Polyvinylpyrrolidone/reduced graphene oxide nanocomposites thin films coated on quartz crystal microbalance for NO2 detection at room temperature

Junlong Huang; Guangzhong Xie; Yong Zhou; Tao Xie; HuiLing Tai; Guangjin Yang

doi:10.1117/12.2069492

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21 August 2014 Polyvinylpyrrolidone/reduced graphene oxide nanocomposites thin films coated on quartz crystal microbalance for NO₂ detection at room temperature

Junlong Huang; Guangzhong Xie; Yong Zhou; Tao Xie; HuiLing Tai; Guangjin Yang

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Proceedings Volume 9285, 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Smart Structures and Materials for Manufacturing and Testing; 92850B (2014) https://doi.org/10.1117/12.2069492
Event: 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT 2014), 2014, Harbin, China

Abstract

Polyvinylpyrrolidone (PVP)/reduced graphene oxide (RGO) nanocomposites are sprayed on quartz crystal microbalance (QCM) for NO₂ sensing. The thin films are characterized by Fourier transform infrared spectroscopy (FTIR) and ultraviolet-visible spectroscopy (UV-VIS). The experimental results reveal that PVP/RGO sensor exhibits higher sensitivity and shorter recovery time than those of PVP. Besides, the response to 20 ppm NO₂ is higher than other gases such as CO, CO₂ and NH₃ even at 100ppm. When the PVP/RGO sensor is exposed to these gases, the good selectivity to NO₂ makes the sensor ideal for NO₂ detection.

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Junlong Huang, Guangzhong Xie, Yong Zhou, Tao Xie, HuiLing Tai, and Guangjin Yang "Polyvinylpyrrolidone/reduced graphene oxide nanocomposites thin films coated on quartz crystal microbalance for NO₂ detection at room temperature", Proc. SPIE 9285, 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Smart Structures and Materials for Manufacturing and Testing, 92850B (21 August 2014); https://doi.org/10.1117/12.2069492

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