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首页> 外文期刊>Journal of industrial and engineering chemistry >Homogeneous preparation of polyamidoamine grafted silica gels and their adsorption properties as Au~(3+) adsorbents
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Homogeneous preparation of polyamidoamine grafted silica gels and their adsorption properties as Au~(3+) adsorbents

机译：聚酰胺胺接枝硅胶的均相制备及其作为Au〜（3+）吸附剂的吸附性能

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摘要

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 Au~(3+) 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.
机译：通过均相路线合成了一系列低代树状聚酰胺胺接枝硅胶（命名为SiO2-G1.0，SiO2-G2.0，SiO2-G3.0）。通过扫描电子显微镜（SEM），傅立叶变换红外光谱（FTIR），热分析，孔和表面积分析，X射线衍射分析（XRD）和元素分析对新材料进行了表征。分批研究了三种产物对Au〜（3+）的吸附性能。通过均相途径制备的吸附剂显示出比通过非均相途径更高的吸附能力。三者的最大吸附量分别可达1.48、2.45和2.21 mmol g〜（-1）。

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