Synthesis and H2S Gas Sensing Characteritics of Nanostructured V2O5
Main Article Content
Abstract
In this study, V2O5 nanomaterials were successfully synthesized by a facile hydrothermal method and tested for application in preparing toxic H2S gas sensor. SEM image shows that the material has the shape of nanoplates with different sizes ranging from 100 to 500 nm. The XRD pattern shows that the material has a single phase of Orthorhombic crystal of V2O5. The results of the gas sensitivity survey show that the material good respond to H2S at low concentrations (2.5-20 ppm) with relatively fast response and recovery time. This study demonstrates the potential of application of V2O5 material in H2S gas sensors.
Keywords
V2O5, Gas sensor, H2S, Hydrothermal
Article Details
References
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Chem. 159(2011), 245–250.
[2]. R. Bari, S. Patil, A. R. Bari, Detection of H2S gas at
lower operating temperature using sprayed
nanostructured In2O3 thin films, Mater. Sci. 36(2013),
967–972.
[3]. Chou. C, Hydrogen Sulfide: Human Health Aspects:
Concise International Chemical Assessment
Document 53(2003); World Health Organization:
Geneva, Switzerland.
[4]. A. D. Wiheeb, et al, Present Technologies for
Hydrogen Sulfide Removal from Gaseous Mixtures.
Rev. Chem. Eng. 29(2013), 449–470.
[5]. A. Boontum, et al, H2S sensing characteristics of Nidoped CaCu3Ti4O12 films synthesized by a sol-gel
method, Sensors and Actuators B: Chemical.
260(2018), 877–887.
[6]. T. K. Le, M. Kang, S. Kim, A review on the optical
characterization of V2O5 micro-nanostructures,
Ceramics International. 45(2019), 15781–15798.
[7]. K. Schneider, M. Lubecka, A. Czapla, V2O5 thin
films for gas sensor applications, Sensors and
Actuators B: Chemical. 236(2016), 970–977.
[8]. P. Hu, et al, Porous V2O5 microspheres: A high-capacity
cathode material for aqueous zinc–ion batteries”,
Chemical Communications, 55(2019), 8486-8489.
[9]. M. Ghosh, et al, A rationally designed self-standing
V2O5 electrode for high voltage non-aqueous all-solidstate symmetric (2.0 V) and asymmetric (2.8 V)
supercapacitors, Nanoscale. 10(2018), 8741-8751.
[10]. A. A. Mane, et al, Effect of substrate temperature on
physicochemical and gas sensing properties of
sprayed orthorhombic V2O5 thin films, Measurement.
131(2019), 223-234.
[11]. S. K. Jayaraj, et al, Enhanced photocatalytic activity
of V2O5 nanorods for the photodegradation of organic
dyes: A detailed understanding of the mechanism and
their antibacterial activity, Materials Science in
Semiconductor processing. 85(2018), 122–133.
[12]. A. Kuddus, et al, Role of facile synthesized V2O5 as
hole transport layer for CdS/CdTe heterojunction
solar cell: Validation of simulation using
experimental data, Superlattices and Microstructures.
132(2019), 106168.
[13]. Y. Vijayakumar, et al, V2O5 nanofibers: Potential
contestant for high performance xylene sensor,
Journal of Alloys and Compounds. 731(2018), 805–
811.
[14]. Đ. Q. Đạt, et al, Synthesis and NH3 gas sensing
characteristics of rGO/WO3 nanocomposite, Journal
of Science and Technology. 124 (2018) 068–071.
[15]. Y. Vijayakumar, et al, Nanostructured flower like
V2O5 thin films and its room temperature sensing
characteristics, Ceramics International. 41(2015),
2221–2227.
[16]. Z. Wu, et al, Ultrafast Response/Recovery and High
Selectivity of the H2S Gas Sensor Based on αFe2O3 Nano – Ellipsoids from One-Step
Hydrothermal Synthesis, ACS Appl Mater Interfaces.
11(2019), 12761-12769.