Resonance Rayleigh Scattering and SERS Spectral Detection of Trace Hg(II) Based on the Gold Nanocatalysis

Nanomaterials
Huixiang OuyangZhiliang Jiang

Abstract

Mercury (Hg) is a heavy metal pollutant, there is an urgent need to develop simple and sensitive methods for Hg(II) in water. In this article, a simple and sensitive resonance Rayleigh scattering (RRS) method was developed for determination of 0.008-1.33 µmol/L Hg, with a detection limit of 0.003 μmol/L, based on the Hg(II) regulation of gold nanoenzyme catalysis on the HAuCl₄-H₂O₂ to form gold nanoparticles (AuNPs) with an RRS peak at 370 nm. Upon addition of molecular probes of Victoria blue B (VBB), the surface-enhanced Raman scattering (SERS) peak linearly decreased at 1612 cm(-1) with the Hg(II) concentration increasing in the range of 0.013-0.5 μmol/L. With its good selectivity and good accuracy, the RRS method is expected to be a promising candidate for determining mercury ions in water samples.

References

Jun 28, 2008·Langmuir : the ACS Journal of Surfaces and Colloids·Chi-Wei LiuHuan-Tsung Chang
Jul 26, 2008·Nature Nanotechnology·Lizeng GaoXiyun Yan
May 16, 2009·Analytical and Bioanalytical Chemistry·Guoqing WangAndrew J deMello
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Jul 4, 2012·Nature Nanotechnology·Filipe NatalioWolfgang Tremel
Oct 30, 2012·Nature Nanotechnology·Roberto de la Rica, Molly M Stevens

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Citations

Jul 18, 2018·Luminescence : the Journal of Biological and Chemical Luminescence·Chongning LiZhiliang Jiang
Jul 10, 2019·Analytical Sciences : the International Journal of the Japan Society for Analytical Chemistry·Na LiXi Mai
Sep 15, 2020·Frontiers in Chemistry·Huixiang OuyangZhiliang Jiang
Sep 29, 2018·Luminescence : the Journal of Biological and Chemical Luminescence·Junbo LiWenlong Wei
Aug 14, 2021·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Wedad A Al-Onazi, Mohamed A Abdel-Lateef

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Methods Mentioned

BETA
atomic absorption spectrometry
biosensors
surface plasmon resonance
atomic

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