Highly fluorescent scandium-tetracarboxylate frameworks: selective detection of nitro-aromatic compounds, sensing mechanism, and their application

doi:10.1039/d0dt03781h

	Highly fluorescent scandium-tetracarboxylate frameworks: selective detection of nitro-aromatic compounds, sensing mechanism, and their application
	Zhan, Deyi 2,3,4; Saeed, Abdul 2,3,5; Li, Zixuan 2,3,5; Wang, Chengming 5; Yu, Zhiwu 4,5,6; Wang, Junfeng 4,5,6; Zhao, Nanjing 1; Xu, Weihong 2,3,5; Liu, Jinhuai 2,3
刊名	DALTON TRANSACTIONS
	2020-12-28
卷号	49
ISSN号	1477-9226
DOI	10.1039/d0dt03781h
通讯作者	Yu, Zhiwu(zhiwuyu@hmfl.ac.cn) ; Wang, Junfeng(junfeng@hmfl.ac.cn) ; Xu, Weihong(whxu@iim.ac.cn)
英文摘要	Recently, exploring new luminescent metal-organic frameworks (LMOFs) to selectively detect nitro-aromatic compounds (NACs) has been a hot topic of research. Simultaneously, it is still a challenging issue to understand the sensing mechanism of luminescent MOFs interacting with NACs at the molecular level. In this work, highly fluorescent Sc-tetracarboxylate frameworks (Sc-EBTC) have been successfully synthesized through a solvothermal method. The as-prepared Sc-EBTC crystals have good thermal stability, chemical stability as well as strong fluorescence (lambda(ex) = 320 nm and lambda(em) = 400 nm), and they can detect various NACs rapidly (as short as 30 s), selectively and efficiently by the "turn-off" fluorescence mechanism. The detection limits of Sc-EBTC toward 2,4-DNP and 4-NP are quantified to be 5.71 ppb and 6.26 ppb, respectively. Furthermore, to better understand the sensing mechanism, we attempt to use solid-state NMR and X-ray photoelectron spectroscopy to vividly characterize the charge transfer caused by the interaction between NAC molecules and the MOF at the molecular level. Additionally, test strips were made successfully for the practical detection of the NACs. This study demonstrates that the MOF constructed from the H4EBTC ligands might be a promising candidate for the detection of trace NACs.
资助项目	National Natural Science Foundation of China[91622101] ; National Natural Science Foundation of China[U1632274] ; National Natural Science Foundation of China[U1832148] ; National Natural Science Foundation of China[U1932218] ; Ministry of Science and Technology of China[2016YFA0400901] ; High Magnetic Field Laboratory of Anhui Province
WOS关键词	METAL-ORGANIC FRAMEWORKS ; NITRO EXPLOSIVES ; LUMINESCENT ; SENSOR ; NMR ; SPECTROSCOPY ; FE(III) ; INDIUM ; SITES
WOS研究方向	Chemistry
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000605665900034
资助机构	National Natural Science Foundation of China ; Ministry of Science and Technology of China ; High Magnetic Field Laboratory of Anhui Province
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/120068]
专题	中国科学院合肥物质科学研究院
通讯作者	Yu, Zhiwu; Wang, Junfeng; Xu, Weihong
作者单位	1.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Environm Opt & Technol, Hefei 230031, Anhui, Peoples R China 2.Chinese Acad Sci, Hefei Inst Phys Sci, State Key Lab Sensor Technol, Hefei 230031, Anhui, Peoples R China 3.Chinese Acad Sci, Hefei Inst Phys Sci, Inst Solid State Phys, Hefei 230031, Anhui, Peoples R China 4.Anhui Univ, Inst Phys Sci & Informat Technol, Hefei 230031, Anhui, Peoples R China 5.Univ Sci & Technol China, Hefei 230031, Anhui, Peoples R China 6.Chinese Acad Sci, Hefei Inst Phys Sci, CAS Key Lab High Magnet Field & Ion Beam Phys Bio, High Magnet Field Lab, Hefei 230031, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Zhan, Deyi,Saeed, Abdul,Li, Zixuan,et al. Highly fluorescent scandium-tetracarboxylate frameworks: selective detection of nitro-aromatic compounds, sensing mechanism, and their application[J]. DALTON TRANSACTIONS,2020,49.
APA	Zhan, Deyi.,Saeed, Abdul.,Li, Zixuan.,Wang, Chengming.,Yu, Zhiwu.,...&Liu, Jinhuai.(2020).Highly fluorescent scandium-tetracarboxylate frameworks: selective detection of nitro-aromatic compounds, sensing mechanism, and their application.DALTON TRANSACTIONS,49.
MLA	Zhan, Deyi,et al."Highly fluorescent scandium-tetracarboxylate frameworks: selective detection of nitro-aromatic compounds, sensing mechanism, and their application".DALTON TRANSACTIONS 49(2020).