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Nanoscale azo pigment immobilized on carbon nanotubes via liquid phase reprecipitation approach
Affiliation:1. Department of Polymer Science and Engineering, State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, PR China;2. Institute of Functional Polymer Science and Engineering, College of Materials Science and Engineering, Tongji University, Shanghai 200092, PR China;1. Laboratory of Environmental Sciences and Technology, The Xinjiang Technical Institute of Physics and Chemistry, Key Laboratory of Functional Materials and Devices for Special Environments, Chinese Academy of Sciences, Urumqi 830011, China;2. Xinjiang Key Laboratory of Electronic Information Materials and Devices, 40-1 South Beijing Road, Urumqi 830011, China;3. CAS Key Laboratory of Functional Materials and Devices for Special Environments, Xinjiang Technical Institute of Physics and Chemistry, CAS, 40-1 South Beijing Road, Urumqi 830011, China;1. School of Science, Beijing Technology and Business University, Beijing, 100048, PR China;2. Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, PR China;3. University of the Chinese Academy of Sciences, Beijing, 100049, PR China;1. Department of Biology and Chemistry, Hunan University of Science and Engineering, Yongzhou, 425199, PR China;2. College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China
Abstract:Nanoscale azo pigment immobilized on the outer shell of multiwalled carbon nanotubes (MWCNT–AZO) were prepared by modified liquid phase reprecipitation method, and the MWCNT–AZO hybrid was characterized by means of TEM, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and UV–VIS absorption. The photoconductivity of single-layered photoreceptors, where MWCNT–AZO served as the charge generation material (CGM), was studied by the xerographic photoinduced discharge method. The results indicated that the MWCNT–AZO nano hybrid showed broader and enhanced photosensitivity than MWCNT/bulk azo pigments (AZO) blend or the bulk AZO did, which was interpreted in terms of nanometer size effect of MWCNT–AZO hybrid and charge transfer from AZO nanoparticles to MWCNT.
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