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Synthesis and Characterization of Polyaniline/MCM-41 Nanocomposites and Their Photocatalytic Activity

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Abstract:

The novel organic–inorganic nanocomposites were synthesized via in-situ polymerization of polyaniline (PANI) with mesoporous silica (MCM-41) for methylene blue (MB) dye degradation under visible light. The synthesized PANI/MCM-41 nanocomposites were characterized through Fourier transform infrared (FTIR), X-ray diffraction (XRD), Raman spectroscopy, field emission scanning electron microscopy (FESEM), and UV-visible studies. The structural and optical properties confirmed the interaction between PANI and MCM-41. The photocatalytic experiments showed that the MB dye was efficiently degraded by ∼70% under light irradiation over the surface of the PANI/MCM-41 nanocomposites. The degradation might occur due to the efficient charge separation of the e–h+ pairs at the interface of PANI and MCM-41 in the excited state under light irradiation.

Keywords: DYE DEGRADATION; MESOPOROUS MATERIAL; METHYLENE BLUE; ORGANIC-INORGANIC NANOCOMPOSITE; POLYANILINE

Document Type: Research Article

DOI: https://doi.org/10.1166/jnn.2011.3161

Publication date: 2011-01-01

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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