Detection of formic acid and acetic acid gases by a QCM sensor coated with an acidified multi-walled carbon nanotube membrane

doi:10.1080/09593330.2021.1983025

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	Detection of formic acid and acetic acid gases by a QCM sensor coated with an acidified multi-walled carbon nanotube membrane
	Cai, Jingfang 2; Yan, Ying 1,2; Wang, Weiwei 2; Ma, Yuanyuan 2; Cai, Lankun 2; Wu, Laiming 3; Zhou, Hao 3
刊名	ENVIRONMENTAL TECHNOLOGY
	2021-10-14
页码	11
关键词	QCM acidized-MMWCNTs formic acid vapour acetic acid vapour gas sensor
ISSN号	0959-3330
DOI	10.1080/09593330.2021.1983025
通讯作者	Zhou, Hao(haoshm1970@163.com)
英文摘要	In this paper, the acidified multi-walled carbon nanotubes (MWCNTs) film was coated on the quartz crystal microbalance (QCM) to prepare a high-performance sensor for the real-time detection of organic acid gases. The material characteristics of the thin films were analysed by field emission scanning electro microscopy (FESEM), Raman spectra and X-ray photoelectron spectroscopy (XPS). The organic acid vapours' sensing results indicated that acidized-MWCNTs thin film exhibited good frequency response, repeatability, reversibility and stability. There is a clear linear relationship between the frequency offset and the organic acid vapours with concentration below 5.0 ppm, and the detection limit of 0.77 and 0.73 ppm for formic and acetic acid vapours, respectively. The sensor shows the highest response to formic acid vapour than acetic acid vapour which may be ascribed to molecular polarity. Furthermore, a sensing mechanism model was introduced to understand the adsorption reaction between organic acid molecules and acidized-MWCNTs. This paper proves that acidized-MWCNTs is a potential and suitable material for organic acid vapour detection when combined with a QCM sensor.
资助项目	National Key Research and Development Program of China[2020YFC1522500] ; Open Fund of Shandong Key Laboratory of Corrosion Science
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	TAYLOR & FRANCIS LTD
WOS记录号	WOS:000707820400001
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/176684]
专题	海洋研究所_海洋腐蚀与防护研究发展中心
通讯作者	Zhou, Hao
作者单位	1.Chinese Acad Sci, Inst Oceanol, Shandong Key Lab Corros Sci, Jinan, Shandong, Peoples R China 2.East China Univ Sci & Technol, State Environm Protect Key Lab Environm Risk Asse, Shanghai, Peoples R China 3.Shanghai Museum, 1118 Wulong Rd, Shanghai 200050, Peoples R China
推荐引用方式 GB/T 7714	Cai, Jingfang,Yan, Ying,Wang, Weiwei,et al. Detection of formic acid and acetic acid gases by a QCM sensor coated with an acidified multi-walled carbon nanotube membrane[J]. ENVIRONMENTAL TECHNOLOGY,2021:11.
APA	Cai, Jingfang.,Yan, Ying.,Wang, Weiwei.,Ma, Yuanyuan.,Cai, Lankun.,...&Zhou, Hao.(2021).Detection of formic acid and acetic acid gases by a QCM sensor coated with an acidified multi-walled carbon nanotube membrane.ENVIRONMENTAL TECHNOLOGY,11.
MLA	Cai, Jingfang,et al."Detection of formic acid and acetic acid gases by a QCM sensor coated with an acidified multi-walled carbon nanotube membrane".ENVIRONMENTAL TECHNOLOGY (2021):11.