Experimental and modelling studies on the photocatalytic generation of H2 during water-splitting over commercial TiO2 photocatalyst P25
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27710%2F22%3A10251131" target="_blank" >RIV/61989100:27710/22:10251131 - isvavai.cz</a>
Result on the web
<a href="https://www.icct.cz/en/Amca-ICCT/media/content/2022/proceedings/ICCT2022-Proceedings.pdf" target="_blank" >https://www.icct.cz/en/Amca-ICCT/media/content/2022/proceedings/ICCT2022-Proceedings.pdf</a>
DOI - Digital Object Identifier
—
Alternative languages
Result language
angličtina
Original language name
Experimental and modelling studies on the photocatalytic generation of H2 during water-splitting over commercial TiO2 photocatalyst P25
Original language description
Poster na konferenci International Conference on Chemical Technology (ICCT), 25.-27.4.2022, Mikulov, Czech republic.Reaching the maximum yield of H2 generation requires loading the optimal concentration of a photocatalyst with a sufficiently large active surface and providing uniformly distributed intensive irradiation. The mass transfer limitations occurred at the beginning of the reaction, which manifested itself as a delay in H2 transfer from TiO2 suspension to the gas phase. The comparison of experimental and theoretical efficiencies showed a reasonable agreement. The theoretical average reaction rate reached a maximum for a photocatalyst concentration of 0.23 g/L, very close to the one observed experimentally (0.25 g/L). Interestingly, the photonic efficiency remains constant beyond this optimal catalyst concentration. The results of this investigation deepen the understanding of mass transfer limitations in the photocatalytic production of gases and their effect on the overall performance of photoreactors.
Czech name
—
Czech description
—
Classification
Type
O - Miscellaneous
CEP classification
—
OECD FORD branch
10403 - Physical chemistry
Result continuities
Project
<a href="/en/project/EF16_019%2F0000853" target="_blank" >EF16_019/0000853: Institute of Environmental Technology - Excellent Research</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů