Haibo Xing, Tong Chen, Yong Qian, Qi Huang, Tianze We, Xiaojun Hu, Jian Zhao and Bo Wang
{"title":"A gold–silver nanostar 2D array composite structure for rapid SERS determination of PAHs","authors":"Haibo Xing, Tong Chen, Yong Qian, Qi Huang, Tianze We, Xiaojun Hu, Jian Zhao and Bo Wang","doi":"10.1039/D5AY00285K","DOIUrl":null,"url":null,"abstract":"<p >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<small><sup>−8</sup></small> M, respectively. The stable dual-metal nanomaterial AuNS@Ag 2D array has potential application prospects and can be used for environmental monitoring.</p>","PeriodicalId":64,"journal":{"name":"Analytical Methods","volume":" 18","pages":" 3825-3835"},"PeriodicalIF":2.7000,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Analytical Methods","FirstCategoryId":"92","ListUrlMain":"https://pubs.rsc.org/en/content/articlelanding/2025/ay/d5ay00285k","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, ANALYTICAL","Score":null,"Total":0}
引用次数: 0
Abstract
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 × 10−8 M, respectively. The stable dual-metal nanomaterial AuNS@Ag 2D array has potential application prospects and can be used for environmental monitoring.
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