparison with pure TiO2 in acidic conditions, whereas Acid Orange 7 photodegradation was faster in basic solution in the presence of TiO2/SiO2 1:1 composite. In gaseous phase, composites prepared by heterocoagulation showed improved photoactivity (conversion around 35%). CONCLUSION: Composites prepared by h
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CF - Physical chemistry and theoretical chemistry
OECD FORD branch
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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