The effect of Zr loading in Zr/TiO 2 prepared by pressurized hot water on its surface, morphological and photocatalytic properties

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27710%2F19%3A10242020" target="_blank" >RIV/61989100:27710/19:10242020 - isvavai.cz</a>
Alternative codes found
RIV/44555601:13440/19:43894637 RIV/00216275:25310/19:39914315
Result on the web
<a href="https://link.springer.com/article/10.1007%2Fs10971-019-04956-x" target="_blank" >https://link.springer.com/article/10.1007%2Fs10971-019-04956-x</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10971-019-04956-x" target="_blank" >10.1007/s10971-019-04956-x</a>

Result language
angličtina
Original language name
The effect of Zr loading in Zr/TiO 2 prepared by pressurized hot water on its surface, morphological and photocatalytic properties
Original language description
Zr/TiO2 anatase photocatalysts with 0.5, 1, 2, 5 and 7.5 mol.% Zr were prepared using pressurized hot water crystallization and their photocatalytic activity was explored in acid orange 7 photodegradation. Parent TiO2 was also prepared and tested. From all tested photocatalysts, 2 mol.% Zr/TiO2 showed the highest photoactivity, and 7.5 mol.% Zr/TiO2 showed the lowest photoactivity. The poor photoactivity of 7.5 mol.% Zr/TiO2 can be explained by the amorphous ZrO2 present in the surface layer (~1-3 μm depth) of TiO2 anatase nanocrystallite agregates which changed the aggregate morphology and shielded the anatase nanocrystallite surface. The type and amount of defects (e.g., oxygen vacancies, lattice defects) did not effect the photoactivity of Zr/TiO2 in AO7 photodegradation. The addition of Zr to TiO2 significantly affects the photocatalyst morphology and the location where amorphous ZrO2 forms. The optimal Zr loading in TiO2 was determined to be 2 mol.%.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10403 - Physical chemistry

Project
Result was created during the realization of more than one project. More information in the Projects tab.
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

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