Kompozitní fotokatalyzátory na bázi TiO2 a uhlíkatých materiálů a jejich účinnost odstraňování polutantů z plynné fáze

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F19%3A43918226" target="_blank" >RIV/60461373:22310/19:43918226 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22350/19:43918226
Result on the web
<a href="http://www.pigmentyapojiva.cz/assets/kpp2019_sb-pr_c1_low.pdf" target="_blank" >http://www.pigmentyapojiva.cz/assets/kpp2019_sb-pr_c1_low.pdf</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Kompozitní fotokatalyzátory na bázi TiO2 a uhlíkatých materiálů a jejich účinnost odstraňování polutantů z plynné fáze
Original language description
This work deals with the preparation and characterization of composite photocatalysts containing various carbonaceous materials, active carbon, graphene or carbon nanodots. The motivation is combine either high adsorption capability of active carbon with photocatalytic activity of titanium dioxide or to enhanced electric conductivity of the photocatalysts to improve charge separation and decrease recombination reaction. Photocatalytic activity was expressed as conversion of toluene according to ISO 22197-3 methodology. It was found that the optimal amount of carbon dots is in range 0,05-0,1 %. With increasing content of carbon dots, the photoactive surface of TiO2 is shielded thus the activity decreases. The highest increase of photoactivity was observed for samples containing 0,1% of carbon nano dots after hydrotermal reduction. This sample containing about 40% higher conversion of toluene compared to pure TiO2 layer. According to literature this increase is caused by the formation of Ti-O-C bond allowing the transport of photoexcite electrons from TiO2 to carbon nanodost resulting in better quantum yield of toluene photocatalytic oxidation.
Czech name
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Czech description
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Project
<a href="/en/project/LTACH17007" target="_blank" >LTACH17007: Composite TiO2 - active coke based photocatalyst for water and air purification</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of the XII. Konference on pigments and binders
ISBN
978-80-906269-4-2
ISSN
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e-ISSN
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Number of pages
4
Pages from-to
33-36
Publisher name
CHEMAGAZÍN s.r.o.
Place of publication
Pardubice
Event location
Seč
Event date
Nov 11, 2019
Type of event by nationality
CST - Celostátní akce
UT code for WoS article
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