Photoinduced one-electron reduction of MV2+ in titania nanosheets using porphyrin in mesoporous silica thin films

Tatsuto Yui; Takako Tsuchino; Toshio Itoh; Makoto Ogawa; Yoshiaki Fukushima; Katsuhiko Takagi

doi:10.1021/la047385+

Photoinduced one-electron reduction of MV2+ in titania nanosheets using porphyrin in mesoporous silica thin films

Langmuir. 2005 Mar 29;21(7):2644-6. doi: 10.1021/la047385+.

Authors

Tatsuto Yui¹, Takako Tsuchino, Toshio Itoh, Makoto Ogawa, Yoshiaki Fukushima, Katsuhiko Takagi

Affiliation

¹ Department of Crystalline Materials Science, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, 464-8603, Japan.

PMID: 15779926
DOI: 10.1021/la047385+

Abstract

Composite films of a meso-(tetramethylpyridinium)porphyrin (TMPyP) hybrid incorporated in mesoporous silica (MPS) and cast on a methyl viologen (MV2+)/titania nanosheet hybrid were synthesized and a light-induced charge separation between the two could be observed. These composite thin films were able to initiate a one-electron reduction of the MV2+ ions accompanied by the simultaneous decomposition of the TMPyP organic dye within the mesoporous silica channels.