Journal
RSC ADVANCES
Volume 3, Issue 44, Pages 21691-21696Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ra43452d
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Funding
- NSFC [20905021, 21075070, 21175118, 21275130, 21375066, 21275131]
- Foundation of the Ministry of Education of China for Returned Scholars
- preferentially financing projects of scientific and technological activities of overseas students in Zhejiang province [(2011)-443]
- Zhejiang Normal University
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Herein, a simple, green, and low-cost way was developed in the synthesis of fluorescent nitrogen-doped carbon nanoparticles (FNCPs) with nitrogen content of 6.88%, using one-pot hydrothermal treatment of strawberry juice. The as-prepared FNCPs exhibited a maximum emission at 427 nm with a quantum yield of 6.3%, which could be specifically quenched by Hg2+. This phenomenon was used to develop a fluorescent method for facile detection of Hg2+ with a linear range from 10 nM to 50 mu M and a detection limit of 3 nM (S/N = 3), and further extended to measure environmental water samples with satisfactory recovery. This study provides a green strategy in the synthesis of FNCPs to detect Hg2+ with good performance.
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