Electrochemical Sensor Based on TiO2 Nanoflowers for the Determination of Nitrobenzene

Electrochemical Sensor Based on TiO2 Nanoflowers for the Determination of Nitrobenzene

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...

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Huvudupphovsmän: Ruíz-Ramírez, Mirza Mariela, Hinostroza-Mojarro, Juan José, Silva-Carrillo, Carolina, Trujillo-Navarrete, Balter, Félix-Navarro, Rosa María, Reynoso-Soto, Edgar Alonso
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Publicerad: Universidad Autónoma de Baja California 2020
Länkar:https://recit.uabc.mx/index.php/revista/article/view/28
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spelling recit-article-282022-10-07T17:06:51Z Electrochemical Sensor Based on TiO2 Nanoflowers for the Determination of Nitrobenzene Sensor Electroquímico Basado en Nanoflores de TiO2 para la Determinación de Nitrobenceno Ruíz-Ramírez, Mirza Mariela Hinostroza-Mojarro, Juan José Silva-Carrillo, Carolina Trujillo-Navarrete, Balter Félix-Navarro, Rosa María Reynoso-Soto, Edgar Alonso TiO2 Nanoflower Sensor Electrochemical Nitrobenzene TiO2 Nanoflores Sensor Electroquímico Nitrobenceno. 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. El Nitrobenceno (NB) es un compuesto orgánico volátil (COV) que se produce en grandes cantidades para uso industrial, es altamente tóxico y a exposición repetida puede causar daños severos a la salud humana. Los métodos tradicionales para la determinación del NB alcanzan concentraciones en partes por millón, pero este contaminante en agua está por debajo de estas concentraciones. Debido a esto es importante desarrollar nuevos sensores para la determinación de NB en agua. En este trabajo, un sensor electroquímico fue desarrollado para la determinación de NB con nanovarillas de TiO2 mono cristalinas en fase rutilo. Los parámetros de síntesis fueron modificados para obtener las morfologías deseadas y se caracterizaron por espectroscopia Raman, SEM, EDS y técnicas electroquímicas. La cuantificación de NB se realizó por voltamperometría cíclica (VC). La sensibilidad y el intervalo de detección de las sondas incrementaron con el aumento de la apertura de las nanoflores de TiO2, alcanzando concentraciones debajo de partes por billón. Como conclusión de este trabajo es que las propiedades electroquímicas de detección de NB por nanoflores de TiO2 están directamente relacionadas con las condiciones de síntesis que se usaron. Los hallazgos de este estudio tienen una serie de implicaciones valiosas para estudios futuros de monitoreos de COV. Universidad Autónoma de Baja California 2020-08-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Research article Artículo de investigación application/pdf text/html application/xml https://recit.uabc.mx/index.php/revista/article/view/28 10.37636/recit.v112326 REVISTA DE CIENCIAS TECNOLÓGICAS; Vol. 1 No. 1 (2018): July-September; 23-26 REVISTA DE CIENCIAS TECNOLÓGICAS; Vol. 1 Núm. 1 (2018): Julio-Septiembre; 23-26 2594-1925 spa https://recit.uabc.mx/index.php/revista/article/view/28/31 https://recit.uabc.mx/index.php/revista/article/view/28/79 https://recit.uabc.mx/index.php/revista/article/view/28/170 Copyright (c) 2018 ​Ruiz-Ramírez Mirza Mariela, Hinostroza-Mojarro Juan José, Silva-Carrillo Carolina, Trujillo-Navarrete Balter, Félix-Navarro Rosa María, Reynoso-Soto Edgar Alonso http://creativecommons.org/licenses/by/4.0
institution RECIT
collection OJS
language spa
format Online
author Ruíz-Ramírez, Mirza Mariela
Hinostroza-Mojarro, Juan José
Silva-Carrillo, Carolina
Trujillo-Navarrete, Balter
Félix-Navarro, Rosa María
Reynoso-Soto, Edgar Alonso
spellingShingle Ruíz-Ramírez, Mirza Mariela
Hinostroza-Mojarro, Juan José
Silva-Carrillo, Carolina
Trujillo-Navarrete, Balter
Félix-Navarro, Rosa María
Reynoso-Soto, Edgar Alonso
Electrochemical Sensor Based on TiO2 Nanoflowers for the Determination of Nitrobenzene
author_facet Ruíz-Ramírez, Mirza Mariela
Hinostroza-Mojarro, Juan José
Silva-Carrillo, Carolina
Trujillo-Navarrete, Balter
Félix-Navarro, Rosa María
Reynoso-Soto, Edgar Alonso
author_sort Ruíz-Ramírez, Mirza Mariela
title Electrochemical Sensor Based on TiO2 Nanoflowers for the Determination of Nitrobenzene
title_short Electrochemical Sensor Based on TiO2 Nanoflowers for the Determination of Nitrobenzene
title_full Electrochemical Sensor Based on TiO2 Nanoflowers for the Determination of Nitrobenzene
title_fullStr Electrochemical Sensor Based on TiO2 Nanoflowers for the Determination of Nitrobenzene
title_full_unstemmed Electrochemical Sensor Based on TiO2 Nanoflowers for the Determination of Nitrobenzene
title_sort electrochemical sensor based on tio2 nanoflowers for the determination of nitrobenzene
description 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.
publisher Universidad Autónoma de Baja California
publishDate 2020
url https://recit.uabc.mx/index.php/revista/article/view/28
_version_ 1792095358602444800

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