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Colloid and Polymer Science

, Volume 293, Issue 12, pp 3459–3469 | Cite as

Composite of acicular rod-like ZnO nanoparticles and semiconducting polypyrrole photoactive under visible light irradiation for methylene blue dye photodegradation

  • Víctor M. Ovando-MedinaEmail author
  • Raúl G. López
  • Blanca E. Castillo-Reyes
  • Pedro A. Alonso-Dávila
  • Hugo Martínez-Gutiérrez
  • Omar González-Ortega
  • Lorena Farías-Cepeda
Original Contribution

Abstract

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 % 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.

Keywords

ZnO/polypyrrole Nanocomposites Photocatalyst Visible light 

Notes

Acknowledgements

B.E. Castillo-Reyes acknowledges the scholarship from CONACYT (229857). V.M.O.M. wants to thank the Consejo Nacional de Ciencia y Tecnología—México by Grant # SEP-80843. V.M.O.M. thanks the hospitality of Dr. Farías-Cepeda at the sabbatical leave in Facultad de Ciencias Químicas, Universidad Autónoma de Coahuila.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  • Víctor M. Ovando-Medina
    • 1
    Email author
  • Raúl G. López
    • 2
  • Blanca E. Castillo-Reyes
    • 3
  • Pedro A. Alonso-Dávila
    • 3
  • Hugo Martínez-Gutiérrez
    • 4
  • Omar González-Ortega
    • 3
  • Lorena Farías-Cepeda
    • 5
  1. 1.Ingeniería Química, Coordinación Académica Región Altiplano (COARA)Universidad Autónoma de San Luis Potosí, Carretera a Cedral KM 5+600MatehualaMexico
  2. 2.Centro de Investigación en Química AplicadaSaltilloMexico
  3. 3.Facultad de Ciencias QuímicasUniversidad Autónoma de San Luis Potosí. Av. Dr. Manuel Nava No.6, Zona UniversitariaSan Luis PotosíMexico
  4. 4.Centro de Nanociencias y micro y nanotecnologíasInstituto Politécnico NacionalLuis Enrique Erro S/NMexico
  5. 5.Departamento de Ingeniería Química, Facultad de Ciencias QuímicasUniversidad Autónoma de CoahuilaSaltilloMexico

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