Optical properties of hierarchical-nanostructured TiO2 and its time-dependent photo-degradation of gaseous acetaldehyde
作者： Kyun Ahn , Min-Sun Kim , Soon-Hyun Kim , Jae Hyun Kim , Se-Young Jeong
DOI: 10.1063/1.4857936
关键词:
摘要: The TiO2 hierarchical nanostructures (HNs) composed of rutile nanowires on anatase nanofibers had higher photocatalytic activities 62% and 48% than the commercial nanoparticles (∼21 nm diameter) in continuous flow mode closed-circulation mode, respectively, leading to an efficient degradation gaseous acetaldehyde under UV-light irradiation. This behavior may be attributed effective HNs with specific surface area 85.1 m2/g lower radiative recombination self-trapped excitons, enabling electron-hole separation.
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