Loading...
Please wait, while we are loading the content...
Similar Documents
Synthesis of a Flower-Like g-C3N4/ZnO Hierarchical Structure with Improved CH4 Sensing Properties
| Content Provider | Semantic Scholar |
|---|---|
| Author | Li, Xiaojie Li, Yanwei Sun, Guang Zhang, Bo Zhang, Zhanying |
| Copyright Year | 2019 |
| Abstract | In this paper, a hierarchical structure of graphite carbon nitride (g-C3N4) modified ZnO (g-C3N4/ZnO) was synthesized using a simple precipitation-calcination method. Through this method, g-C3N4 nanosheets with a controlled content were successfully decorated on the petals of flower-like ZnO. Various techniques were used to confirm the successful formation of the g-C3N4/ZnO hierarchical structure. The methane (CH4) sensing properties of g-C3N4/ZnO sensor were investigated. The result exhibited that after decorating ZnO with g-C3N4, the CH4 sensing performances of the fabricated sensor were remarkably improved. At the optimum operating temperature of 320 °C, the response of the sensor fabricated with CNZ-3 (the sample with an optimum content of g-C3N4) towards 1000 ppm CH4 was as high as 11.9 (Ra/Rg), which was about 2.2 times higher than that of the pure ZnO sensor (5.3). In addition, the CNZ-3 sensor also exhibited a fast response/recovery speed (15/28 s) and outstanding long-term stability. The enhancing CH4 sensing mechanism may be contributed to enlarged surface area, pore structure, and g-C3N4-ZnO n-n junction. |
| File Format | PDF HTM / HTML |
| DOI | 10.3390/nano9050724 |
| PubMed reference number | 31083416 |
| Journal | Medline |
| Volume Number | 9 |
| Journal | Nanomaterials |
| Alternate Webpage(s) | https://res.mdpi.com/nanomaterials/nanomaterials-09-00724/article_deploy/nanomaterials-09-00724.pdf?attachment=1&filename= |
| Alternate Webpage(s) | https://doi.org/10.3390/nano9050724 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
