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Reference type: Journal
Authors: Zhang YM, Liu QJ, Zhang J, Zhu Q, Zhu ZQ
Article Title: A highly sensitive and selective formaldehyde gas sensor using a molecular imprinting technique based on Ag-LaFeO3.
Publication date: 2014
Journal: Journal of Materials Chemistry C
Volume: 2
Issue: (47)
Page numbers: 10067-10072.
DOI: 10.1039/C4TC01972E

Abstract: A novel formaldehyde gas sensor has been developed for the first time using a molecular imprinting technique (MIT) in semiconductor oxides to recognize small organic molecules. For specific recognition, the as-prepared molecularly imprinted nanoparticles exhibit good selectivity for formaldehyde. The molecularly imprinted nanoparticles were mixed with Ag-LaFeO3 to form a compound. The compound with small dimensions and good dispersity possesses an extremely high surface-to-volume ratio. Therefore the compound exhibits even better formaldehyde-sensing properties. At 40 C, the response to 0.5 ppm formaldehyde based on the compound is 24.5, and is lower than 3.0 to the other test gases. The response time and recovery time are 67 s and 104 s, respectively
Template and target information: formaldehyde


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