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Coral-like ZnFe2O4–ZnO mesoporous heterojunction architectures: synthesis and enhanced sensing properties for triethylamine

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Abstract

Unique coral-like ZnFe2O4–ZnO heterojunction architectures with abundant mesopores are successfully prepared via a facile two-step process. The as-fabricated ZnFe2O4–ZnO heterojunction architecture sensor is used for the detection of the volatile organic compound triethylamine (TEA). The gas sensing performance of the as-prepared sensor is carefully investigated and the results show high response value, fast response/recovery times, good repeatability, and superior selectivity with regard to TEA detection. Specifically, the sensing response of the ZnFe2O4–ZnO sensor is remarkably improved and shows a fast response time of 0.9 s. The enhanced sensing mechanism of the coral-like mesoporous heterojunction architectures is discussed and a possible growth mechanism is also proposed.

Graphical abstract: Coral-like ZnFe2O4–ZnO mesoporous heterojunction architectures: synthesis and enhanced sensing properties for triethylamine

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Article information


Submitted
05 Feb 2020
Accepted
18 Mar 2020
First published
18 Mar 2020

Inorg. Chem. Front., 2020, Advance Article
Article type
Research Article

Coral-like ZnFe2O4–ZnO mesoporous heterojunction architectures: synthesis and enhanced sensing properties for triethylamine

T. Yang, X. Yang, M. Zhu, H. Zhao and M. Zhang, Inorg. Chem. Front., 2020, Advance Article , DOI: 10.1039/D0QI00134A

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