Facile synthesis of SrCO<inf>3</inf>-Sr(OH)<inf>2</inf>/PPy nanocomposite with enhanced photocatalytic activity under visible light

Alfredo Márquez-Herrera, Victor Manuel Ovando-Medina, Blanca Estela Castillo-Reyes, Martin Zapata-Torres, Miguel Meléndez-Lira, Jaquelina González-Castañeda

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© 2015 by the authors. Pyrrole monomer was chemically polymerized onto SrCO3-Sr(OH)2powders to obtain SrCO3-Sr(OH)2/polypyrrole nanocomposite to be used as a candidate for photocatalytic degradation of methylene blue dye (MB). The material was characterized by Fourier transform infrared (FTIR) spectroscopy, UV/Vis spectroscopy, and X-ray diffraction (XRD). It was observed from transmission electronic microscopy (TEM) analysis that the reported synthesis route allows the production of SrCO3-Sr(OH)2nanoparticles with particle size below 100 nm which were embedded within a semiconducting polypyrrole matrix (PPy). The SrCO3-Sr(OH)2and SrCO3-Sr(OH)2/PPy nanocomposites were tested in the photodegradation of MB dye under visible light irradiation. Also, the effects of MB dye initial concentration and the catalyst load on photodegradation efficiency were studied and discussed. Under the same conditions, the efficiency of photodegradation of MB employing the SrCO3-Sr(OH)2/PPy nanocomposite increases as compared with that obtained employing the SrCO3-Sr(OH)2nanocomposite.
Original languageAmerican English
StatePublished - 1 Jan 2016
Externally publishedYes


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