ZnCo2O4‑Based Nanoparticle Sensor for 1‑Pentanol Detection
Gabriela O. Gera, Gustavo S. M. dos Santos, André L. M Freitas, Diogo P. Volanti
TL;DR
This paper introduces a new nanoparticle sensor made of ZnCo2O4 that can efficiently detect 1-pentanol, a harmful microbial volatile compound.
Contribution
The novel contribution is the development of a single-phase cubic ZnCo2O4 nanoparticle sensor with high selectivity for 1-pentanol detection.
Findings
ZnCo2O4 nanoparticles were successfully synthesized without impurities.
The sensor showed 83.6% response to 100 ppm 1-pentanol at 300°C.
The material demonstrated high selectivity for 1-pentanol over other volatile compounds.
Abstract
When microbial volatile organic compounds (MVOCs) interact with humans, they can be harmful to health, causing irritation and discomfort. Additionally, they act as biomarkers for diseases. Despite the significance of this topic, there are still few detection tests available. This work explores the sensitive detection of MVOCs using semiconductor metal oxide (SMO). Therefore, this study aimed to evaluate the use of the monophase bimetallic structure ZnCo2O4 as a gas-sensing material for 1-pentanol detection, an MVOC that Trichothecium roseum and Staphylococcus aureus can produce. The study focused on analyzing the effect of a ZnCo2O4 nanostructure on enhancing the gas-sensing properties toward MVOCs detection. The material was prepared via microwave-assisted solvothermal processing and subsequently calcined at 300 °C to obtain a single-phase cubic ZnCo2O4. Characterization using XRD and…
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Taxonomy
TopicsGas Sensing Nanomaterials and Sensors · Advanced Chemical Sensor Technologies · Electrochemical sensors and biosensors