Photocatalytic activity of anodic TiO2 nanotube powder - First results

Authors

  • Paola Carolina Schweikofski Instituto de Materiales de Misiones (IMAM), Universidad Nacional de Misiones - Consejo Nacional de Investigaciones Científicas y Técnicas (UNaM - CONICET), Facultad de Ciencias Exactas, Químicas y Naturales, Félix de Azara 1552 (3300) Posadas, Misiones - Argentina
  • Anabela Natalia Dwojak Instituto de Materiales de Misiones (IMAM), Universidad Nacional de Misiones - Consejo Nacional de Investigaciones Científicas y Técnicas (UNaM - CONICET), Facultad de Ciencias Exactas, Químicas y Naturales, Félix de Azara 1552 (3300) Posadas, Misiones - Argentina
  • María Laura Vera Instituto de Materiales de Misiones (IMAM), Universidad Nacional de Misiones - Consejo Nacional de Investigaciones Científicas y Técnicas (UNaM - CONICET), Facultad de Ciencias Exactas, Químicas y Naturales, Félix de Azara 1552 (3300) Posadas, Misiones - Argentina
  • Hernán Darío Traid Instituto de Materiales de Misiones (IMAM), Universidad Nacional de Misiones - Consejo Nacional de Investigaciones Científicas y Técnicas (UNaM - CONICET), Facultad de Ciencias Exactas, Químicas y Naturales, Félix de Azara 1552 (3300) Posadas, Misiones - Argentina
  • Marta Irene Litter Instituto de Investigación e Ingeniería Ambiental (3iA), Universidad Nacional de General San Martín - Consejo Nacional de Investigaciones Científicas y Técnicas (UNSAM – CONICET), Escuela de Hábitat y Sostenibilidad, Av. 25 de Mayo y Francia (1650), San Martín, Buenos Aires- Argentina

Keywords:

TiO2 nanotube powder, Anodic oxidation, Hexavalent chromium, Heterogeneous photocatalysis

Abstract

TiO2 nanotubes powder were synthesized by mechanical detachment of TiO2 coatings obtained by anodic oxidation of titanium plates, using a solution of ethylene glycol, NH4F and H2O as electrolyte, at 80 V for 1 h. The morphology of the nanotubes was observed by scanning electron microscopy (SEM) and the crystalline phases by X-ray diffraction (XRD). The photocatalytic activity was evaluated using a solution of [EDTA]/[Cr(VI)] = 1.25 at pH 2 as a model contaminant. The system was irradiated with UV light and a Cr(VI) transformation of 70% was obtained after 5 h of irradiation.

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Published

2024-06-10

How to Cite

Schweikofski, P. C., Dwojak, A. N., Vera, M. L., Traid, H. D., & Litter, M. I. (2024). Photocatalytic activity of anodic TiO2 nanotube powder - First results. AJEA (Proceedings of UTN Academic Conferences and Events), (AJEA 25). Retrieved from https://rtyc.utn.edu.ar/index.php/ajea/article/view/1552

Conference Proceedings Volume

No. AJEA 25 (2023): 8th Youth Meeting Researchers in Materials Science and Technology - JIM 2023

Section

Proceedings - Nanomaterials

License

Copyright (c) 2024 Paola Carolina Schweikofski, Anabela Natalia Dwojak, María Laura Vera, Hernán Darío Traid, Marta Irene Litter

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

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