Synthesis and Characterization of Polyaniline/MCM-41 Nanocomposites and Their Photocatalytic Activity
Authors: Ameen, Sadia; Im, Yu-Bin; Jo, Chul Gi; Kim, Young Soon; Shin, Hyung-Shik
Source: Journal of Nanoscience and Nanotechnology, Volume 11, Number 1, January 2011 , pp. 541-545(5)
Publisher: American Scientific Publishers
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.
Document Type: Research article
Publication date: 2011-01-01
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