Dithizone Modified Silver Nanomaterials for Recyclable Surface-enhanced Raman Spectroscopy Detection of Lead Ions

GUO Yanyan, TIAN Huaixiang, LI Yuanting, LI Dan

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Chinese Journal of Light Scattering ›› 2021, Vol. 33 ›› Issue (1) : 16-23. DOI: 10.13883/j.issn1004-5929.202101002
Surface-Enhanced Raman Scattering (SERS)

Dithizone Modified Silver Nanomaterials for Recyclable Surface-enhanced Raman Spectroscopy Detection of Lead Ions

  • GUO Yanyan1, TIAN Huaixiang2, LI Yuanting1, LI Dan1*
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Abstract

The study took heavy metal lead ions (Pb2+) as the research object, constructed dithizone-modified silver nanoparticles, and successfully realized the cyclic surface-enhanced Raman detection of lead ions by using redox method and surface enhanced Raman technology. The detection response range of functional materials to lead ions is 1nM~10μM, and the detection limit can reach 0.35nM. Using the method to detect lead ions in actual environmental water samples, the recovery rate is 91.6%~106.8%, and the relative standard deviation is between 4.1% and 7.9%. The method has the characteristics of convenience, rapidity and reusability, and has a huge application prospect in the rapid detection of heavy metal ions in environmental samples.

Key words

Surface-enhanced Raman scattering (SERS) / dithizone / lead ions / silver nanoparticles / recyclability

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GUO Yanyan, TIAN Huaixiang, LI Yuanting, LI Dan. Dithizone Modified Silver Nanomaterials for Recyclable Surface-enhanced Raman Spectroscopy Detection of Lead Ions. Chinese Journal of Light Scattering. 2021, 33(1): 16-23 https://doi.org/10.13883/j.issn1004-5929.202101002

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