Dual-emissive dye@MOF composite for ratiometric detection and discrimination of two isomers of tetrachlorobenzenediol

Du, Xiaomeng; Zhao, Bo; Yang, Qi; Wang, Jia-Si; Xie, Feng-Yang; Yu, Hongyi; Li, Yue; Ma, Yuxin; Ruan, Wen‐Juan

doi:10.1039/d0nj04058d

Cited by 6 publications

(9 citation statements)

References 28 publications

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“…18,19 More significantly, the combination of MOFs with molecular dyes creates an intriguing platform for investigating host-guest energy transfer difficulties. 20,21 In this study, the methyl blue molecules were encapsulated into CUST-580. As expected, the methyl blue@CUST-580 composites exhibited dual emission properties due to the energy transfer from Cd-MOF to the dye molecule.…”

Section: Introductionmentioning

confidence: 99%

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Methyl blue@CUST-580 composite as a simultaneous fluorescence-enhanced dual-emission platform for the enhanced detection of antibiotics

Xing

Lin

et al. 2022

CrystEngComm

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Section: Introductionmentioning

confidence: 99%

“…18,19 More significantly, the combination of MOFs with molecular dyes creates an intriguing platform for investigating host-guest energy transfer difficulties. 20,21…”

Section: Introductionmentioning

confidence: 99%

Methyl blue@CUST-580 composite as a simultaneous fluorescence-enhanced dual-emission platform for the enhanced detection of antibiotics

Xing

Lin

et al. 2022

CrystEngComm

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“…For example, Zhang et al reported a novel chemical sensor based on a fluorescent metal–organic framework for the selective distinction between and analysis of o-xylene and xylene isomers . Du et al utilized a dye@MOF composite that could discriminate between and ratiometrically detect tetrachlorobenzenediol isomers . Yang et al constructed a fluorescent sensor based on gold nanoclusters for the facile differentiation between nitrophenol isomers .…”

Section: Introductionmentioning

confidence: 99%

“…14 Du et al utilized a dye@MOF composite that could discriminate between and ratiometrically detect tetrachlorobenzenediol isomers. 15 nanoclusters for the facile differentiation between nitrophenol isomers. 16 Zhang and co-workers fabricated a carbon dotdecorated chiral porous organic cage hybrid fluorescent sensor for the rapid differentiation between nitrophenol isomers.…”

Section: ■ Introductionmentioning

confidence: 99%

“…17 Importantly, the fabrication of fluorescent materials is the most important factor in fluorescent sensing. The abovementioned approaches succeeded in preparing fluorescent materials; however, tedious synthesis procedures and extended reaction times (48 h under vigorous stirring, 14 5 days, 15 and 12 h 17 ) were inevitably required. Based on our knowledge, only a few literature reports on fluorescent probes employed in the discrimination between aminophenol isomers are available.…”

Section: ■ Introductionmentioning

confidence: 99%

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Facile Fluorescent Differentiation of Aminophenol Isomers Based on Ce-Doped Carbon Dots

Zhao

Huang

Shi

et al. 2021

ACS Sustainable Chem. Eng.

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Establishing a facile distinction protocol for isomers is still imminently desired. However, the use of a fluorescent probe to differentiate between aminophenol isomers is rarely reported. Herein, we propose a novel fluorescent strategy, based on ceriumdoped carbon dots (Ce-CDs), for the convenient differentiation and sensitive monitoring of aminophenol isomers. The Ce-CDs were synthesized through a facile hydrothermal approach using Dendrobium officinale and Ce(NH 4 ) 2 (NO 3 ) 6 as raw materials; the Ce-CDs possessed sufficient stability and excellent peroxidase-like activity. The synthesized Ce-CDs can catalyze the H 2 O 2 -mediated oxidation of aminophenol isomers resulting in different fluorescence behaviors, which is convenient for distinction of the aminophenol isomers. Notably, the Ce-CD-based fluorescent sensor was highly selective and sensitive for determining o-aminophenol (OAP) and m-aminophenol (MAP) with a low detection limit of 0.033 μM, respectively. The fluorescent method was successfully applied to monitor the presence of MAP and OAP in real water samples, which illustrated its significant potential for application in other environmental assays.

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Multi‐Emission from Single Metal–Organic Frameworks under Single Excitation

Yin

2021

Small

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species under single wavelength excitation. Single-excitation is simple for practical applications, but high requirement is needed as the multi-emission centers are integrated and excited together. Multiemission organic molecules are developed for sensing and lighting applications, [3] but each emissive molecule is well designed with elaborate and complex construction. The simple and general synthesis strategies of multi-emission matrix are urgently demanded in theory and practice.Metal-organic frameworks (MOFs), prepared with metal ions (or metal clusters) and organic ligands, have been widely adopted for gas storage and separation, [4] catalysis, [5] sensing, [4a,6] and bio-imaging. [7] The rational selection and combination of emissive building blocks (organic ligands and metal nodes) provide thousands of possibilities for the design of multi-emission MOFs. [2c,8] Further, the channels or pores of MOFs could act as holder to load guest species, ranging from ions, nanoparticles to dyes to create multi-emission MOFs. Classification of Multi-Emission MOFsEmission occurs when the absorbed energy creates excited state of a species and then comes back to the ground state. [12] Tracing the source, we classify the multi-emission MOFs, according to the excitation centers as illustrated in Scheme 1. Organic aromatic ligands show wide light absorption for potential excitation centers. The single ligand absorbs photon as single absorption site, while its different chemical states gave different emissions, such as the keto and enol states for excited-state intramolecular proton transfer (ESIPT) as excited tautomer. [9,13] In lanthanide MOFs (Ln-MOF), antenna effect realizes the energy transfer from the excited ligand to Ln ions for the multiemission based om Ln ions and ligand. [14] Ascribe to antenna effect, though multi-emission comes from different Ln ions and/or ligands, the energy absorption and excited site is the ligand, which is regarded as single excitation site. However, it is critically required to delicately regulate the exact energy relationship between the ligand and Ln ions to ensure the efficient energy transfer.Multi-emission from multiple excitation sites should own the overlapped excitation wavelength to realize the single wavelength excited emission. However, the different excitation and emission Multi-emission materials have come to prominent attention ascribed to their extended applications other than single-emission ones. General and robust design strategies of a single matrix with multi-emission under single excitation are urgently required. Metal-organic frameworks (MOFs) are porous materials prepared with organic ligands and metal nodes. The variety of metal nodes and ligands makes MOFs with great superiority as multi-emission matrices. Guest species encapsulated into the channels or pores of MOFs are the additional emission sites for multi-emission. In this review, multi-emission MOFs according to the different excitation sites are summarized and classified. The emission mechanisms are dis...

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Dual-emissive dye@MOF composite for ratiometric detection and discrimination of two isomers of tetrachlorobenzenediol

Abstract: A dye@MOF composite was screened out for the ratiometric fluorescent detection and discrimination of the two isomers of tetrachlorobenzenediol.

Cited by 6 publications

References 28 publications

Methyl blue@CUST-580 composite as a simultaneous fluorescence-enhanced dual-emission platform for the enhanced detection of antibiotics

Methyl blue@CUST-580 composite as a simultaneous fluorescence-enhanced dual-emission platform for the enhanced detection of antibiotics

Facile Fluorescent Differentiation of Aminophenol Isomers Based on Ce-Doped Carbon Dots

Multi‐Emission from Single Metal–Organic Frameworks under Single Excitation

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