Metal oxide photocatalysts
Ewelina Grabowska , Martyna Marchelek , Marta Paszkiewicz-Gawron , Adriana Zaleska-Medynska
AbstractEfficient and stable photocatalysts must satisfy some critical requirements: (1) the semiconductor must have a bandgap large enough to provide energetic electrons, but small enough to allow for efficient absorption overlap with the solar spectrum (1.23 eV ≤ Eg ≤ 3.0 eV, typically Eg > 2.0 eV); (2) there must be a mechanism to efficiently drive the charge separation and transportation processes. From this viewpoint, it is important to obtain photocatalysts with high photoefficiency. This chapter describes the synthetic methods of unitary metal oxide semiconductors (TiO2, WO3, ZnO, Fe3O3, Ta2O5, and CuO), heterojunction photocatalysts, and composite-based materials. Their structure, surface properties, and photocatalytic activity are also discussed.
|Publication size in sheets||11|
|Book||Metal oxide-based photocatalysis : fundamentals and prospects for application, Metal Oxides, 2018, Elsevier, ISBN 978-0-12-811634-0, [978-0-12-811633-3], 364 p.|
|Keywords in English||unitary metal oxides, composite-based photocatalysts, synthesis, surface properties, photocatalytic activity, UV and Vis excitation mechanism|
|Score||= 5.0, 10-05-2018, BookChapterNotSeriesMainLanguages|
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