Polymer nanodots of graphitic carbon nitride as effective fluorescent probes for the detection of Fe3+ and Cu2+ ions
Polymer nanodots of graphitic carbon nitride as effective fluorescent probes for the detection of Fe3+ and Cu2+ ions
复制标题
石墨氮化碳聚合物纳米点作为检测 Fe3 和 Cu2 离子的有效荧光探针
DOI：
10.1039/c3nr06744k
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发表时间：
2014
期刊：
影响因子：
6.7
通讯作者：
Hu Wenping
中科院分区：
文献类型：
--
作者：
Zhang Shouwei;Li Jiaxing;Zeng Meiyi;Xu Jinzhang;Wang Xiangke;Hu Wenping
首次开发了一种简单、绿色的方法，通过水热法制备荧光石墨氮化碳（F-g-C3 N4）。所产生的F-g-C3 N4点具有蓝色发射和高量子产率，并被用作一个非常有效的荧光探针，用于无标记的选择性和灵敏的检测Cu 2+和Fe 3+离子;检测限分别低至0.5 nM和1.0 nM。用六偏磷酸钠（SHPP）作为Fe ~（3+）的掩蔽剂，在Fe ~（3+）存在的情况下，只检测Cu ~（2+）。对真实的水样中的Cu ~（2+）和Fe ~（3+）离子也进行了测定。这种优异的荧光性能使得基于F-g-C3 N4点的探针对于高灵敏度检测真实的水中的Cu 2+和Fe 3+离子具有吸引力。
A simple and green route was developed for the first time to produce fluorescent graphitic carbon nitride (F-g-C3N4) by hydrothermal treatment of bulk g-C3N4. The produced F-g-C3N4 dots have blue emission and a high quantum yield, and were applied as a very effective fluorescent probe for label-free selective and sensitive detection of Cu2+ and Fe3+ ions; the limits of detection were as low as 0.5 nM and 1.0 nM, respectively. By using sodium hexametaphosphate (SHPP) as a masking agent of Fe3+, Cu2+ was exclusively detected in the presence of Fe3+ ions. Cu2+ and Fe3+ ions in real water samples were also detected successfully. This exceptional fluorescent performance makes the probes based on F-g-C3N4 dots attractive for highly sensitive detection of Cu2+ and Fe3+ ions in real water.