Graphene-Wrapped ZnO Nanocomposite with Enhanced Room-Temperature Photo-Activated Toluene Sensing Properties
Graphene-wrapped ZnO nanocomposites were fabricated by a simple solvothermal technology with a one-pot route. The structure and morphology of these as-fabricated samples were systematically characterized. The adding of graphene enhanced the content of the oxygen vacancy defect of the sample. All gas...
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MDPI AG
2024-02-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/17/5/1009 |
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| author | Qingwu Huang Jinjin Wu Dawen Zeng Peng Zhou |
| author_facet | Qingwu Huang Jinjin Wu Dawen Zeng Peng Zhou |
| author_sort | Qingwu Huang |
| collection | DOAJ |
| description | Graphene-wrapped ZnO nanocomposites were fabricated by a simple solvothermal technology with a one-pot route. The structure and morphology of these as-fabricated samples were systematically characterized. The adding of graphene enhanced the content of the oxygen vacancy defect of the sample. All gas-sensing performances of sensors based on as-prepared samples were thoroughly studied. Sensors displayed an ultrahigh response and exceptional selectivity at room temperature under blue light irradiation. This excellent and enhanced toluene gas-sensing property was principally attributed to the synergistic impacts of the oxygen vacancy defect and the wrapped graphene in the composite sensor. The photo-activated graphene-wrapped ZnO sensor illustrated potential application in the practical detection of low concentrations of toluene under explosive environments. |
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| format | Article |
| id | doaj.art-50be573056594fce91cccb61d03ac2fb |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-04-25T00:25:23Z |
| publishDate | 2024-02-01 |
| publisher | MDPI AG |
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| series | Materials |
| spelling | doaj.art-50be573056594fce91cccb61d03ac2fb2024-03-12T16:48:55ZengMDPI AGMaterials1996-19442024-02-01175100910.3390/ma17051009Graphene-Wrapped ZnO Nanocomposite with Enhanced Room-Temperature Photo-Activated Toluene Sensing PropertiesQingwu Huang0Jinjin Wu1Dawen Zeng2Peng Zhou3Analytical and Testing Center of Huazhong University of Science and Technology, Huazhong University of Science and Technology, No. 1037, Luoyu Road, Wuhan 430074, ChinaAnalytical and Testing Center of Huazhong University of Science and Technology, Huazhong University of Science and Technology, No. 1037, Luoyu Road, Wuhan 430074, ChinaNanomaterials and Smart Sensors Laboratory (NSSL), Department of Materials Science and Engineering, Huazhong University of Science and Technology, No. 1037, Luoyu Road, Wuhan 430074, ChinaAnalytical and Testing Center of Huazhong University of Science and Technology, Huazhong University of Science and Technology, No. 1037, Luoyu Road, Wuhan 430074, ChinaGraphene-wrapped ZnO nanocomposites were fabricated by a simple solvothermal technology with a one-pot route. The structure and morphology of these as-fabricated samples were systematically characterized. The adding of graphene enhanced the content of the oxygen vacancy defect of the sample. All gas-sensing performances of sensors based on as-prepared samples were thoroughly studied. Sensors displayed an ultrahigh response and exceptional selectivity at room temperature under blue light irradiation. This excellent and enhanced toluene gas-sensing property was principally attributed to the synergistic impacts of the oxygen vacancy defect and the wrapped graphene in the composite sensor. The photo-activated graphene-wrapped ZnO sensor illustrated potential application in the practical detection of low concentrations of toluene under explosive environments.https://www.mdpi.com/1996-1944/17/5/1009grapheneZnOphoto-activatedroom temperaturegas sensingtoluene |
| spellingShingle | Qingwu Huang Jinjin Wu Dawen Zeng Peng Zhou Graphene-Wrapped ZnO Nanocomposite with Enhanced Room-Temperature Photo-Activated Toluene Sensing Properties Materials graphene ZnO photo-activated room temperature gas sensing toluene |
| title | Graphene-Wrapped ZnO Nanocomposite with Enhanced Room-Temperature Photo-Activated Toluene Sensing Properties |
| title_full | Graphene-Wrapped ZnO Nanocomposite with Enhanced Room-Temperature Photo-Activated Toluene Sensing Properties |
| title_fullStr | Graphene-Wrapped ZnO Nanocomposite with Enhanced Room-Temperature Photo-Activated Toluene Sensing Properties |
| title_full_unstemmed | Graphene-Wrapped ZnO Nanocomposite with Enhanced Room-Temperature Photo-Activated Toluene Sensing Properties |
| title_short | Graphene-Wrapped ZnO Nanocomposite with Enhanced Room-Temperature Photo-Activated Toluene Sensing Properties |
| title_sort | graphene wrapped zno nanocomposite with enhanced room temperature photo activated toluene sensing properties |
| topic | graphene ZnO photo-activated room temperature gas sensing toluene |
| url | https://www.mdpi.com/1996-1944/17/5/1009 |
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