About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
2D Materials – Preparation, Properties, Modeling & Applications
|
| Presentation Title |
2D Materials-Based Electronic Nanosensors for PFAS Detection in the Air |
| Author(s) |
Mengqiang Zhao, Md Mohidul Alam Sabuj, Sufian Abedrabbo |
| On-Site Speaker (Planned) |
Mengqiang Zhao |
| Abstract Scope |
The Per- and Polyfluoroalkyl Substances (PFAS) are a class of emerging contaminants of concerns. In this work, we successfully developed 2D MoS2 and 2D MXene-based FET sensors for the rapid detection of airborne PFAS molecules with a high sensitivity. For 2D MoS2, we developed a universal functionalization method based on the use of hBN film encapsulation and pyrene-based linker molecules. We demonstrated that PBH functionalization on the hBN encapsulation layer is essential for the sensitive and selective detection of airborne PFAS. The as-fabricated 2D MoS2-based FET sensors achieved a high signal-to-noise ratio of 40-200, quick response time of 5-40 s, and a low limit of detection (LoD) value of 1.6 ppb. In addition, we also development the MXene-based FET sensors for airborne PFAS detection. It was found that the surface termination plays an important role in the PFAS detection. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Electronic Materials, Nanotechnology, Surface Modification and Coatings |