Article (Scientific journals)
Decorated-Induced Oxygen Vacancy Engineering for Ultra-Low Concentration Nonanal Sensing: A Case Study of La-Decorated Bi2O2CO3.
Zheng, Zichen; Liu, Kewei; Zhou, Yiwen et al.
2024In Advanced Science, p. 2408096
Peer reviewed
 

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Decorated‐Induced Oxygen Vacancy Engineering for Ultra‐Low Concentration Nonanal Sensing_ A Case Study of La‐Decorated Bi2O2CO3.pdf
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Keywords :
bismuth subcarbonate; decoration; gas sensor; oxygen vacancy; Chemical strategy; Cooked rice; Gas-sensors; Synthesised; Vacancy engineering; Wet chemicals; Chemical Engineering (all); Materials Science (all)
Abstract :
[en] La-decorated Bi2O2CO3 (BCO-La) microspheres are synthesized using a facile wet chemical strategy for sensing low-concentration nonanal (C9H18O) at room temperature. These BCO-La gas sensors are applied to evaluate agricultural product quality, specifically for cooked rice. The sensitivity of the BCO-6La sensor significantly surpassed that of the pure BCO sensor, achieving a response value of 174.6 when detecting 30 ppm nonanal gas. Notably, the BCO-6La sensor demonstrated a faster response time (36 s) when exposed to 18 ppm of nonanal. Additionally, the selectivity toward nonanal gas detection is higher (approximately 4-24 times) compared to interfering gases (1-octanol, geranyl acetone, linalool, hexanal, 2-pentyfuran, and 1-octen-3-ol) during cooked rice quality detection. The gas sensing mechanism and the factors contributing to the enhanced sensing performance of the BCO-La microspheres are demonstrated through in situ FT-IR spectra and DFT analysis while the realistic detection scenario is carried out. In a broader context, the reported sensors here represent a novel platform for the detection and monitoring of gases released by agricultural products during storage.
Disciplines :
Chemistry
Author, co-author :
Zheng, Zichen ;  College of Mechanical Engineering, Yangzhou University, Yangzhou, 225127, P. R. China ; Research Institute for Materials Science and Engineering, Chimie des Interactions Plasma-Surface, University of Mons, 20 Place du Parc, Mons, 7000, Belgium
Liu, Kewei;  College of Mechanical Engineering, Yangzhou University, Yangzhou, 225127, P. R. China ; Service de Science des Matériaux, Faculté Polytechnique, University of Mons, Mons, 7000, Belgium
Zhou, Yiwen;  College of Mechanical Engineering, Yangzhou University, Yangzhou, 225127, P. R. China
Xu, Kaichun;  College of Mechanical Engineering, Yangzhou University, Yangzhou, 225127, P. R. China
Luo, Yifan;  College of Mechanical Engineering, Yangzhou University, Yangzhou, 225127, P. R. China
Ding, Jiabao;  College of Mechanical Engineering, Yangzhou University, Yangzhou, 225127, P. R. China
Bittencourt, Carla  ;  Université de Mons - UMONS > Faculté des Sciences > Service de Chimie des Interactions Plasma-Surface
Debliquy, Marc ;  Université de Mons - UMONS > Faculté Polytechnique > Service de Science des Matériaux
Zhang, Chao ;  College of Mechanical Engineering, Yangzhou University, Yangzhou, 225127, P. R. China
Language :
English
Title :
Decorated-Induced Oxygen Vacancy Engineering for Ultra-Low Concentration Nonanal Sensing: A Case Study of La-Decorated Bi2O2CO3.
Publication date :
28 September 2024
Journal title :
Advanced Science
ISSN :
2198-3844
eISSN :
2198-3844
Publisher :
John Wiley and Sons Inc, Germany
Pages :
e2408096
Peer reviewed :
Peer reviewed
Research unit :
S882 - Chimie des Interactions Plasma-Surface
Research institute :
Research Institute for Materials Science and Engineering
Funders :
China Scholarship Council
Available on ORBi UMONS :
since 02 November 2024

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