Enhanced photocatalytic degradation of Bisphenol A induced by densely packed nanocavities inside 2D TiO2 nanosheets

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F44555601%3A13420%2F18%3A43893837" target="_blank" >RIV/44555601:13420/18:43893837 - 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
Enhanced photocatalytic degradation of Bisphenol A induced by densely packed nanocavities inside 2D TiO2 nanosheets
Original language description
Here we present for the first time, the advantages offered by the cryo-lyophilisation technique (CLT) for synthesis of aligned 2D TiO2 nanosheets. The rnethod relies on lyophilzation of mixture of TiOSO4 andH2O2,leading to the fomration of arnorphous TiO(O)rOHr. This precursor was annealed at 500, 600, 800 and 950 oC in air and four as-obtained samples (TiO_LYO/500-TiO_LYO/950) were characterized b5' XRD, SEM, HRTEM and SAXS techniques. The photocatalytic activity was measured by degradation of BisphenolA (BPA). XRD revealed that increasing of the temperature causing a transformation of TiO(O)rOH, to nailocrystalline TiOt anatase, SEM and HRTEM documented dense regular polyhedral nanocavitiesinside ultrafine TiO, nanosheets. The SAXS confirmed nanocavities of less than 50 nm stze lraving a main diameter of 2.6 nm. The activity increased with increasing the temperature in ordel TiO-LYO < 500 oC < 600 oC < Degussa P25 < 800. Sample annealed at 950 oC is mixtureof anatase and rutile; it is the second best photocatalyst after TiO_LYO/800. Since the efficiencyof TiO-LYO/S00 is higher than standard P25, we can conclude that CLT could be used as a smalt and nonstandard concept for synthesis ofadvanced photocatalysts.
Czech name
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Czech description
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Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
13th International Conference on SOLID STATE CHEMISTRY
ISBN
978-80-7560-158-2
ISSN
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e-ISSN
neuvedeno
Number of pages
1
Pages from-to
145
Publisher name
Czech Society of Industrial Chemistry
Place of publication
Pardubice
Event location
Pardubice
Event date
Sep 16, 2018
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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