Sensor Electroquímico Basado en Nanoflores de TiO2 para la Determinación de Nitrobenceno

Mirza Mariela Ruíz-Ramírez; Juan José Hinostroza-Mojarro; Carolina Silva-Carrillo; Balter Trujillo-Navarrete; Rosa María Félix-Navarro; Edgar Alonso Reynoso-Soto

doi:10.37636/recit.v112326

Electrochemical Sensor Based on TiO2 Nanoflowers for the Determination of Nitrobenzene

Authors

Mirza Mariela Ruíz-Ramírez Graduate and Research Center in Chemistry, Instituto Tecnológico de Tijuana, Blvd. Alberto Limón Padilla s / n, Mesa de Otay, Tijuana, Baja California CP 22510, Mexico.
Juan José Hinostroza-Mojarro Graduate and Research Center in Chemistry, Instituto Tecnológico de Tijuana, Blvd. Alberto Limón Padilla s / n, Mesa de Otay, Tijuana, Baja California CP 22510, Mexico.
Carolina Silva-Carrillo Graduate and Research Center in Chemistry, Instituto Tecnológico de Tijuana, Blvd. Alberto Limón Padilla s / n, Mesa de Otay, Tijuana, Baja California CP 22510, Mexico. https://orcid.org/0000-0002-1390-5429
Balter Trujillo-Navarrete Graduate and Research Center in Chemistry, Instituto Tecnológico de Tijuana, Blvd. Alberto Limón Padilla s / n, Mesa de Otay, Tijuana, Baja California CP 22510, Mexico. https://orcid.org/0000-0002-0196-1001
Rosa María Félix-Navarro Graduate and Research Center in Chemistry, Instituto Tecnológico de Tijuana, Blvd. Alberto Limón Padilla s / n, Mesa de Otay, Tijuana, Baja California CP 22510, Mexico. https://orcid.org/0000-0002-0303-0614
Edgar Alonso Reynoso-Soto Graduate and Research Center in Chemistry, Instituto Tecnológico de Tijuana, Blvd. Alberto Limón Padilla s / n, Mesa de Otay, Tijuana, Baja California CP 22510, Mexico. https://orcid.org/0000-0001-7676-411X

DOI:

https://doi.org/10.37636/recit.v112326

Keywords:

TiO2, Nanoflower, Sensor, Electrochemical, Nitrobenzene

Abstract

Nitrobenzene (NB) is a volatile organic compound (VOCs) produced in large quantities for industrial use, is highly toxic and repeated exposure can cause severe damage to human health. The traditional methods for the determination of NB reach concentrations of parts per million, but this pollutant in water is below these concentrations. Due to this it is important the development of new sensors for the determination of NB in water. In this work an electrochemical sensor was developed for the determination of NB with single crystal rutile TiO₂ nanorods. Synthesis parameters were modified to obtain desired morphologies and were characterized by Raman spectroscopy, SEM, EDS and electrochemical techniques. Quantification of NB was performed by cyclic voltammetry (VC). The sensitivity and detection interval of the probes increase with increasing the opening of the TiO2 nanoflowers, reaching concentrations below the parts per billion. As conclusion of this work is that the electrochemical properties in the detection of NB by TiO₂ nanoflowers are directly related to the conditions of synthesis used. The findings of this study have a number of valuable implications for future studies of VOC monitoring.

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References

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SEM micrographs of rutile phase TiO2 nanrods. (a) TiO2-0.25, (b) TiO2-0.50, (c) TiO2-0.75 and (d) TiO2-1.0.

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Published

2020-08-01

How to Cite

Ruíz-Ramírez, M. M., Hinostroza-Mojarro, J. J., Silva-Carrillo, C., Trujillo-Navarrete, B., Félix-Navarro, R. M., & Reynoso-Soto, E. A. (2020). Electrochemical Sensor Based on TiO2 Nanoflowers for the Determination of Nitrobenzene. REVISTA DE CIENCIAS TECNOLÓGICAS, 1(1), 23–26. https://doi.org/10.37636/recit.v112326

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Issue

Vol. 1 No. 1 (2018): July-September

Section

Research articles

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