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Nanomaterials 2017, 7(5), 114; doi:10.3390/nano7050114

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

Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin 541004, China
Guangxi Colleges and Universities Key Laboratory of Regional Ecological Environment Analysis and Pollution Control of West Guangxi, College of Chemistry and Environment Engineering, Baise University, Baise 533000, China
Authors to whom correspondence should be addressed.
Academic Editor: Thomas Nann
Received: 5 March 2017 / Revised: 6 May 2017 / Accepted: 8 May 2017 / Published: 17 May 2017
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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. View Full-Text
Keywords: mercury ion; gold nanoparticle; nanocatalysis; resonance Rayleigh scattering; SERS mercury ion; gold nanoparticle; nanocatalysis; resonance Rayleigh scattering; SERS

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Ouyang, H.; Li, C.; Liu, Q.; Wen, G.; Liang, A.; Jiang, Z. Resonance Rayleigh Scattering and SERS Spectral Detection of Trace Hg(II) Based on the Gold Nanocatalysis. Nanomaterials 2017, 7, 114.

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