Effective coupling of BiPO4/g-C3N4 hybrid composites in ciprofloxacin photodegradation

  • A. I. Navarro-Aguilar
  • S. Obregón
  • D. B. Hernández-UrestiEmail author
  • J. Suárez-de la Cruz


A BiPO4/g-C3N4 photoactive system has been prepared by means of a practical ultrasound-assisted procedure in aqueous medium. The obtained hybrid composites were widely characterized by X-ray powder diffraction, Fourier-transform infrared spectroscopy, UV–vis diffuse reflectance spectroscopy, scanning electron microscopy and N2 adsorption–desorption measurements. The photocatalytic features of the samples were examined through the degradation of orange G dye and ciprofloxacin antibiotic, where the higher photocatalytic performance for the degradation of both pollutants was achieved for the g-C3N4 with 1 wt% loading of BiPO4 (1-BiPO4 sample). To explain this outstanding performance, a possible mechanism involving the delocalization of the photogenerated charge carriers in the BiPO4/g-C3N4 system is discussed. Also, total organic carbon analysis and photocatalytic tests with radical scavengers were performed to elucidate the importance of the reactive oxidizing species during the photocatalytic process.


g-C3N4 BiPO4 Sonochemistry Photocatalysis Ciprofloxacin 



We wish to thank to CONACYT in Problemas Nacionales 2015 clave 610, SEP-PRODEP for the support through the program “Apoyo a la Incorporación de Nuevos Profesores de Tiempo Completo”, clave 511-6/17-7538.

Supplementary material

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Supplementary material 1 (DOCX 372 kb)


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Copyright information

© Springer Nature B.V. 2019

Authors and Affiliations

  • A. I. Navarro-Aguilar
    • 1
  • S. Obregón
    • 1
  • D. B. Hernández-Uresti
    • 1
    Email author
  • J. Suárez-de la Cruz
    • 1
  1. 1.Facultad de Ciencias Físico MatemáticasUniversidad Autónoma de Nuevo León – CICFIMSan Nicolás de los GarzaMexico

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