A gold–silver nanostar 2D array composite structure for rapid SERS determination of PAHs
This study developed a portable multi-ring aromatic hydrocarbon (PAH) detection tool using a dual-metal surface-enhanced Raman scattering (SERS) substrate. Gold-silver nanostars (AuNS@Ag) were synthesized by a secondary seed-mediated growth method and assembled into a two-dimensional array by a liquid-phase interface self-assembly method, uniformly deposited on a silicon wafer. The PAHs in water samples were identified using a portable Raman spectrometer. The SERS detection platform has high sensitivity and stability, and can detect pyrene and phenanthrene with concentrations of 10-8 M and 0.5 × 10<sup>-8</sup> M, respectively. The stable dual-metal nanomaterial AuNS@Ag 2D array has potential application prospects and can be used for environmental monitoring.
Authors
- Yong Qian (ORCID: https://orcid.org/0000-0003-3142-6891)
- Haibo Xing (ORCID: https://orcid.org/0000-0002-8970-8042)
- Zhao Jian (ORCID: https://orcid.org/0000-0001-5966-0917)
- Qi Huang (ORCID: https://orcid.org/0009-0005-1193-7696)
- Xiaojun Hu (ORCID: https://orcid.org/0000-0001-8906-1165)
- Tong Chen (ORCID: https://orcid.org/0000-0002-8391-9949)
- Bo Wang (ORCID: https://orcid.org/0000-0001-7312-0837)
- Tianze We
Institutions
- State Administration of Foreign Experts Affairs (CN)
- Shanghai Institute of Technology (CN)
Publication Details
- Journal
- Analytical Methods
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1039/d5ay00285k
- Citations
- 3
- Primary Topic
- Gold and Silver Nanoparticles Synthesis and Applications
- Type
- article
- Field-Weighted Citation Impact
- 1.28