期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 241, 期 -, 页码 472-477出版社
ELSEVIER
DOI: 10.1016/j.jhazmat.2012.10.003
关键词
Mg-ferrite/hematite/PANI; Benzene; Visible-light; Photocatalytic degradation; In situ FTIR
资金
- National Nature Science Foundation of China [20837001, 20877013, NSFC-RGC 21061160495]
- National High Technology Research and Development Program of China (863 Program) [2010AA064902]
- Major State Basic Research Development Program of China (973 Program) [2007CB613306]
- Excellent Talents Program of Liaoning Provincial University [LR2010090]
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 CO2 is determined as the final product during the reaction process. (c) 2012 Elsevier B.V. All rights reserved.
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