Article ID Journal Published Year Pages File Type
1333798 Journal of Solid State Chemistry 2007 5 Pages PDF
Abstract

An excellent visible-light-responsive (from 400 to 550 nm) TiO2−xNx photocatalyst was prepared by a simple wet method. Hydrazine was used as a new nitrogen resource in this paper. Self-made amorphous titanium dioxide precursor powders were dipped into hydrazine hydrate, and calcined at low temperature (110 °C) in the air. The TiO2−xNx was successfully synthesized, following by spontaneous combustion. The photocatalyst was characterized by X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET), transmission electron microscope (TEM), UV–Vis diffuse reflectance spectrometer (DRS), and X-ray photoelectron spectroscopy (XPS). Analysis of XPS indicated that N atoms were incorporated into the lattice of the titania crystal during the combustion of hydrazine on the surface of TiO2. Ethylene was selected as a target pollutant under visible-light excitation to evaluate the activity of this photocatalyst. The newly prepared TiO2−xNx photocatalyst with strong photocatalytic activity and high photochemical stability under visible-light irradiation was firstly demonstrated in the experiment.

Graphical abstractThe excellent visible-light-responsive (from 400 to 550 nm) TiO2−xNx photocatalyst was prepared by a simple wet method. Hydrazine was used as a new nitrogen resource in this paper. In the experiment, a strong photocatalytic activity with high photochemical stability under visible-light irradiation was demonstrated.Figure optionsDownload full-size imageDownload as PowerPoint slide

Related Topics
Physical Sciences and Engineering Chemistry Inorganic Chemistry
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