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Catalysis of redox reactions by Ag@TiO2 and Fe3+-doped Ag@TiO2 core–shell type nanoparticles

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Abstract

Ag nanoparticles encapsulated by TiO2 shells have the ability to catalyze redox reactions on their surface. By continually monitoring by use of UV–visible spectroscopy it was found that the surface charge of both TiO2-coated and uncoated colloidal silver particles changed after chemical electron injection. The charging and discharging process of Ag@TiO2 vary, depending on the different Ag content of the core–shell nanoparticles. In order to enhance the stability of Ag@TiO2 colloids, Fe3+ was doped into the lattice of the TiO2 shells. The experimental results showed that the Fe3+ ions have the capacity to store and transfer electrons. Furthermore, the charging and discharging rate can be controlled by changing the thickness of the TiO2 shells, because they are limited by the diffusion distance of electrons through the TiO2 shells.

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References

  1. U. Kreibig, Optical Properties of Metal Clusters (Springer, Berlin Heidelberg New York, 1995)

    Google Scholar 

  2. G.C. Papavassiliou, Prog. Solid State Chem. 12, 185 (1980)

    Article  Google Scholar 

  3. J.A. Perenboom, P. Wyder, P. Meier, Phys. Rep. 78, 173 (1981)

    Article  CAS  Google Scholar 

  4. A.E. Hughes, S.C. Jain, Adv. Phys. 28, 717 (1979)

    Article  CAS  Google Scholar 

  5. M. Kerker, The Scattering of Light and Other Electromagnetic Radiation (Academic Press, New York, 1969)

    Google Scholar 

  6. C.F. Bohren, Absorption and Scattering of Light by Small Particles (Wiley, New York, 1983)

    Google Scholar 

  7. J.A. Creighton, D.G. Eadon, J. Chem. Soc. Faraday Trans. 87, 3881 (1991)

    Article  CAS  Google Scholar 

  8. P. Mulvaney, Langmuir 12, 788 (1996)

    Article  CAS  Google Scholar 

  9. G. Schmid, Clusters and Colloids: From Theory to Application (VCH, Weinheim, 1994)

    Book  Google Scholar 

  10. K. Foger, in Catalysis Science and Technology, vol. 6, ed. by J.R. Anderson, M. Bouchart (Springer, Berlin Heidelberg New York, 1984), p. 227

  11. J.S. Bradley, in Clusters and Colloids. From Theory to Applications, ed by G. Schmid (VCH, Weinheim, 1994)

  12. J. Kiwi, M. Grätzel, J. Am. Chem. Soc. 101, 7214 (1979)

    Article  CAS  Google Scholar 

  13. T. Hirakawa, P.V. Kamat, J. Am. Chem. Soc. 127, 3928 (2005)

    Article  CAS  Google Scholar 

  14. L. Xiao, J.L. Zhang, Y. Cong, B.Z. Tian, F. Chen, M. Anpo, Catal. Lett. 111, 207 (2006)

    Article  CAS  Google Scholar 

  15. R.T. Tom, A.S. Nair, N. Singh, M. Aslam, C.L. Nagendra, R. Philip, K. Vijayamohanan, T. Pradeep, Langmuir 19, 3439 (2003)

    Article  CAS  Google Scholar 

  16. J.H. Sinfelt, G.H. Via, J. Catal. 56, 1 (1979)

    Article  CAS  Google Scholar 

  17. I. Manninger, Z. Paál, B. Tesche, U. Klengler, J. Halász, I. Kiricsi, J. Mol. Catal. 64, 361 (1991)

    Article  CAS  Google Scholar 

  18. B.J. Tan, K.J. Klabunde, M.A. Sherwood, J. Am. Chem. Soc. 113, 855 (1991)

    Article  CAS  Google Scholar 

  19. T. Ung, L.M. Liz-Marzán, P. Mulvaney, J. Phys. Chem. B 103, 6770 (1999)

    Article  CAS  Google Scholar 

Download references

Acknowledgments

This work was supported by the Shanghai Nanotechnology Promotion Centre (0652nm045, 0752nm001), the National Nature Science Foundation of China (20577009, 20773039), the National Basic Research Program of China (973 Program, 2007CB613306), and the Ministry of Science and Technology of China (2006AA06Z379, 2006DFA52710).

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Authors and Affiliations

  1. Laboratory for Advanced Materials, Institute of Fine Chemicals, East China University of Science and Technology, 130 Meilong Road, 200237, Shanghai, People’s Republic of China

    Wenjiao Wang, Jinlong Zhang & Feng Chen

  2. Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, 599-8531, Sakai, Osaka, Japan

    Masakazu Anpo

  3. Shanghai National Engineering Research Center for Nanotechnology, 245# Jiachuan Road, 200237, Shanghai, People’s Republic of China

    Dannong He

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  1. Wenjiao Wang
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  2. Jinlong Zhang
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  3. Feng Chen
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  4. Masakazu Anpo
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  5. Dannong He
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Correspondence to Jinlong Zhang.

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Wang, W., Zhang, J., Chen, F. et al. Catalysis of redox reactions by Ag@TiO2 and Fe3+-doped Ag@TiO2 core–shell type nanoparticles. Res Chem Intermed 36, 163–172 (2010). https://doi.org/10.1007/s11164-010-0130-9

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  • DOI: https://doi.org/10.1007/s11164-010-0130-9

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