Photocatalytic activity of Sn-doped ZnO synthesized via peroxide route

0545016 - ÚACH 2023 RIV GB eng J - Journal Article
Slušná, Michaela - Smržová, Darina - Ecorchard, Petra - Tolasz, Jakub - Motlochová, Monika - Jakubec, Ivo - Maříková, Monika - Kormunda, M. - Štengl, Václav
Photocatalytic activity of Sn-doped ZnO synthesized via peroxide route.
Journal of Physics and Chemistry of Solids. Roč. 160, JAN (2022), č. článku 110340. ISSN 0022-3697. E-ISSN 1879-2553
R&D Projects: GA MŠMT(CZ) LM2018124
Institutional support: RVO:61388980
Keywords : Photocatalysis * Tin * Zinc oxide
OECD category: Inorganic and nuclear chemistry
Impact factor: 4, year: 2022
Method of publishing: Limited access
https://doi.org/10.1016/j.jpcs.2021.110340

ZnO*ZnO2 mixture was prepared by thermal hydrolysis of a zinc peroxo-complex precursor in presence of Sn2+ and Sn4+ ions. The effect of different tin valence states on structure and photocatalytic properties of the resulting products was investigated. All samples before annealing contained ZnO2 and except one sample also SnO2. Microstructural analysis showed a difference in morphology between the two sets of samples. A difference was also observed for the specific surface area. The photocatalytic decolorization of Orange II dye was employed to determine the photocatalytic activity of the samples, Sn2+ doped samples were more active than Sn4+ doped ZnO samples. Temperature 600 °C was optimal for annealing the sample ZnP150Sn2 annealed at 600 °C had the highest rate constant (0.0730 min−1) among the samples. Additional increase of Sn2+ amount led to further increase in rate constant (0.0937 min−1 for the sample ZnP200Sn2) up to a certain point.
Permanent Link: http://hdl.handle.net/11104/0323081