NGHIÊN CỨU TỔNG HỢP THANH NANO TIO2 ĐƠN PHA BROOKITE VÀ TỔ HỢP TIO2-AU ĐỊNH HƯỚNG ỨNG DỤNG PHÂN HỦY CHẤT MÀU Ô NHIỄM NƯỚC

Tóm tắt

Brookite, one of TiO2 phases, were successfully synthesized by hydrothermal method and characterized by
X-ray powder diffraction (XRD), diffuse reflectance UV–Visible spectroscopy (DRS), and scanning electron
microscopy (SEM) and transmissing electron microscope (TEM). Modifying of TiO2 brookite nanorods
surface with gold nanoparticles (Au NPs) by the cold plasma technique was investigated. Photocatalytic
properties of samples were evaluated through the photodegradation of dyes rhodamine 101 (RB101). The
TiO2-Au photocatalysts are active under visible light while the pure TiO2 brookite exhibited high activity
under the ultraviolet light.