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Sci Rep

Title:		A gas sensor array for the simultaneous detection of multiple VOCs
Author(s):		Zhang Y; Zhao J; Du T; Zhu Z; Zhang J; Liu Q;
Address:		"School of Materials Science and Engineering, Yunnan Key Laboratory for Micro/nano Materials & Technology, Yunnan University, Kunming, 650091, China. School of Materials Science and Engineering, Yunnan Key Laboratory for Micro/nano Materials & Technology, Yunnan University, Kunming, 650091, China. zhj@ynu.edu.cn. School of Materials Science and Engineering, Yunnan Key Laboratory for Micro/nano Materials & Technology, Yunnan University, Kunming, 650091, China. qjliu@ynu.edu.cn"
Journal Title:		Sci Rep
Year:		2017
Volume:		20170516
Issue:		1
Page Number:		1960 -
DOI:		10.1038/s41598-017-02150-z
ISSN/ISBN:		2045-2322 (Electronic) 2045-2322 (Linking)
Abstract:		"Air quality around the globe is declining and public health is seriously threatened by indoor air pollution. Typically, indoor air pollutants are composed of a series of volatile organic compounds (VOCs) that are generally harmful to the human body, especially VOCs with low molecular weights (less than 100 Da). Moreover, in some situations, more than one type of VOC is present; thus, a device that can detect one or more VOCs simultaneously would be most beneficial. Here, we synthesized a sensor array with 4 units to detect 4 VOCs: acetone (unit 1), benzene (unit 2), methanol (unit 3) and formaldehyde (unit 4) simultaneously. All units were simultaneously exposed to 2.5 ppm of all four VOCs. The sensitivity of unit 1 was 14.67 for acetone and less than 2.54 for the other VOCs. The sensitivities of units 2, 3 and 4 to benzene, methanol and formaldehyde were 2 18.64, 20.98 and 17.26, respectively, and less than 4.01 for the other VOCs. These results indicated that the sensor array exhibited good selectivity and could be used for the real-time monitoring of indoor air quality. Thus, this device will be useful in situations requiring the simultaneous detection of multiple VOCs"
Keywords:
Notes:		"PubMed-not-MEDLINEZhang, Yumin Zhao, Jianhong Du, Tengfei Zhu, Zhongqi Zhang, Jin Liu, Qingju eng Research Support, Non-U.S. Gov't England 2017/05/18 Sci Rep. 2017 May 16; 7(1):1960. doi: 10.1038/s41598-017-02150-z"