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Published on: February 1, 2020
Probing the surface adsorption and photocatalytic degradation of catechols on TiO2 by solid-state NMR spectroscopy
Takashi Tachikawa1, Yoshio Takai, Sachiko Tojo
1Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan.
Abstract:
The local structure of the TiO2 surface modified with electron-donating bidentate ligands, such as catechols, has been investigated by solid-state NMR spectroscopy. The adsorption and degradation processes of catechols at the TiO2 surface were observed. The photocatalytic degradation mechanism of catechols at the TiO2 surface was interpreted in terms of the interfacial charge recombination reaction with conduction band electrons.

