A SIMPLE METHOD FOR PREPARATION OF FLUORESCENT NANOSTRUCTURE SILICA WITH HEXAGONAL ARRAY

Abstract

A nanostructure modified silica with good fluorescence properties was prepared by grafting Al 3+ ions on the surface of nanoporous silica and then binding of 8-hydroxyquinoline (8- HQ ) to the grafted Al 3+ ions. The prepared material, denoted as NS - AlQ 2, was characterized by scanning electron microscopy (SEM), powder X-ray diffraction (XRD), nitrogen adsorption–desorption measurements, FT-IR and fluorescence spectra. This compound shows emission spectra approximately in the emission range of AlQ 3 complex. This procedure provides a simple method for grafting fluorescent molecules in the channels of nanoporous silica materials.