Acta Phys. -Chim. Sin. ›› 2006, Vol. 22 ›› Issue (03): 369-372.doi: 10.3866/PKU.WHXB20060323

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Fluorescence Characterization of Tb3+-Polydimethylsiloxane Complex

CAO Zhi-Jian; ZHANG Jun-Song; XU Juan; LU Tian-Hong; LI Cun; HUANG Xiao-Hua   

  1. College of Chemistry and Environmental Science, Nanjing Normal University, Nanjing 210097, P. R. China
  • Received:2005-07-27 Revised:2005-10-24 Published:2006-03-10
  • Contact: HUANG Xiao-Hua E-mail:wxxhhuang@yahoo.com

Abstract: The measurement of the fluorescence, UV-Vis absorption, FTIR and XPS spectroscopy demonstrated that the oxygen atom in polydimethylsioxane (PDMS) can coordinate with Tb3+, forming the complex of Tb3+ and PDMS complex (Tb3+-PDMS). It was found that after Tb3+-PDMS is formed, both the fluorescence emissions of PDMS and Tb3+ in the complex are enhanced comparing with that of Tb3+ and PDMS. The enhancement of the fluorescence intensity of the complex is related to the content of Tb3+ in the complex. When the content of Tb3+ in the complex is 2.0%(w), the fluorescence intensity of the complex is largest. The fluorescence intensity can be enhanced by 1547%.

Key words: Tb3+, Polydimethylsiloxane, Fluorescence spectroscopy