Journal
RESULTS IN CHEMISTRY
Volume 3, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.rechem.2021.100126
Keywords
Surface enhanced Raman scattering; Silver nanorod; Benzo[a]pyrene
Categories
Funding
- Foundation of Xuzhou City [KC20171]
- Undergraduate Research and Innovation Projects of Jiangsu Province [201910320062Z]
- Graduate Research and Innovation Projects of Jiangsu Province [KYCX20_2341, KYCX20_2344]
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A method for detecting BaP based on SERS technology using silver nanorod substrate was studied, demonstrating the presence of BaP in river water and soil with detection limits down to 1 ppm and 10 ppm respectively, providing new application prospects for environmental detection.
Benzo[a]pyrene (BaP) widely presents in soot, tar, cigarette smoke, and has a strong carcinogenic effect. It is stable in the environment and accumulates through the biological chain. Therefore, it is of vital importance to develop a simple and rapid method to detect Bap in real environment. In this work, based on surface enhanced Raman scattering (SERS) technology, a silver nanorod (AgNR) substrate was developed for detecting BaP in river water and soil. Vibration modes of BaP's characteristic peaks were calculated by density functional theory (DFT). The characteristic peak of BaP is at 1234 cm(-1). In the range of 10 similar to 100 ppb, the characteristic peak intensity of BaP shows good linear relationship with the concentration. The limit of detection (LOD) is down to 1 ppm in river water and 10 ppm in soil, respectively. These results demonstrate the applicability of the AgNR substrate for SERS detection of BaP which present an application prospect of AgNR substrate in environmental detection.
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