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Open AccessArticle

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

1,†, 1,2,†, 1, 1, 1,2, 1, 1,2,* and 1,2,*
1
School of Materials Science and Engineering, University of Shanghai for Science & Technology, No. 516 JunGong Road, Shanghai 200093, China
2
Shanghai Innovation Institute for Materials, Shanghai 200444, China
*
Authors to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editors: Mo Yang, Tjong Sie Chin and Xin Zhao
Molecules 2019, 24(3), 522; https://doi.org/10.3390/molecules24030522
Received: 6 January 2019 / Revised: 27 January 2019 / Accepted: 29 January 2019 / Published: 31 January 2019
(This article belongs to the Special Issue Graphene Nanocomposites)
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PDF [4382 KB, uploaded 31 January 2019]
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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. View Full-Text
Keywords: ZnO/GO nanosheets; nanocomposites; acetone gas sensors; two-dimensional structure ZnO/GO nanosheets; nanocomposites; acetone gas sensors; two-dimensional structure
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Wang, H.; Wang, D.; Tian, L.; Li, H.; Wang, P.; Ou, N.; Wang, X.; Yang, J. Graphene-Like Porous ZnO/Graphene Oxide Nanosheets for High-Performance Acetone Vapor Detection. Molecules 2019, 24, 522.

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