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Metal ion and N co-doped TiO2 as a visible-light photocatalyst

Published online by Cambridge University Press:  03 March 2011

Yoshiaki Sakatani ,
Hiroyuki Ando ,
Kensen Okusako ,
Hironobu Koike ,
Jun Nunoshige ,
Tsuyoshi Takata ,
Junko N. Kondo ,
Michikazu Hara  and
Kazunari Domen
Yoshiaki Sakatani
Affiliation:
Basic Chemicals Research Laboratory, Sumitomo Chemical Co., Ltd., 5-1 Sobiraki-cho,Niihama 792-8521, Japan
Hiroyuki Ando
Affiliation:
Basic Chemicals Research Laboratory, Sumitomo Chemical Co., Ltd., 5-1 Sobiraki-cho,Niihama 792-8521, Japan
Kensen Okusako
Affiliation:
Basic Chemicals Research Laboratory, Sumitomo Chemical Co., Ltd., 5-1 Sobiraki-cho,Niihama 792-8521, Japan
Hironobu Koike
Affiliation:
Basic Chemicals Research Laboratory, Sumitomo Chemical Co., Ltd., 5-1 Sobiraki-cho,Niihama 792-8521, Japan
Jun Nunoshige
Affiliation:
Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
Tsuyoshi Takata
Affiliation:
Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
Junko N. Kondo
Affiliation:
Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
Michikazu Hara
Affiliation:
Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
Kazunari Domen
Affiliation:
Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
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Abstract

Powders of TiO2 doped with a metal ion and N species were prepared by a polymerized complex method and the visible-light photocatalytic activities of the products are investigated. Of the metal ions studied (K+, Ca2+, Sr2+, Ba2+, Nb5+, Fe3+, Zn2+, and Al3+), the photocatalyst prepared with Sr2+ exhibits the highest activity for acetaldehyde decomposition under visible-light irradiation. Results obtained from x-ray photoelectron spectroscopy (XPS) and electron spin resonance (ESR) analyses suggest that the doped N species reside at interstitial lattice positions in the catalyst. It was also found by XPS and ESR measurements that the doped N species combine with lattice oxygen to give rise to a paramagnetic property. The visible-light response of the catalyst is driven by the formation of paramagnetic N species at interstitial positions in the TiO2 lattice.

Keywords

AdditivesCatalyticCermet
Type
Articles
Information
Journal of Materials Research , Volume 19 , Issue 7 , July 2004 , pp. 2100 - 2108
Copyright
Copyright © Materials Research Society 2004

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References

REFERENCES

1.Fox, M.A. and Dulay, M.T.: Heterogeneous photocatalysis. Chem. Rev. 93, 341 (1993).CrossRefGoogle Scholar
2.Herrmann, J-M., Disdier, J. and Pichat, P.: Effect of chromium doping on the electrical and catalytic properties of powder titania under UV and visible illumination. Chem. Phys. Lett. 108, 618 (1984).CrossRefGoogle Scholar
3.Anpo, M., Ichihashi, Y., Tamada, Y., Yamashita, H., Yoshinari, T. and Suzuki, Y.: The utilization of visible light by titanium dioxide photocatalysts modified by a metal ion implantation method. Proc. Electrochem. Soc. 97-20, 331 (1997).Google Scholar
4.Anpo, M., Ichihashi., Y., Takeuchi, M. and Yamashita, H.: Design of unique titanium oxide photocatalysts by an advanced metal ion-implantation method and photocatalytic reactions under visible light irradiation. Res. Chem. Intermed. 24, 143 (1998).Google Scholar
5.Anpo, M.: Applications of TiO2 photocatalysts to better our environment: approaches in achieving highly efficient reactions and realizing the use of visible light. BHR Group Conf. Ser. Publ. 30, 75 (1998).Google Scholar
6.Sato, S.: Photocatalytic activity of nitrogen oxide (NOx)-doped titanium dioxide in the visible light region. Chem. Phys. Lett. 123, 126 (1986).CrossRefGoogle Scholar
7.Asahi, R., Morikawa, T., Ohwaki, T. and Taga, Y.: Visible-light photocatalysis in nitrogen-doped titanium oxides. Science 293, 269 (2001).CrossRefGoogle ScholarPubMed
8.Irie, H., Watanabe, Y. and Hashimoto, K.: Nitrogen-Concentration Dependence on Photocatalytic Activity of TiO2-xNx Powders. J. Phys. Chem. B 107, 5483 (2003).Google Scholar
9.Kakihana, M.: “Sol-gel” preparation of high temperature superconducting oxides. J. Sol-Gel Sci. 5, 7 (1996).CrossRefGoogle Scholar
10.Torimoto, T., III, R.J. Fox and Fox, M.A.: Photoelectrochemical doping of TiO2 particles and the effect of charge carrier density on the photocatalytic activity of microporous semiconductor electrode films. J. Electochem. Soc. 143, 3712 (1996).Google Scholar
11.Sopyan, I., Watanabe, M., Murasawa, S., Hashimoto, K. and Fujishima, A.: A film-type photocatalyst incorporating highly active TiO2 powder and fluororesin binder: photocatalytic activity and long-term stability. J. Electroanal. Chem. 415, 183 (1996).CrossRefGoogle Scholar
12.Park, D-R., Zhang, J., Ikeue, K., Yamashita, H. and Anpo, M.: Photocatalytic oxidation of ethylene to CO2 and H2O on ultrafine powdered TiO2 photocatalysts in the presence of O2 and H2O. J. Catal. 185, 114 (1999).CrossRefGoogle Scholar
13.Iyengar, R.D. and Kellerman, R.: ESR studied on the role of ammonia in promoting radical species in precipitated titanium dioxide, J. Colloid Interface Sci. 35, 424 (1971).CrossRefGoogle Scholar
14.Che, M. and Naccache, C.: Nature of paramagnetic species produced by oxygen treatment of titanium dioxide. Chem. Phys. Lett. 8, 45 (1971).Google Scholar
15.Ikeda, S., Hara, M., Kondo, J.N., Domen, K., Takahashi, H., Okubo, T. and Kakihana, M.: Preparation of K2La2Ti3O10 by Polymerized Complex Method and Photocatalytic Decomposition of Water. Chem. Mater. 10, 72 (1998).CrossRefGoogle Scholar
16.Wagner, C.D., Riggs, W.M., Davis, L.E. and Moulder, J.F.: Handbook of X-ray Photoelectron Spectroscopy (A Reference Book of Standard Spectra for Identification and Interpretation of XRD Data) Minnesota, 1978 (Perkin-Elmer Corporation, edited by G.E. Muilenberg).Google Scholar
17.Lazarus, M.S. and Sham, T.K.: X-ray photoelectron spectroscopy (XPS) studies of hydrogen-reduced rutile (TiO2-x) surfaces. Chem. Phys. Lett. 92, 670 (1982).Google Scholar
18.Anpo, M., Aikawa, N., Kubokawa, Y., Che, M., Louis, C. and Giamello, E.: Photoformation and structure of oxygen anion radicals (O2-) and nitrogen-containing anion radicals adsorbed on highly dispersed titanium oxide anchored onto porous Vycor glass. J. Phys. Chem. 89, 5689 (1985).CrossRefGoogle Scholar