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Synthesis and adsorption properties for Au(III) of alkoxycarbonyl thiourea resin

  • Shuai Wang (王 帅)
  • Hong Zhong (钟 宏)Email author
  • Guang-yi Liu (刘广义)
  • Qian Zhang (张 骞)
  • Ting Li (李 婷)
Article

Abstract

A novel alkoxycarbonyl thiourea resin(ATR) was synthesized by monomer polymerization of oxydiethane-2,1-diyl dicarbonisothiocyanatidate and polyethylene polyamine, and characterized by FT-IR. The adsorption properties of ATR were investigated by batch test. The adsorption capacities for Au(III), Ag(I), Cu(II), Zn(II), Fe(III), Ca(II) and Mg(II) are 4.65, 0.40, 0.90, 0.86, 0.0080 and 0.016 mmol/g, respectively, when the adsorption condition is as follows: contact time 24 h, temperature 30 °C, initial concentration of Au(III) 5.08 mmol/L and that of other metals 0.10 mol/L, and concentration of acid 1.0 mol/L. The adsorption capacity for Au(III) increases with the increase of contact time, temperature and initial concentration of Au(III). The capacity after five adsorption-desorption cycles remains 90% that of the first time, and the separation factors of ATR for binary metal ion solutions are larger than 995, indicating that ATR is of good regeneration property and selectivity. XPS results show that the functional atoms of ATR supply electrons for Au and coordinate with Au during the adsorption.

Key words

alkoxycarbonyl thiourea resin Au(III) separation factor synthesis adsorption 

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Copyright information

© Central South University Press and Springer-Verlag GmbH 2008

Authors and Affiliations

  • Shuai Wang (王 帅)
    • 1
  • Hong Zhong (钟 宏)
    • 1
    Email author
  • Guang-yi Liu (刘广义)
    • 1
  • Qian Zhang (张 骞)
    • 1
  • Ting Li (李 婷)
    • 1
  1. 1.School of Chemistry and Chemical EngineeringCentral South UniversityChangshaChina

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