1. Synthesis of Carbon dots from Biomass Chenpi for the Detection of Hg2+.
- Author
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Jun Xiang, Xiaoqing Chen, Qi Liu, Huihua Jing, Tongqiang Chen, Wanli Tang, and Wenyang Xu
- Subjects
BIOMASS ,CARBON ,HYDROTHERMAL carbonization ,FLUORESCENCE ,BLEACHING (Chemistry) - Abstract
Biomass-derived carbon dots (C-dots) are considered a very important carbon material in metal ion detection of their small environmental impact, simple preparation process, and relatively low cost. A green approach for synthesizing biomass-derived C-dots from Chenpi using a hydrothermal method without further processing is proposed in the present study. The as-synthesized C-dots show excellent fluorescence properties, superior resistance to UV irradiation photobleaching, and high photostability in salt-containing solutions. The C-dots were used in the form of label-free fluorescent probes for sensitively detecting Hg
2+ selectively. The outcome relationship behaved linearly and was established based on a given range between 10-300 nM concentration, with a detection limit of 7.0 nM. This green strategy obtains a high C-dot quantum yield of 10.8% and satisfactory results in detecting Hg2+ in actual water samples. [ABSTRACT FROM AUTHOR]- Published
- 2023
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