Abstract
With the aggravation of the air polluted by harmful gases, gas sensors to detect harmful gases have been widely concerned. Here, novel TiO2//Bi2WO6 Janus nanofibers (JNFs) have been fabricated successfully via a facile conjugated electrospinning, and are further used to manufacture gas sensors to display high selectivity for ethanol gas molecules and fast response and recovery speed. TiO2 and Bi2WO6 on both sides of Janus nanofibers can form unique heterostructures through close interfacial contact, and thus promoting charge transfer and enhancing gas sensing properties of the JNFs. The gas sensor based on a unique heterostructure has great application potential in the field of gas detection.
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