Hydrothermal synthesis of Fe-doped TiO2 nanostructure photocatalyst

Van Nghia Nguyen, Ngoc Khoa Truong Nguyen and Phi Hung Nguyen

Abstract

Fe-doped TiO₂ catalyst was prepared by the hydrothermal method. The resulting nanopowders were characterized by x-ray diffraction, transmission electron microscopy and Raman and UV-visible spectroscopies. The photocatalytic activity of the Fe-doped TiO₂ was tested by decomposition of methylene orange with a concentration of 10 mg l⁻¹ in aqueous solution. The obtained results showed that methylene orange was significantly degraded after irradiation for 90 min under a halogen lamp and sunlight. The doping effect on the photocatalytic activity of the iron-doped catalyst samples are discussed