[Liao, Sen; Zhang, Lilei; Li, Shiyu; Yue, Siyao; Wang, Guoping] School of Chemistry and Chemical Engineering, University of South China, Hengyang Hunan Province 421001, P. R. China
通讯机构：
[Sen Liao; Guoping Wang] S
School of Chemistry and Chemical Engineering, University of South China, Hengyang Hunan Province 421001, P. R. China
Si-CQDs with uniform particle size and good water solubility were synthesised using low-cost citric acid (CA) and aminopropyltriethoxysilane (APTEOS) as precursors. Si-CQDs were used as a novel fluorescent probe for sensitive and selective detection of mercury ions (Hg2+) by fluorescence quenching. Following the optimisation of the experimental conditions, the fluorescence intensity of Si-CQDs was found to be linearly dependent on the Hg2+ concentration ranging from 0.02 to 5.0 μM with the limit of detection as low as 0.015 μM. A fluorescence...
