화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.20, No.6, 4382-4392, November, 2014
DOI10.1016/j.jiec.2014.02.005  Export Citation
Homogeneous preparation of polyamidoamine grafted silica gels and their adsorption properties as Au3+ adsorbents
Rongjun Qu†, Xilu Ma, Minghua Wang, Changmei Sun†, Xiaomei Sun, Shaoying Sun, Ying Zhang, and Ping Yin
  • School of Chemistry and Materials Science, Ludong University, Shandong 264025, China
E-mail:,
A series of low generation dendrimer polyamidoamine grafted silica gels (named SiO2-G1.0, SiO2-G2.0, SiO2-G3.0) were synthesized via the homogeneous route. The new materials were characterized by scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR), thermal analysis, pore and surface area analysis, X-ray diffraction analysis (XRD) and elemental analysis. The adsorption properties of the three products for Au3+ were studied by batch methods. The adsorbents prepared via the homogeneous route showed higher adsorption capacities than those via the heterogeneous route. The maximum adsorption capacities for the three could reach up to 1.48, 2.45, and 2.21 mmol g-1, respectively.
Keywords:Polyamidoamine;Functionalized silica gel;Synthesis;Adsorption;Au3+
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