Development and characterization of ion-imprinted sol–gel-derived fluorescent film for selective recognition of mercury(II) ion

摘要: In this work, an ion-imprinted fluorescent sensor by combining sol–gel processing and spin coating was developed. Fluorescent functional silane first synthesized reacted with tetramethoxysilane to obtain sol–gel-derived materials then used as a receptor for selective removal sensing of Hg2+ in aqueous solution. Ion-imprinted material the presence characterized Fourier transform infrared spectroscopy, scanning electron microscopy, N2 adsorption–desorption analysis thermogravimetric comparing non-imprinted obtained absence Hg2+. Surface area, pore volume diameter were analyzed from profile nitrogen adsorption. It observed that film exhibits distinctive change fluorescence emission upon interaction Steady-state experiments performed spectral characterization films, advancement reaction defined. The shift maxima other changes different matrices have been identified, gelation time network revealed monitoring pre-gel corresponding selectivity factors imprinted toward against analogs evaluated.