Photo(electro)chemical and surface characterization of semiconductor photocatalysts/materials will be discussed by Dr. Hana Krýsová and Dr. Roman Nebel (HIPC) and Dr. Šárka Paušová and Bc. Tomáš Imrich (Department of Inorganic Technology, University of Chemistry and Technology in Prague)
Time: Apr 14, 2021 02:30 PM Amsterdam, Berlin, Rome, Stockholm, Vienna
Photo(electro)chemical and surface characterization of semiconductor photocatalysts/materials
Semiconductor photocatalysts as TiO2 or hematite can find use in environmental or energy applications. TiO2 based materials are able (after irradiation with UV light) to generate on the surface highly reactive radicals capable to remove pollutants from air (NOx, toluene, acetaldehyde), water (dyes, herbicides) or to create a self-cleaning surfaces able to decompose solid organic deposits. Among other semiconductor materials, hematite (α-Fe2O3) can be successfully used as a photoanode for light assisted water electrolysis. It is due to its favourable band gap (2.1 eV) resulting in the theoretical maximum power conversion efficiency of 27 %. Our research is mainly focused on the development of various photocatalyst materials and optimisation of their functional properties through their physical and photoelectrochemical characterization.
Hana Krýsová: Breaf introduction of electrochemical and photoelectrochemical testing of thin layers of semiconducting materials
Roman Nebel: Surface characterization of semiconductive layers by SEM/EDX
Šárka Paušová: Photocatalytic materials for environmental applications
Tomáš Imrich: Hematite photoanodes for light assisted water electrolysis
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