A zinc coordination polymer fluorescence sensor for detecting Cu2+ in water

被引：0

作者：

Bai, Yuting ^{[1
]}

Wei, Xiaoyang ^{[2
]}

You, Xuerui ^{[1
]}

Zhang, Zhichao ^{[1
]}

Hang, Meirong ^{[3
]}

Guo, Xiang ^{[4
]}

Zhao, Yiyan ^{[4
]}

机构：

[1] Department of Energy Chemistry and Materials Engineering, Shanxi Institute of Energy, Shanxi, Jinzhong

[2] Institute of Molecular Science, Shanxi University, Shanxi, Taiyuan

[3] Department of Modern Chemical Engineering, Shanxi Engineering Vocational College, Shanxi, Taiyuan

[4] Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Shanxi, Taiyuan

来源：

Huagong Jinzhan/Chemical Industry and Engineering Progress | 2024年 / 43卷 / 10期

关键词：

coordination polymers; environment; fluorescent probes; hydrothermal; preparation; transition metals;

D O I：

10.16085/j.issn.1000-6613.2024-0613

中图分类号：

学科分类号：

摘要：

As a heavy metal, copper ion (Cu2+) plays a key role in human bodies, but excessive Cu2+ can induce various diseases and endanger human health. Therefore, it is important to develop new fluorescent sensors to detect Cu2+ rapidly and sensitively. One-dimensional chain zinc coordination polymer (Zn-CP) was successfully prepared by hydrothermal method using 1,4-bis(3,5-dicarboxy phenoxy) benzene (H4L) as the primary ligand and 1,10-phenanthroline (phen) as the secondary ligand, which can be used as a fluorescence sensor for the efficient detection of Cu2+ in water. The Zn-CP possessed excellent fluorescent properties and can selectively and sensitively detect Cu2+ in aqueous solutions through luminescence quenching. In the range of 0—0.8×10-6mol/L, the Cu2+ concentration showed a good linear relationship with the fluorescence attenuation of the sensor and the detection limit was 1.22×10-8mol/L, which was lower than the limit set by the US Environmental Protection Agency (2.05×10-5mol/L). In addition, the quenching mechanism of Zn-CP in Cu2+ detection may be attributed to the formation of new chemical bonds between the coordination polymers and the Cu2+ . This work provided a new strategy for the construction of coordination polymer-based fluorescence sensors with water-stable systems. © 2024 Chemical Industry Press Co., Ltd.. All rights reserved.

引用

页码：5686 / 5692

页数：6

共 23 条

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