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Nanoparticles of zinc oxide (ZnO) with acicular rod-like morphology were synthesized using a bicontinuous microemulsion and coated with polypyrrole (PPy), by polymerization in the presence of dioctyl sodium sulfosuccinate (AOT) surfactant with ammonium persulfate as oxidizing agent to obtain nanocomposites of ZnO/PPy. The resulting material was characterized by FTIR, Raman spectroscopy, and scanning electron microscopy. The synthesized nanocomposite consisted of ZnO nanoparticles immersed in a polypyrrole matrix with a conductivity of 6.4 × 10−6 S/cm. The synthesized nanocomposite was tested in the photodegradation of methylene blue (MB) dye under visible light irradiation resulting in photodegradation efficiency of 95.2 %25 after 60 min of irradiation using 3.6 g/L of nanocomposite in an aqueous solution of MB at 20 mg/L. Pseudo first-order kinetics were used to describe the photodegradation reactions. © 2015, Springer-Verlag Berlin Heidelberg.
Nanocomposites; Photocatalyst; Visible light; ZnO/polypyrrole Ammonium persulfate; Aromatic compounds; Dyes; Fourier transform infrared spectroscopy; Irradiation; Light; Metal nanoparticles; Microemulsions; Nanocomposites; Nanoparticles; Photocatalysts; Polypyrroles; Scanning electron microscopy; Solutions; Synthesis (chemical); Zinc oxide; Bicontinuous microemulsion; Photodegradation efficiency; Photodegradation of methylene blue; Pseudo first-order kinetics; Resulting materials; Visible light; Visible-light irradiation; ZnO; Photodegradation; ammonium persulfate; docusate sodium; methylene blue; monomer; nanocomposite; oxidizing agent; polypyrrole; reactive oxygen metabolite; sodium; sulfur; superoxide; unclassified drug; zinc oxide nanoparticle; aqueous solution; Article; bicontinuous microemulsion; chemical composition; conductance; cyclic potentiometry; degradation; electron; first order kinetics; infrared spectroscopy; irradiation; kinetics; light; light absorption; microemulsion; morphology; oxidation; particle size; phonon; photodegradation; photolysis; polymerization; priority journal; radiation absorption; Raman spectrometry; scanning electron microscopy; synthesis; ultraviolet spectrophotometry; visible light irradiation
Composite of acicular rod-like ZnO nanoparticles and semiconducting polypyrrole photoactive under visible light irradiation for methylene blue dye photodegradation
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