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Influence of Fe/C codoped on structural, optical, and photocatalytic properties of TiO 2 powders by sol‐gel method
Author(s) -
Gu Peng,
Yang DingYu,
Zhu XingHua
Publication year - 2019
Publication title -
journal of physical organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.325
H-Index - 66
eISSN - 1099-1395
pISSN - 0894-3230
DOI - 10.1002/poc.3890
Subject(s) - photocatalysis , photoluminescence , doping , absorption edge , methyl orange , luminescence , band gap , ultraviolet , aqueous solution , sol gel , materials science , irradiation , chemistry , absorption (acoustics) , nuclear chemistry , analytical chemistry (journal) , chemical engineering , nanotechnology , optoelectronics , catalysis , composite material , organic chemistry , engineering , physics , nuclear physics
In this paper, Fe/C codoped TiO 2 powders are successfully synthesized by the sol‐gel method. The crystalline size and interplanar spacing of doped TiO 2 were smaller than undoped TiO 2 powders. The narrow bandgap of TiO 2 powders were observed by doping and the light absorption edge shift to longer wavelength, especially for Fe/C codoped TiO 2 powders, and extended to 460 nm. Photoluminescence spectra showed similar luminescence band shape except for relative intensity under the excited source of 320 nm and Fe/C codoped TiO 2 powders exhibited the weakest luminous intensity. Compared with undoped powders, doped TiO 2 could significantly improve the photocatalytic degradation in methyl orange aqueous solution, and Fe/C codoped TiO 2 powders exhibited optimal performance among other photocatalyst under ultraviolet light irradiation and also showed better stability in the air environment.