Thin film synthesis of open microspheres of TiO2 nanorods applied as an Hg2 + electrochemical sensor

Authors

  • Juan José Hinostroza-Mojarro National Technological of México / I.T. Tijuana / Postgraduate in Engineering Science, Blvd. Alberto Limón Padilla s / n. Col. Otay Tecnológico, Tijuana, B.C. 22510, Mexico. https://orcid.org/0000-0002-4671-6958
  • Mirza Mariela Ruiz Ramírez National Technological of México / I.T. Tijuana / Postgraduate in Engineering Science, Blvd. Alberto Limón Padilla s / n. Col. Otay Tecnológico, Tijuana, B.C. 22510, Mexico. http://orcid.org/0000-0003-1783-8419
  • Carolina Silva Carrillo National Technological of México / I.T. Tijuana / Center for Graduates and Research in Chemistry http://orcid.org/0000-0002-1390-5429
  • Rosa Maria Felix Navarro National Technological of México / I.T. Tijuana / Center for Graduates and Research in Chemistry http://orcid.org/0000-0003-3178-1164
  • Paul Antonio Valle Trujillo National Technological of México / I.T. Tijuana / Postgraduate in Engineering Science, Blvd. Alberto Limón Padilla s / n. Col. Otay Tecnológico, Tijuana, B.C. 22510, Mexico. http://orcid.org/0000-0001-6567-1065
  • Balter Trujillo Navarrete National Technological of México / I.T. Tijuana / Postgraduate in Engineering Science, Blvd. Alberto Limón Padilla s / n. Col. Otay Tecnológico, Tijuana, B.C. 22510, Mexico. https://orcid.org/0000-0002-0196-1001

DOI:

https://doi.org/10.37636/recit.v3296105

Keywords:

TiO2, Nanorods, Sensor, Electrochemical, Mercury.

Abstract

Mercury (Hg) is one of the most toxic pollutants, it has become a serious threat to human health and the environment. Its exposure produces serious toxic effects in living beings, affecting the nervous, digestive and immune systems, and other parts of the organism. The environmental impact is significant and requires the attention of all the parties involved. For this reason, the development of analytical methods for the detection of low concentrations of Hg in different samples is a matter of scientific interest. Currently, the use of titanium oxide (TiO2) has revolutionized several fields generating new technological applications. The area of the sensors has not been alien to this revolution due to the properties of this material. In this research work, the development of a novel electrochemical sensor for the determination of ultratraces of mercury in water, from oriented nano-flowers of TiO2 is disclosed. The synthesis of the material was carried out on a carbon substrate (graphite) by the hydrothermal method. The determination of Hg2+ in water was made by cyclic voltammetry and differential pulse. The electrochemical tests of the sensor showed high sensitivity, selectivity and stability, as well as a wide range of detection in ppb.

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References

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SEM micrographs of rutile phase TiO2 nano-flowers. a) TiO2 32.8 kx, b) TiO2 at 172 kx.

Published

2020-06-30

How to Cite

Hinostroza-Mojarro, J. J., Ruiz Ramírez, M. M., Silva Carrillo, C., Felix Navarro, R. M., Valle Trujillo, P. A., & Trujillo Navarrete, B. (2020). Thin film synthesis of open microspheres of TiO2 nanorods applied as an Hg2 + electrochemical sensor. REVISTA DE CIENCIAS TECNOLÓGICAS, 3(2), 96–105. https://doi.org/10.37636/recit.v3296105

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Research articles

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