Concepedia

Detection of mercury(II) with a surface-enhanced Raman scattering sensor based on functionalized gold nanoparticles

Peng Zheng, Xiaofei Shi, Kathrine Curtin, Feng Yang, Nianqiang Wu

Materials Research Express · 2017 · 18 citations · 15 references

DOI

Concepts

Abstract

Gold nanoparticles functionalized with 4-mercaptobenzoic acid can selectively capture Hg2+ in the presence of 2,6-pyridinedicarboxylic acid, generating a fingerprint surface-enhanced Raman scattering (SERS) peak at 374 cm−1. This SERS sensor exhibits a limit of detection of 5 ppt toward Hg2+ in water.

References

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