title: Preparation, characterization and activity evaluation of TiN/F-TiO2 photocatalyst.
abstract: In this paper, F-TiO(2) and TiN/F-TiO(2) nanoparticle photocatalysts were prepared by ball milling. The photocatalysts were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), terephthalic acid photoluminescence probing technique (TA-PL), X-ray photoelectron spectroscopy (XPS), and UV-vis diffuse reflection spectroscopy (DRS). The photocatalytic activity of the photocatalysts was evaluated by photocatalytic degradation of methylene blue (MB) and rhodamine B (RhB). The results showed that the photocatalytic activity of the F-TiO(2) was much higher than that of TiO(2), and the photocatalytic activity of the TiN/F-TiO(2) was much higher than that of TiO(2) and F-TiO(2) under UV light irradiation. The optimum percentage of doped TiN is 0.2 wt.%. Compared with pure TiO(2), the photoabsorption wavelength range of the TiN/F-TiO(2) and F-TiO(2) photocatalysts red shifts and improves the utilization of the total spectrum. The effect of ball milling time on the photocatalytic activity of the photocatalysts was also investigated. The optimum ball milling time is 12 h. The mechanisms of influence on the photocatalytic activity of the photocatalysts were also discussed.
authors.affiliation: Department of Chemistry, Huaibei Normal University, Anhui, Huaibei, 235000, People's Republic of China. chshifu@chnu.edu.cn
authors.forename: Chen
authors.initials: C
authors.lastname: Shifu
authors.forename: Yang
authors.initials: Y
authors.lastname: Yunguang
authors.forename: Liu
authors.initials: L
authors.lastname: Wei
mesh_terms: D000465:Algorithms; D002384:Catalysis; D004396:Coloring Agents; D003460:Crystallization; D005456:Fluorescent Dyes / Q000737:chemistry; D017665:Hydroxyl Radical / Q000032:analysis; D007501:Iron / Q000737:chemistry*; D049449:Luminescence; D008751:Methylene Blue / Q000737:chemistry; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D010777:Photochemistry; D056951:Photoelectron Spectroscopy; D012235:Rhodamines / Q000737:chemistry; D013050:Spectrometry, Fluorescence; D013056:Spectrophotometry, Ultraviolet; D014025:Titanium / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: D004396:Coloring Agents; D005456:Fluorescent Dyes; D012235:Rhodamines; C009495:titanium dioxide; D017665:Hydroxyl Radical; C041500:titanium nitride; D014025:Titanium; D007501:Iron; C029773:rhodamine B; D008751:Methylene Blue