The blank and three C N codoped titanias were sono-fabricated without or by organic additives: urea,ethylene diamine, and guanidine hydro chloride, denoted as b-TiO2, U-TiO2, E-TiO2and G-TiO2, respec-tively. The as-prepared photocatalysts were characterized by scanning electron microscopy (SEM),transmission electron microscopy (TEM), photoluminescence (PL), thermal gravimetric analysis (TGA),X-ray powder diffraction (XRD), X-ray photoelectron spectroscopy (XPS),UV–vis diffuse reflectance spec-troscopy (DRS), Fourier transform infrared spectroscopy (FT-IR), Brunauer–Emmett–Teller (BET) andRaman spectroscopy. The b-TiO2has a bicrystalline framework (anatase/brookite) and codoped tita-nias showed an anatase crystalline phase. The interesting photocatalytic activity of C N codoped Titaniawas shown through photosensitizer free deprotection of aldoximes and ketoximes into the correspond-ing carbonyl compounds under green and blue LED as visible-light source using C N codoped TiO2. Theexcellent five times reusability of the photocatalyst was observed.
کلید واژگان :DeoximationPhotocatalysisNano TiO2MesoporousLED
ارزش ریالی : 600000 ریال
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