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Acta Chimica Sinica ›› 2006, Vol. 64 ›› Issue (22): 2275-2280. Previous Articles     Next Articles

Original Articles

重金属离子敏感型聚合物胶体晶体的研究

戴晔1, 包华*,1, 林嘉平1, FOULGER, S. H.2   

  1. (1华东理工大学材料科学与工程学院 超细材料制备和应用教育部重点实验室 上海 200237)
    (2 School of Materials Science and Engineering, Center for Optical Materials Science and Engineering Technologies,
    Clemson University, Clemson, SC 29634, USA)
  • 投稿日期:2006-04-10 修回日期:2006-06-09 发布日期:2006-11-28
  • 通讯作者: 包华

Study of Polymerized Crystalline Colloidal Array for Stimulation of Heavy Metal Cations

DAI Ye1; BAO Hua*,1; LIN Jia-Ping1; FOULGER S. H.2   

  1. (1 School of Materials Science and Engineering, East China University of Science and Technol-ogy, Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai 200237)
    (2 School of Materials Science and Engineering, Center for Optical Materials Sci-ence and Engineering Technologies, Clemson University, Clemson, SC 29634, USA)
  • Received:2006-04-10 Revised:2006-06-09 Published:2006-11-28
  • Contact: BAO Hua

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The polymerized crystalline colloidal array (PCCA) was made by incorporating polystyrene colloidal crystal and bisacrylamidecystamine into polyacrylamide hydrogel. The PCCA with thiol groups could be achieved by the cleavage of disulfide and can be used to reproducibly detect heavy metal cation concentration based on the association between metal cation and thiol groups. UV-VIS reflectance spectra indicate that the PCCA with thiol groups is sensitive to heavy metal cations and the stop band would shift a maximum of 80 nm in Pb(Ac)2 solution. The PCCA with thiol groups could detect a concentration of different heavy metal cations, such as Pb2＋, Zn2＋.

Key words: crystalline colloidal array, bandgap, hydrogel, heavy metal cation, thiol