title: Preparation of TiO2Nanotubes Loaded on Polyurethane Membrane and Research on Their Photocatalytic Properties.
abstract: To solve the problem of separation and recovery of photocatalyst in water, the modification of TiO2was studied as well as its immobilization and photocatalytic properties. To improve surface properties, TiO2nanotubes were synthesized by a hydrothermal method and silylated by silane coupling agents to introduce a certain functional group. Supported on polyurethane (PU) membrane, TiO2nanotubes were prepared to produce immobilized PU/TiO2. Catalysts were characterized and identified by means of Fourier-transform infrared spectroscopy (FTIR), attenuated total reflectance Fourier-transform infrared spectroscopy (ATR-FTIR), and scanning electron microscopy (SEM). Results showed that silylated TiO2nanotubes were well grafted on the surface of the activated PU membrane. With a 300 W high pressure mercury lamp as light source, the photocatalytic activity and stability of immobilized PU/TiO2were investigated with degrading methyl orange. It was showed that the target is degraded by immobilized PU/TiO2with high activation and the catalytic performance is stable for a long time if catalyst is washed with ethanol.
authors.affiliation: College of Chemical Engineering, Guizhou University of Engineering Science, Bijie 551700, China.
authors.forename: Longli
authors.identifier: 0000-0002-8789-5665
authors.initials: L
authors.lastname: Lin
authors.affiliation: School of Chemical Engineering, Guizhou Institute of Technology, Guiyang 550003, China.
authors.forename: Qijun
authors.initials: Q
authors.lastname: Wu
authors.affiliation: School of Light Industry, Guizhou Institute of Technology, Guiyang 550003, China.
authors.forename: Xun
authors.identifier: 0000-0002-7033-0537
authors.initials: X
authors.lastname: Gong
authors.affiliation: College of Chemical Engineering, Guizhou University of Engineering Science, Bijie 551700, China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Zhang