A porphyrin-based metal-organic framework Al-TCPP for highly selective sensing of copper ions with exceptional low limit of detection

doi:10.1016/j.jece.2023.111021

	A porphyrin-based metal-organic framework Al-TCPP for highly selective sensing of copper ions with exceptional low limit of detection
	Liu, Yue 4; Guo, Linfan 4; Chen, Yan 4; Wang, Yaqian 4; Xu, Gengsheng 2,3; Gu, Lina 4; Yu, Zhiwu 1; Yuan, Yupeng 2,3
刊名	JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
	2023-10-01
卷号	11
关键词	Porphyrin Metal-organic frameworks (MOFs) Ratiometric fluorescence Copper ions Mechanism
ISSN号	2213-2929
DOI	10.1016/j.jece.2023.111021
通讯作者	Yu, Zhiwu(zhiwuyu@hmfl.ac.cn) ; Yuan, Yupeng(yupengyuan@ahu.edu.cn)
英文摘要	Sensitive and selective detection of copper ions (Cu2+) using fluorometric methods is of growing significance due to their widespread industrial use, which poses severe environmental and health risks. Here, we reported a porphyrin-based luminescent metal-organic framework (labelling LMOF), Al-TCPP, which exhibits dual emission peaks at 467 and 646 nm upon excitation by a single wavelength. When exposed to Cu2+ ions, the fluorescence peak at 646 nm reduces while the intensity of the 467 nm remains steady. This intriguing property enables the construction of a ratio-metric fluorescence sensor that utilizes an internal standard, significantly enhancing Cu2+ sensing accuracy. Our study establishes a linear relationship (y = 0.0454x + 0.3081) between the fluorescence intensity ratio I467/I646 and the Cu2+ concentration, with a high correlation coefficient R2 = 0.9943. Impressively, the present Al-TCPP achieves a low limit of detection (LOD) of 5.28 nM, one of the lowest reported values for Cu2+ detection. The mechanism underlying this phenomenon involves charge transfer from TCPP ligands in Al-TCPP to Cu2+ ions, as revealed by solid-state NMR and X-ray photoelectron spectroscopy analysis. Utilizing Al-TCPP, we successfully developed test strips for the practical Cu2+ detection. Furthermore, the present Al-TCPP has also effectively applied to determine low Cu2+ content in various samples, including water, tea and serum. This study demonstrates the versatility and practical applicability of present Al-TCPP LMOF for selective detection of Cu2+ ions in diverse environments.
资助项目	National Natural Science Foundation of China[52072001] ; National Natural Science Foundation of China[51872003] ; National Natural Science Foundation of China[42177444] ; National Natural Science Foundation of China[U1932218] ; Anhui Provincial Natural Science Foundation[1908085J21] ; Collaborative Innovation Program of Hefei Science Center, CAS[2021HSC-CIP012] ; Horizontal Cooperation Project of Fuyang Municipal Government - Fuyang Normal University[SXHZ202102]
WOS关键词	FLUORESCENCE DETECTION ; NANOCOMPOSITE ; PHOSPHATE ; SENSOR ; WATER ; CU2+ ; GOLD
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:001080492700001
资助机构	National Natural Science Foundation of China ; Anhui Provincial Natural Science Foundation ; Collaborative Innovation Program of Hefei Science Center, CAS ; Horizontal Cooperation Project of Fuyang Municipal Government - Fuyang Normal University
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/133526]
专题	中国科学院合肥物质科学研究院
通讯作者	Yu, Zhiwu; Yuan, Yupeng
作者单位	1.Chinese Acad Sci, High Magnet Field Lab, Hefei 230031, Anhui, Peoples R China 2.Anhui Univ, Energy Mat & Devices Key Lab Anhui Prov Photoelect, Hefei 230601, Peoples R China 3.Anhui Univ, Sch Mat Sci & Engn, Hefei 230601, Peoples R China 4.Anhui Univ, Sch Chem & Chem Engn, Hefei 230601, Peoples R China
推荐引用方式 GB/T 7714	Liu, Yue,Guo, Linfan,Chen, Yan,et al. A porphyrin-based metal-organic framework Al-TCPP for highly selective sensing of copper ions with exceptional low limit of detection[J]. JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING,2023,11.
APA	Liu, Yue.,Guo, Linfan.,Chen, Yan.,Wang, Yaqian.,Xu, Gengsheng.,...&Yuan, Yupeng.(2023).A porphyrin-based metal-organic framework Al-TCPP for highly selective sensing of copper ions with exceptional low limit of detection.JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING,11.
MLA	Liu, Yue,et al."A porphyrin-based metal-organic framework Al-TCPP for highly selective sensing of copper ions with exceptional low limit of detection".JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 11(2023).