Photodegradation Activity of Poly(ethylene oxide-b--caprolactone)-Templated Mesoporous TiO2 Coated with Au and Pt.

Author(s) Chu, W.C.; Kim, J.; Kim, M.; Alshehri, A.Ali; Alghamidi, Y.Gamaan; Alzahrani, K.Ahmed; Yamauchi, Y.; Malgras, V.; Ku, S.W.
Journal J Nanosci Nanotechnol
Date Published 2020 Aug 01

Mesoporous TiO₂ films are synthesized through evaporation-induced self-assembly using poly(ethylene oxide--caprolactone) diblock copolymers as a soft-template. Using small-angle X-ray scattering and scanning electron microscopy, we investigate the effect of the TiO₂/PEO--PCL ratio on the resulting nanoarchitectonic structure. After sputter-coating Au and Pt layers, these Au/TiO₂ and Pt/TiO₂ nanocomposite films display drastically enhanced photodegradation of rhodamine 6G under ultraviolet irradiation, due to the metal films inhibiting the rapid recombination of photogenerated charge carriers.

DOI 10.1166/jnn.2020.18572
ISSN 1533-4899
Citation J Nanosci Nanotechnol. 2020;20(8):52765281.

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