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论文类型：期刊论文

发表时间：2012-11-30

发表刊物：JOURNAL OF HAZARDOUS MATERIALS

收录刊物：Scopus、SCIE、EI、PubMed

卷号：241

页面范围：472-477

ISSN号：0304-3894

关键字：Mg-ferrite/hematite/PANI; Benzene; Visible-light; Photocatalytic degradation; In situ FTIR

摘要：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.