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Rongjun Qu,Xilu Ma,Minghua Wang,Changmei Sun,Xiaomei Sun,Shaoying Sun,Ying Zhang,Ping Yin 한국공업화학회 2014 Journal of Industrial and Engineering Chemistry Vol.20 No.6
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 byscanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR), thermal analysis,pore and surface area analysis, X-ray diffraction analysis (XRD) and elemental analysis. The adsorptionproperties of the three products for Au3+ were studied by batch methods. The adsorbents prepared viathe 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.