Journal
NANOPHOTONICS
Volume 10, Issue 18, Pages 4419-4445Publisher
WALTER DE GRUYTER GMBH
DOI: 10.1515/nanoph-2021-0363
Keywords
heavy metal ions; nanoparticles; rapid detec-tion; SERS substrate; surface-enhanced Raman scattering spectroscopy
Categories
Funding
- National Natural Science Foundation of China [11974152, 21671089]
- LiaoNing Revitalization Talents Program [XLYC1807162]
- Shenyang High-level Innovative Talents Program [RC200565]
- Natural Science Foundation of Liaoning Province [2020-YKLH-22]
- Scientific research projects of Liaoning Provincial Department of Education [L2020002]
- Science program of Liaoning Provincial Department of Education [LJKZ0097]
- Intercollegiate cooperation project of colleges and universities of Liaoning Provincial Department of Education
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Heavy metals are widely used in industry and agriculture, but can lead to environmental pollution and harm to human health. Developing techniques with high accuracy and sensitivity is significant for detecting heavy metal ions.
Heavy metals have been widely applied in industry, agriculture, and other fields because of their outstanding physics and chemistry properties. However, heavy metal pollution is inevitable in the process of mass production and emission. Heavy metal ions will cause irreversible harm to the human body and other organisms due to their nondegradable nature even at low concentrations of exposure and ingestion. Therefore, it is of great significance for human health and ecological environment to develop high accuracy and sensitivity as well as stable techniques for detecting heavy metal ions. In recent years, surface-enhanced Raman scattering (SERS) spectroscopy has been regarded as a promising new technique for the determination of trace heavy metal ions on account of its special fingerprint identification capability, high sensitivity, rapid detection ability, and simple operation. This review summarized in detail the basic principles and strategies for detecting mercury ions, copper ions, arsenic ions, zinc ions, cadmium ions, lead ions, and chromium (VI) ions as well as the current challenges and future trends for the determination of heavy metal ions based on SERS technology.
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