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- W2023401936 abstract "N–I co-doped TiO2 nanoparticles were prepared by hydrolysis method, using ammonia and iodic acid as the doping sources and Ti(OBu)4 as the titanium source. The prepared catalysts were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR) and ultraviolet–visible diffuse reflection spectroscopy (UV–vis DRS). XRD spectra show that N–I–TiO2 samples calcined at 673 K for 3 h are of anatase structure. XPS analysis of N–I–TiO2samples indicates that some N atoms replace O atoms in TiO2 lattice, and I exist in I7+, I− and I5+ chemical states in the samples. UV–vis DRS results reveal that N–I–TiO2 had significant optical absorption in the region of 400–600 nm. The photocatalytic activity of catalysts was evaluated by monitoring the photocatalytic degradation of methyl orange (MO). Compared with P25 and mono-doped TiO2, N–I–TiO2 powder shows higher photocatalytic activity under both visible-light (λ > 420 nm) and UV–vis light irradiation. Furthermore, N–I–TiO2 also displays higher COD removal rate under UV–vis light irradiation." @default.
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- W2023401936 date "2009-10-01" @default.
- W2023401936 modified "2023-09-27" @default.
- W2023401936 title "Preparation and characterization of N–I co-doped nanocrystal anatase TiO2 with enhanced photocatalytic activity under visible-light irradiation" @default.
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- W2023401936 doi "https://doi.org/10.1016/j.matchemphys.2009.06.036" @default.
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