Trace Cd2+ Ions Detection on the Flower-Like [email protected] Substrate
1
Yunnan Key Laboratory of Opto-electronic Information Technology, Yunnan Normal University, Kunming 650500, China
2
Institute of Physics and Electronic Information, Yunnan Normal University, Kunming 650500, China
*
Author to whom correspondence should be addressed.
Nanomaterials 2020, 10(9), 1664; https://doi.org/10.3390/nano10091664
Received: 31 July 2020
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Revised: 16 August 2020
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Accepted: 18 August 2020
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Published: 25 August 2020
(This article belongs to the Special Issue Nano-Hybrids: Synthesis, Characterization and Applications)
CuO flower-like material (FM) was prepared via the facile hydrothermal method, and Ag nanoparticles were deposited on the CuO FM to obtain [email protected] composite. Rhodamine 6G (R6G) was used as the probe molecule on [email protected] FM substrate to study surface enhanced Raman scattering (SERS). It is discovered that it exhibited an excellent SERS performance with limit of detection of 3.58 × 10−16 M and enhancement factor (EF) of 3.99 × 1010. More importantly, we used it as a SERS substrate to detect cadmium ions and found that its limit of detection (LOD) reaches up to 2.6 × 10−8 M, which is lower than the highest allowable Cd2+ concentration in drinking water set by the World Health Organization (WHO) and Environmental Protection Agency (EPA). Therefore, the proposed composite can be applicable to the detection of Cd2+ in drinking water and in soil.
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MDPI and ACS Style
Cheng, M.; Li, C.; Li, W.; Liu, Y. Trace Cd2+ Ions Detection on the Flower-Like [email protected] Substrate. Nanomaterials 2020, 10, 1664. https://doi.org/10.3390/nano10091664
AMA Style
Cheng M, Li C, Li W, Liu Y. Trace Cd2+ Ions Detection on the Flower-Like [email protected] Substrate. Nanomaterials. 2020; 10(9):1664. https://doi.org/10.3390/nano10091664
Chicago/Turabian StyleCheng, Mingming, Chenyan Li, Weijun Li, and Yingkai Liu. 2020. "Trace Cd2+ Ions Detection on the Flower-Like [email protected] Substrate" Nanomaterials 10, no. 9: 1664. https://doi.org/10.3390/nano10091664
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