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Preparation of Diamine-modified Ordered Mesoporous SBA-15 and Its Adsorption Property to Pb~(2+)

机译:二胺改性有序介孔SBA-15的制备及其吸附性能至Pb〜(2+)

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With the method Hydrothermal-photosynthesis, respectively prepare mesoporous silica adsorbent with different content of diamine-modified, 5%2N-SBA-15, 10%2N-SBA-15, 15%2N-SBA-15, 20%2N-SBA-15. All mesoporous materials were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), N_2 adsorption-desorption and scanning electron microscopy (SEM). Discuss on how the system factors such as pH value, adsorption time and adsorption temperature affect on the adsorptive property of Pb~(2+) in the water. The result is that, the optimal adsorption time, adsorption temperature, and pH value, is 60min, 40°C, and 5, wich means material shows the best performance of Pb~(2+) adsorption under such condition. The optimal range of content diamine photosynthesised on SBA-15 is 10%~15%.
机译:通过方法水热光合作用,分别用不同含量的二胺改性的含量制备介孔二氧化硅吸附剂,5%2N-SBA-15,10%2N-SBA-15,15%2N-SBA-15,20%2N-SBA- 15.所有介孔材料的特征在于X射线衍射(XRD),傅里叶变换红外光谱(FT-IR),N_2吸附 - 解吸和扫描电子显微镜(SEM)。讨论如何对水中PH值,吸附时间和吸附温度影响PB〜(2+)在水中的吸附性质的影响。结果是,最佳吸附时间,吸附温度和pH值,为60min,40℃和5,WICH为材料显示出在这种情况下PB〜(2+)吸附的最佳性能。 SBA-15上光合的最佳含量胺的最佳含量范围为10%〜15%。

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