title: Enhanced visible-light induced degradation of benzene on Mg-ferrite/hematite/PANI nanospheres: in situ FTIR investigation.
abstract: The dramatic enhanced visible-light photocatalytic activity of Mg-ferrite/hematite nanospheres photocatalysts on benzene were obtained after hybridized by polyaniline (PANI) using the chemisorption method. The samples were characterized by scanning electron microscope, transmission electron microscopy, X-ray diffraction, Fourier transform infrared spectra and UV-Vis diffuse reflectance spectroscopy. The enhancement of photocatalytic degradation of benzene under visible-light irradiation was mainly ascribed to the high efficiency of charge separation induced by the hybrid effect of PANI and Mg-ferrite/hematite. By using the in situ FTIR technique, ethyl acetate, carboxylic acid and aldehyde could be regarded as the intermediate products, and CO(2) is determined as the final product during the reaction process.
authors.affiliation: Key Laboratory of Industrial Ecology and Environmental Engineering and State Key Laboratory of Fine Chemical, School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Shen
authors.forename: Qidong
authors.initials: Q
authors.lastname: Zhao
authors.forename: Xinyong
authors.initials: X
authors.lastname: Li
authors.forename: Deling
authors.initials: D
authors.lastname: Yuan
authors.forename: Yang
authors.initials: Y
authors.lastname: Hou
authors.forename: Shaomin
authors.initials: S
authors.lastname: Liu
mesh_terms: D000814:Aniline Compounds / Q000737:chemistry; D001554:Benzene / Q000302:isolation & purification* / Q000528:radiation effects; D002384:Catalysis; D004785:Environmental Pollutants / Q000302:isolation & purification* / Q000528:radiation effects; D005290:Ferric Compounds / Q000737:chemistry; D008027:Light; D017616:Magnesium Compounds / Q000737:chemistry; D046529:Microscopy, Electron, Transmission; D054118:Nanospheres / Q000737:chemistry*; D010083:Oxidants, Photochemical / Q000737:chemistry*; D010084:Oxidation-Reduction; D010316:Particle Size; D017550:Spectroscopy, Fourier Transform Infrared; D013499:Surface Properties; D014961:X-Ray Diffraction
chemical_list: D000814:Aniline Compounds; D004785:Environmental Pollutants; D005290:Ferric Compounds; D017616:Magnesium Compounds; D010083:Oxidants, Photochemical; C416807:polyaniline; C001215:ferrite; C000499:ferric oxide; D001554:Benzene