Copyright (c) 2014 AJC
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Synthesis and Property Investigation of Fe3O4 Core and Ag, Au Bimetallic Shell Nanocomposites
Corresponding Author(s) : Jinghuai Fang
Asian Journal of Chemistry,
Vol. 26 No. 16 (2014): Vol 26 Issue 16
Abstract
Novel nanocomposite with Fe3O4 core and Ag/Au bimetallic shell were fabricated by galvanic replacement reaction. The Fe3O4 core has good magnetism and Ag/Au shell shows characteristic surface plasmon resonance peaks of Ag and Au, as indicated by UV-visible absorption spectra. Surface-enhanced Raman scattering investigation reveals Fe3O4/Ag, Au presents much stronger surface-enhanced Raman scattering enhancement than Fe3O4/Ag, which is ascribed to the formation of holes during the replacement reaction.
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- M. Ma, H. Chen, Y. Chen, X. Wang, F. Chen, X. Cui and J. Shi, Biomaterials, 33, 989 (2012); doi:10.1016/j.biomaterials.2011.10.017.
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- Z.C. Xu, Y.L. Hou and S.H. Sun, J. Am. Chem. Soc., 129, 8698 (2007); doi:10.1021/ja073057v.
- Y.G. Sun and Y.N. Xia, J. Am. Chem. Soc., 126, 3892 (2004); doi:10.1021/ja039734c.
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References
M. Ma, H. Chen, Y. Chen, X. Wang, F. Chen, X. Cui and J. Shi, Biomaterials, 33, 989 (2012); doi:10.1016/j.biomaterials.2011.10.017.
N. Gan, X.W. Du, Y.T. Cao, T. Hu, T.H. Li and Q. Jiang, Materials, 6, 1255 (2013); doi:10.3390/ma6041255.
M. Shao, F. Ning, J. Zhao, M. Wei, D.G. Evans and X. Duan, J. Am. Chem. Soc., 134, 1071 (2012); doi:10.1021/ja2086323.
J. Wang, Y. Sun, L.Y. Wang, X.N. Zhu, H.Q. Zhang and D.Q. Song, Colloids Surf. B, 81, 600 (2010); doi:10.1016/j.colsurfb.2010.08.007.
Z.C. Xu, Y.L. Hou and S.H. Sun, J. Am. Chem. Soc., 129, 8698 (2007); doi:10.1021/ja073057v.
L.Y. Wang, H.Y. Park, S.I. Lim, M.J. Schadt, D. Mott, J. Luo, X. Wang and C.J. Zhong, J. Mater. Chem., 18, 2629 (2008); doi:10.1039/b719096d.
P.L. Stiles, J.A. Dieringer, N.C. Shah and R.P. Van Duyne, Annu. Rev. Anal. Chem., 1, 601 (2008); doi:10.1146/annurev.anchem.1.031207.112814.
C.N. Wang, J.H. Fang, Y.L. Jin and M.F. Cheng, Appl. Surf. Sci., 258, 1144 (2011); doi:10.1016/j.apsusc.2011.09.052.
Z.C. Xu, Y.L. Hou and S.H. Sun, J. Am. Chem. Soc., 129, 8698 (2007); doi:10.1021/ja073057v.
Y.G. Sun and Y.N. Xia, J. Am. Chem. Soc., 126, 3892 (2004); doi:10.1021/ja039734c.
E. Csapó, A. Oszkó, E. Varga, A. Juhász, N. Buzás, L. Korösi, A. Majzik and I. Dékány, Colloids Surf. A, 415, 281 (2012); doi:10.1016/j.colsurfa.2012.09.005.
Y. Cui, B. Ren, J.L. Yao, R.A. Gu and Z.Q. Tian, J. Phys. Chem. B, 110, 4002 (2006); doi:10.1021/jp056203x.
G.V.P. Kumar, S. Shruthi, B. Vibha, B.A.A. Reddy, T.K. Kundu and C. Narayana, J. Phys. Chem. C, 111, 4388 (2007); doi:10.1021/jp068253n.