Moorthy Madhappan Santha, Park Sung Soo, Selvaraj M, Ha Chang-Sik
J Nanosci Nanotechnol. 2014 Nov;14(11):8891-7. doi: 10.1166/jnn.2014.9957.
Hard donor atoms (N and O) containing macrocyclic ligand was synthesized and further functionalized with mesoporous SBA-15 materials by chemical modification method. The modification was achieved by the immobilization of 3-chloropropyltriethoxysilane (CIPTES) onto mesoporous silica surface followed by post grafting route. The resulting material (Py-Cy-SBA-15) has been characterized by low angle X-ray diffraction (XRD), nitrogen adsorption-desorption isotherm, Fourier-transform infrared (FT-IR) spectroscopy, 29Si and 13C CP MAS NMR spectroscopic analyses, Thermogravimetric analysis (TGA) and elemental analysis. The long range orders of the materials were identified by transmission electron microscopy (TEM). The functionalized material was employed to the heavy metal ions adsorption from aqueous solution containing Cu2+, Co2+, Zn2+, Cd2+ and Cr2+. The prepared hybrid material showed high selectivity and adsorption capacity for Co2+ ion at pH 8.0.
合成了含硬供体原子（N和O）的大环配体，并通过化学改性方法用介孔SBA-15材料对其进行进一步功能化。通过将3-氯丙基三乙氧基硅烷（CIPTES）固定在介孔二氧化硅表面，然后采用后接枝路线实现改性。所得材料（Py-Cy-SBA-15）已通过小角X射线衍射（XRD）、氮吸附-脱附等温线、傅里叶变换红外（FT-IR）光谱、29Si和13C CP MAS NMR光谱分析、热重分析（TGA）和元素分析进行了表征。通过透射电子显微镜（TEM）确定了材料的长程有序性。将该功能化材料用于从含有Cu2+、Co2+、Zn2+、Cd2+和Cr2+的水溶液中吸附重金属离子。制备的杂化材料在pH 8.0时对Co2+离子表现出高选择性和吸附容量。
