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P1.1.9 Impacts of Mesostructure and Organic Loadings of Fluoroalcohol Derivatives/SBA15 Hybrids on Nerve Agent Simulant Sensing

Event
14th International Meeting on Chemical Sensors - IMCS 2012
2012-05-20 - 2012-05-23
Nürnberg/Nuremberg, Germany
Chapter
P1.1 Biosensors
Author(s)
Q. Zheng, H. Li, Z. Cheng, J. Xu - Department of Chemistry, College of Science, Shanghai University (China)
Pages
839 - 842
DOI
10.5162/IMCS2012/P1.1.9
ISBN
978-3-9813484-2-2
Price
free

Abstract

This paper uses the measurement of quartz crystal microbalance (QCM) to investigate the effects of fluoroalcohol derivatives/SBA-15 hybrids with varied mesopore structures and organic loadings on the sensing behavior of nerve agent simulant DMMP. The results show that much faster and higher response value is achieved when the hybrid materials have relative higher surface area and pore volume. It is especially true when detecting DMMP in a ppb level. On the other hand, mesoporous hybrids with lower loadings of fluoroacohol derivatives show weaker selective properties. The specific interaction with DMMP vapor is greatly enhanced as the amount of fluoroalcohol derivatives increases. Therefore, in the fluoroalcohol derivatives functionalized SBA-15 materials, pore ordering and organic loadings are clearly important factors determining QCM-based DMMP sensing behavior.

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