Article (Scientific journals)
Carbon functionalized cladding bismuth tungstate-based 3D twisted micro-flowers for benzaldehyde detection under ultraviolet light excitation
Zheng, Zichen; Liu, Kewei; Debliquy, Marc et al.
2024In Sensors and Actuators. B, Chemical, 415, p. 135982
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Keywords :
Anti-humidity; Benzaldehyde; Carbon cladding; Gas sensor; WO3/Bi2WO6; Bismuth tungstates; Functionalized; Gas sensing; Gas-sensors; Semiconducting metal oxides; Ultraviolet light excitation; WO3/bi2WO6; Electronic, Optical and Magnetic Materials; Instrumentation; Condensed Matter Physics; Surfaces, Coatings and Films; Metals and Alloys; Electrical and Electronic Engineering; Materials Chemistry
Abstract :
[en] Although semiconducting metal oxide displayed remarkable gas sensing capabilities, their path to commercialization is impeded by several challenges. A primary hurdle is the consistent response of sensing films with impervious feature under diverse detection environment. This report introduces an efficient fabrication technique that yields carbon functionalized cladding bismuth tungstate-based benzaldehyde sensors. The 3D twisted micro-flowers feature was obtained and carbon cladding was uniformly attached by a one-pot wet chemistry strategy. The C0.75/WO3/Bi2WO6 sensor demonstrates superior sensing capabilities for benzaldehyde at a wide range of detection. It features a remarkable sensitivity (33.7 @ 50 ppm), swift recovery time of 49 seconds, enduring stability exceeding 15 days, and robust selectivity, all at a modest room temperature. Even in conditions of high moisture, the response value exhibited minimal degradation, decreasing by a mere 8.96% compared to its performance in the absence of ambient humidity. The complementary density functional theory calculations suggest that the Cx/WO3/Bi2WO6 exhibits a greater benzaldehyde adsorption energy and more robust anti-humidity feature compared to WO3/Bi2WO6, contributing to its enhanced gas-sensing efficacy.
Disciplines :
Materials science & engineering
Author, co-author :
Zheng, Zichen;  College of Mechanical Engineering, Yangzhou University, Yangzhou, China
Liu, Kewei;  College of Mechanical Engineering, Yangzhou University, Yangzhou, China ; Service de Science des Matériaux, faculté Polytechnique, université de Mons, Mons, Belgium
Debliquy, Marc ;  Université de Mons - UMONS > Faculté Polytechnique > Service de Science des Matériaux
Zhang, Chao;  College of Mechanical Engineering, Yangzhou University, Yangzhou, China
Language :
English
Title :
Carbon functionalized cladding bismuth tungstate-based 3D twisted micro-flowers for benzaldehyde detection under ultraviolet light excitation
Publication date :
15 September 2024
Journal title :
Sensors and Actuators. B, Chemical
ISSN :
0925-4005
eISSN :
1873-3077
Publisher :
Elsevier B.V.
Volume :
415
Pages :
135982
Peer reviewed :
Peer Reviewed verified by ORBi
Research unit :
F502 - Science des Matériaux
Research institute :
R400 - Institut de Recherche en Science et Ingénierie des Matériaux
Funding text :
This work was supported by the Outstanding Youth Foundation of Jiangsu Province of China (No. BK20211548), the Yangzhou Science and Technology Plan Project (No. YZ2023246), the China Scholarship Council (No. 202308320445) and Postgraduate Research and Practice Innovation Program of Jiangsu Province of China (No. KYCX23_3551).
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since 25 July 2024

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