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GO-TiO 2 as a Highly Performant Photocatalyst Maximized by Proper Parameters Selection

Author

Listed:
  • Aida M. Díez

    (Nanochemistry Research Group, International Iberian Nanotechnology Laboratory, Avenida Mestre José Veiga s/n, 4715-330 Braga, Portugal
    CINTECX, Grupo de Bioingeniería y Procesos Sostenibles, Departamento de Ingeniería Química, Campus Lagoas-Marcosende, Universidade de Vigo, 36310 Vigo, Spain)

  • Marta Pazos

    (CINTECX, Grupo de Bioingeniería y Procesos Sostenibles, Departamento de Ingeniería Química, Campus Lagoas-Marcosende, Universidade de Vigo, 36310 Vigo, Spain)

  • M. Ángeles Sanromán

    (CINTECX, Grupo de Bioingeniería y Procesos Sostenibles, Departamento de Ingeniería Química, Campus Lagoas-Marcosende, Universidade de Vigo, 36310 Vigo, Spain)

  • Yury V. Kolen’ko

    (Nanochemistry Research Group, International Iberian Nanotechnology Laboratory, Avenida Mestre José Veiga s/n, 4715-330 Braga, Portugal)

Abstract

The synthesis and characterization of novel graphene oxide coupled to TiO 2 (GO-TiO 2 ) was carried out in order to better understand the performance of this photocatalyst, when compared to well-known TiO 2 (P25) from Degussa. Thus, its physical-chemical characterization (FTIR, XRD, N 2 isotherms and electrochemical measurements) describes high porosity, suitable charge and high electron mobility, which enhance pollutant degradation. In addition, the importance of the reactor set up was highlighted, testing the effect of both the irradiated area and distance between lamp and bulb solution. Under optimal conditions, the model drug methylthioninium chloride (MC) was degraded and several parameters were assessed, such as the water matrix and the catalyst reutilization, a possibility given the addition of H 2 O 2 . The results in terms of energy consumption compete with those attained for the treatment of this model pollutant, opening a path for further research.

Suggested Citation

  • Aida M. Díez & Marta Pazos & M. Ángeles Sanromán & Yury V. Kolen’ko, 2022. "GO-TiO 2 as a Highly Performant Photocatalyst Maximized by Proper Parameters Selection," IJERPH, MDPI, vol. 19(19), pages 1-14, September.
    • Handle: RePEc:gam:jijerp:v:19:y:2022:i:19:p:11874-:d:919858
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    Cited by:

    1. Jinkai Shu & Bozhi Ren & Wei Zhang & An Wang & Sen Lu & Shuyu Liu, 2022. "Influencing Factors and Kinetics of Modified Shell Powder/La-Fe-TiO 2 Photocatalytic Degradation of Pyridine Wastewater," IJERPH, MDPI, vol. 19(22), pages 1-16, November.

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