Thin film synthesis of open microspheres of TiO2 nanorods applied as an Hg2 + electrochemical sensor
DOI:
https://doi.org/10.37636/recit.v3296105Keywords:
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.Downloads
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F. Londoño-franco, T. Londoño-muñoz, G. Muñoz-garcía, “Los riesgos de los metales pesados en la salud humana y animal”. Biotecnol. en el Sect. Agropecu. y Agroindustrial, vol. 14, no. 2, pp. 145–153, 2016. https://doi.org/10.18684/BSAA(14)145-153. DOI: https://doi.org/10.18684/BSAA(14)145-153
D. Martín-Yerga, A. Costa-García, “Recent Advances in the Electrochemical Detection of Mercury”, Curr. Opin. Electrochem., vol. 3, no. 1, pp. 91–96, 2017. https://doi.org/10.1016/j.coelec.2017.06.012. DOI: https://doi.org/10.1016/j.coelec.2017.06.012
Norma Oficial Mexicana NOM-127-SSA1-1994, Salud ambiental, agua para uso y consumo humano-limites permisibles de calidad y tratamientos a que debe someterse el agua para su potabilización. http://www.salud.gob.mx/unidades/cdi/nom/127ssa14.html.
Y. Zhou, Y. Yang, X. Deng, G. Zhang, Y. Zhang, C. Zhang, S. Shuang, Y. He, W. Sun,“Electrochemical sensor for determination of ractopamine based on aptamer/octadecanethiol Janus particles”, Sensors and Actuators B: Chemical, vol. 276, pp. 204-210,2018. https://doi.org/10.1016/j.snb.2018.08.110. DOI: https://doi.org/10.1016/j.snb.2018.08.110
M. Begoña, G. García, C. García, “Los Biosensores Electroquímicos: Herramientas de La Analítica Y Del Diagnóstico Clínico”., vol. 6, pp. 197–222, 2010. http://hdl.handle.net/10651/11669.
O. Alev, E. Şennik, N. Kılınç, Z. Öztürk, “Gas Sensor Application of Hydrothermally Growth TiO2 Nanorods”, Procedia Eng., vol. 120, pp. 1162–1165, 2015. https://doi.org/10.1016/j.proeng.2015.08.747. DOI: https://doi.org/10.1016/j.proeng.2015.08.747
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Copyright (c) 2020 Juan José Hinostroza Mojarro, Mirza Mariela Ruiz Ramírez, Carolina Silva Carrillo, Rosa Maria Félix Navarro, Paul Antonio Valle Trujillo, Balter Trujillo Navarrete
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