Paper Title:
Visible-Light Photocatalytic Property of Titanate Nanotubes Sensitized by Several Porphyrins
  Abstract

The visible-light photocatalytic activity of titanate nanotubes (TiNTs) sensitized by 5,10,15,20-tetraphenylporphyrin (TPP), 5,10,15,20-tetraphenylporphyrin manganese (MnTPP), 5,10,15,20-tetraphenylporphyrin nickel (NiTPP) and 5,10,15,20-tetraphenylporphyrin zinc (ZnTPP), respectively, was investigated by the photocatalytic degradation of methyl orange (MO) as a probe reaction. The results showed that the central ions of porphyrins had an important influence on the photocatalytic activity of the samples. The activity was in the order of TiNTs-ZnTPP > TiNTs-TPP > TiNTs-NiTPP > TiNTs-MnTPP. Combined the result of absorption spectra with that of fluorescence spectra, it was demonstrated that various visible-light absorption and photoelectron transfer caused by the central ions of porphyrins were the decisive factor for the visible-light photocatalytic activity of the sensitized TiNTs.

  Info
Periodical
Advanced Materials Research (Volumes 239-242)
Edited by
Zhong Cao, Xueqiang Cao, Lixian Sun, Yinghe He
Pages
2403-2406
DOI
10.4028/www.scientific.net/AMR.239-242.2403
Citation
X. Q. Li, L. F. Liu, S. Z. Kang, J. Mu, G. D. Li, "Visible-Light Photocatalytic Property of Titanate Nanotubes Sensitized by Several Porphyrins", Advanced Materials Research, Vols. 239-242, pp. 2403-2406, 2011
Online since
May 2011
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