Synthesis of Sol-Gel Silicas functionalized with Schiff Base Ligands
Keywords:
Schiff base functionalized silicas, Sol-gel method, Extraction of metal ionsAbstract
Schiff bases containing azomethine linkage in their structure are good ligands and show great metal binding ability. In last few years sol-gel method is found very attractive for synthesis of gels due to its low cost, low operating temperature and ease of synthesis. This work presents the synthesis of Schiff base functionalized gels through sol-gel method and their use in extraction of metal ions from aqueous medium at room temperature and appropriate pH. Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and X-ray diffraction (XRD) analyses of both blank and functionalized gels are presented. The analyses data show successful incorporation of the Schiff base in sol-gel matrix. Metal removal data show high efficiency of Schiff base functionalized gels.
References
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