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Improvement in $NO_{2}$ Gas Sensing Properties of Semiconductor-Type Sensors by Loading Pt into $BiVO_{4}$ Nanocomposites at Room Temperature
| Content Provider | MDPI |
|---|---|
| Author | Lin, Wang-De Lin, Shu-Yun Chavali, Murthy |
| Copyright Year | 2021 |
| Description | In the present study, we report the first attempt to prepare a conducive environment for $Pt/BiVO_{4}$ nanocomposite material reusability for the promotion of sustainable development. Here, the $Pt/BiVO_{4}$ nanocomposite was prepared using a hydrothermal method with various weight percentages of platinum for use in $NO_{2}$ gas sensors. The surface morphologies and structure of the $Pt/BiVO_{4}$ nanocomposite were characterized by scanning electron microscope (SEM), transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDX), and X-ray diffraction (XRD). The results showed that Pt added to $BiVO_{4}$ with 3 wt.% $Pt/BiVO_{4}$ was best at a concentration of 100 ppm $NO_{2}$, with a response at 167.7, and a response/recovery time of 12/35 s, respectively. The $Pt/BiVO_{4}$ nanocomposite-based gas sensor exhibits promising nitrogen dioxide gas-sensing characteristics, such as fast response, highly selective detection, and extremely short response/recovery time. Additionally, the mechanisms of gas sensing in $Pt/BiVO_{4}$ nanocomposites were explored in this paper. |
| Starting Page | 5913 |
| e-ISSN | 19961944 |
| DOI | 10.3390/ma14205913 |
| Journal | Materials |
| Issue Number | 20 |
| Volume Number | 14 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-10-09 |
| Access Restriction | Open |
| Subject Keyword | Materials Remote Sensing No2 Gas Sensors Pt/bivo4 Nanocomposite |
| Content Type | Text |
| Resource Type | Article |
