Preparation of zinc oxide/silica nanocomposite particles via consecutive sol–gel and flame-assisted spray-drying methods
作者： W. Widiyastuti , Iva Maula , Tantular Nurtono , Fadlilatul Taufany , Siti Machmudah
DOI: 10.1016/J.CEJ.2014.05.104
关键词:
摘要: Abstract ZnO/SiO 2 nanocomposites were prepared using consecutive sol–gel and flame-assisted spray-drying methods. Zinc oxide silica sols individually from zinc acetate water glass, respectively, via a method. Subsequently, sol, mixture of both spray dried in flame reactor to generate powder pure oxide, silica, nanocomposite, order compare the characteristics. The generated particles characterized luminescence spectrophotometer, Fourier Transform Infrared (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM) obtain photoluminescence spectra, chemical bonding, crystallinity, morphology particles, respectively. emission recorded at 250 nm excitation showed peak approximately 400 nm that was by violet band. highest intensity shown 75 mol% ZnO sample followed, order, 50 mol% ZnO, 25 mol% ZnO.
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