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Molecules. 2019 Jan 31;24(3). pii: E522. doi: 10.3390/molecules24030522.

Graphene-Like Porous ZnO/Graphene Oxide Nanosheets for High-Performance Acetone Vapor Detection.

Wang H1, Wang D2,3, Tian L4, Li H5, Wang P6,7, Ou N8, Wang X9,10, Yang J11,12.

Author information

1
School of Materials Science and Engineering, University of Shanghai for Science & Technology, No. 516 JunGong Road, Shanghai 200093, China. 162522318@st.usst.edu.cn.
2
School of Materials Science and Engineering, University of Shanghai for Science & Technology, No. 516 JunGong Road, Shanghai 200093, China. wangding@usst.edu.cn.
3
Shanghai Innovation Institute for Materials, Shanghai 200444, China. wangding@usst.edu.cn.
4
School of Materials Science and Engineering, University of Shanghai for Science & Technology, No. 516 JunGong Road, Shanghai 200093, China. tl502004571@126.com.
5
School of Materials Science and Engineering, University of Shanghai for Science & Technology, No. 516 JunGong Road, Shanghai 200093, China. huijunli0701@126.com.
6
School of Materials Science and Engineering, University of Shanghai for Science & Technology, No. 516 JunGong Road, Shanghai 200093, China. pingwang2050@outlook.com.
7
Shanghai Innovation Institute for Materials, Shanghai 200444, China. pingwang2050@outlook.com.
8
School of Materials Science and Engineering, University of Shanghai for Science & Technology, No. 516 JunGong Road, Shanghai 200093, China. ounanquan@163.com.
9
School of Materials Science and Engineering, University of Shanghai for Science & Technology, No. 516 JunGong Road, Shanghai 200093, China. xianyingwang@usst.edu.cn.
10
Shanghai Innovation Institute for Materials, Shanghai 200444, China. xianyingwang@usst.edu.cn.
11
School of Materials Science and Engineering, University of Shanghai for Science & Technology, No. 516 JunGong Road, Shanghai 200093, China. jhyang@usst.edu.cn.
12
Shanghai Innovation Institute for Materials, Shanghai 200444, China. jhyang@usst.edu.cn.

Abstract

In order to obtain acetone sensor with excellent sensitivity, selectivity, and rapid response/recovery speed, graphene-like ZnO/graphene oxide (GO) nanosheets were synthesized using the wet-chemical method with an additional calcining treatment. The GO was utilized as both the template to form the two-dimensional (2-D) nanosheets and the sensitizer to enhance the sensing properties. Sensing performances of ZnO/GO nanocomposites were studied with acetone as a target gas. The response value could reach 94 to 100 ppm acetone vapor and the recovery time could reach 4 s. The excellent sensing properties were ascribed to the synergistic effects between ZnO nanosheets and GO, which included a unique 2-D structure, large specific surface area, suitable particle size, and abundant in-plane mesopores, which contributed to the advance of novel acetone vapor sensors and could provide some references to the synthesis of 2-D graphene-like metals oxide nanosheets.

KEYWORDS:

ZnO/GO nanosheets; acetone gas sensors; nanocomposites; two-dimensional structure

PMID:
30709040
PMCID:
PMC6384705
DOI:
10.3390/molecules24030522
[Indexed for MEDLINE]
Free PMC Article

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