Preparation and Gas Sensing Properties of Hollow ZnS Microspheres
Hollow ZnS microspheres are synthesized by a facile hydrothermal method. Morphology and structure of the ZnS microspheres are analyzed by SEM, TEM, XRD and N2 sorption technique, Gas sensing properties of the as-prepared ZnS sensor are also systematically investigated. The
results show that the ZnS microspheres have well-developed porous and hollow nanostructure. The sensor based on the ZnS microspheres exhibits ultra-fast response (1–2 s) and fast recovery time (7–34 s) towards ethanol at the optimal operating temperature of 160 °C. Moreover,
the ZnS sensor also demonstrates high selectivity to other gases such as methanol, benzene, dichloromethane and hexane, suggesting that it is a promising candidate for ethanol sensing applications.
Document Type: Research Article
Publication date: 01 March 2016
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