title: Photocatalytic activity of Fe-doped CaTiO₃ under UV-visible light.
abstract: The photocatalytic degradation of methylene blue (MB) over Fe-doped CaTiO₃ under UV-visible light was investigated. The as-prepared samples were characterized using X-ray diffraction (XRD), scanning electron microscope (SEM) equipped with an energy dispersive spectrometer (EDS) system, Fourier transform infrared spectra (FT-IR), and UV-visible diffuse reflectance spectroscopy (DRS). The results show that the doping with Fe significantly promoted the light absorption ability of CaTiO₃ in the visible light region. The Fe-doped CaTiO₃ exhibited higher photocatalytic activity than CaTiO₃ for the degradation of MB. However, the photocatalytic activity of the Fe-doped CaTiO₃ was greatly influenced by the calcination temperature during the preparation process. The Fe-doped CaTiO₃ prepared at 500°C exhibited the best photocatalytic activity, with degradation of almost 100% MB (10ppm) under UV-visible light for 180 min.
authors: School of Materials and Metallurgy, Northeastern University, Shenyang 110819, China. Electronic address: yangh@smm.neu.edu.cn.
authors: He
authors: H
authors: Yang
authors: School of Materials and Metallurgy, Northeastern University, Shenyang 110819, China. Electronic address: hanch@smm.neu.edu.cn.
authors: Chong
authors: C
authors: Han
authors: School of Materials and Metallurgy, Northeastern University, Shenyang 110819, China.
authors: Xiangxin
authors: X
authors: Xue
mesh_terms: D002118:Calcium / Q000737:chemistry*; D002384:Catalysis; D018360:Crystallography, X-Ray; D007501:Iron / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D055668:Photochemical Processes; D013052:Spectrometry, X-Ray Emission; D017550:Spectroscopy, Fourier Transform Infrared; D014025:Titanium / Q000737:chemistry*; D014466:Ultraviolet Rays
chemical_list: C000592180:calcium titanate; D014025:Titanium; D007501:Iron; D002118:Calcium
keywords: Fe-doped CaTiO(3); Methylene blue; Photocatalytic activity; UV–visible light