Gram-Scale Synthesis of Graphitic Carbon Nitride Quantum Dots with Ultraviolet Photoluminescence for Fe3+ Ion Detection
Xuemei Lu(Guangxi Normal University), Haijun Qin(Guangxi Normal University), Jiuzhang Cai(Guangxi Normal University), Yuhang Cui(Guangxi Normal University), Lixin Liao(Guangxi Normal University), Fengzhen Lv(Guangxi Normal University), Changming Zhu(Guangxi Normal University), Liguang Wang(Guangxi Normal University), Jun Liu(Guangxi Normal University), Lizhen Long(Guangxi Normal University), Wenjie Kong(Guangxi Normal University), Fuchi Liu(Guangxi Normal University)
Cited by 18Open Access
Abstract
A method for gram-scale synthesis of graphitic carbon nitride quantum dots (g-C3N4QDs) was developed. The weight of the g-C3N4QDs was up to 1.32 g in each run with a yield of 66 wt%, and the purity was 99.96 wt%. The results showed that g-C3N4QDs exhibit a stable and strong ultraviolet photoluminescence at a wavelength of 365 nm. More interestingly, the g-C3N4QDs can be used as a high-efficiency, sensitive, and selective fluorescent probe to detect Fe3+ with a detection limit of 0.259 μM.
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