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Optical studies of polyvinylpyrrolidone reduction effect on free and complex metal ions

  • Caixia Kan (a1), Weiping Cai (a1), Cuncheng Li (a1) and Lide Zhang (a1)


Polyvinylpyrrolidone (PVP) reduction effect on free and complex Ag+ and Au3+ ions was studied from optical measurements by adding a metal precursor (K-30), commonly used as a stabilizer, to PVP. It was found that PVP has a strong reduction effect on free ionic metal, such as Ag+ ion in AgNO3, but much weaker on complex ionic metals, AuCl4 in HAuCl4 and Ag(NH3)2+ in Ag(NH3)2OH. This is explained based on the coordinative field of polar group in PVP molecules.


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1.Faraday, M.: Experimental relations of gold (and other metals) to light. Philos. Trans. R. Soc. London 147, 145 (1857).
2.Giersig, M. and Mulvaney, P.: Preparation of ordered colloid monolayers by electrophoretic deposition. Langmuir 9, 3408 (1993).
3.Brust, M., Walker, M., Bethell, D., Schiffrin, D.J. and Whyman, R.: Synthesis of thiol derivatised gold nanoparticles in a two phase liquid/liquid system. J. Chem. Soc. 801 (1994).
4.Pileni, M.P.: Nanocrystal self-assemblies: fabrication and collective properties. J. Phys. Chem. B 105, 3358 (2001).
5.Hao, E. and Lian, T.: Buildup of polymer/Au nanoparticles multilayer thin films based on hydrogen bonding. Chem. Mater. 12, 3392 (2000).
6.Liu, F.K., Hsieh, S.Y., Chu, T.C. and Dai, B.T.: Synthesis of nanometer-sized poly (methyl methacrylate) polymer network by gold nanoparticle template. Jpn. J. Appl. Phys. 42, 4147 (2003).
7.Toshima, N.: Metals—reactions in homogenous solutions, in Fine Particles—Synthesis, Characterization, and Mechanisms of Growth, edited by Sugimoto, T. (Institute for Advanced Materials Proc., Marcel Dekker, New York, 2000), p. 439.
8.Sun, Y.G., Gates, B., Mayers, B. and Xia, Y.N.: Crystalline Silver nanowires by soft solution processing. Nano Lett. 2, 165 (2002).
9.Silvert, P.Y., Urbina, R.H. and Elhsissen, K.T.: Preparation of colloidal silver dispersions by the polyol process. Part 2: Mechanism of particles formation. J. Mater. Chem. 7, 293 (1997).
10.Duff, D.G., Baiker, A. and Edwards, P.: New hydrosol of gold clusters. 1. Formation and particle size variation. Langmuir 9, 2301 (1993).
11.Santos, I.P. and Marzán, L.M.: Formation of PVP-protected metal nanoparticles in DMF. Langmuir 18, 2888 (2002).
12.Sun, Y.G., Mayers, B., Herricks, T. and Xia, Y.N.: Polyol synthesis of uniform silver nanowires: A plausible growth mechanism and the supporting evidence. Nano Lett. 3, 955 (2002).
13.Carotenuto, G., DeNicola, S. and Nicolais, L.: Spectroscopic study of the growth mechanism of silver microclusters. J. Nanopart. Res. 3, 469 (2001).
14.Han, M.Y., Quek, C.H., Huang, W., Chew, C.H. and Gan, L.M.: A simple and effective chemical route for the preparation of uniform nonaqueous Au colloids. Chem. Mater. 11, 1144 (1999).
15.Krebig, U. and Vollmer, M.: Theoretical considerations—single clusters: Intrinsic size effects of the optical properties, in Optical Properties of Metal Clusters, edited by Gonser, U., Osgood, R.M. Jr.Panish, M.B., and Sakaki, H. (Springer-Verlag, Berlin and Heidelberg, Germany, 1995), p. 83.
16.Bohren, C.F. and Huffman, D.R.: Surface modes in small particles, in Absorption and Scattering of Light by Small Particles, edited by Bohren, C.F. and Huffman, D.R. (J. Wiley & Sons Inc., New York, 1983), p. 373.
17.Esumi, K., Hara, J., Aihara, N., Usui, K. and Torigoe, K.: Preparation of aniosotropic gold particles using a Gemini surfactant. J. Colloid Interface Sci. 208, 578 (1998).
18.Zhou, G.D. and Duan, L.Y.: Structure and properties of coordination composites, in Structural Chemistry, edited by Zhou, G.D. and Duan, L.Y. (Beijing University Press, Beijing, China, 1995), p. 288.
19.Zhang, Z.T., Zhao, B. and Hu, L.M.: PVP protective mechanism of ultrafine silver powder synthesized by chemical reduction processes. J. Solid State Chem. 121, 105 (1996).
20.Gratzel, M. and Frank, A.J.: Interfacial electron-transfer reactions in colloidal semiconductor dispersions. Kinetic analysis. J. Phys. Chem. 86, 2964 (1982).


Optical studies of polyvinylpyrrolidone reduction effect on free and complex metal ions

  • Caixia Kan (a1), Weiping Cai (a1), Cuncheng Li (a1) and Lide Zhang (a1)


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