A highly selective and fast-response fluorescent probe based on Cd-MOF for the visual detection of Al3+ ion and quantitative detection of Fe3+ ion

Lv, Rui; Chen, Zhihengyu; Fu, Xin; Yang, Boyuan; Li, Hui; Su, Jian; Gu, Wen; Liu, Xin

doi:10.1016/j.jssc.2017.12.033

Cited by 108 publications

(34 citation statements)

References 44 publications

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“…Figure a shows that the emission intensity was improved upon the gradual addition of Al 3+ ions; therefore, the S-V equation can also be employed to evaluate the enhancement efficiency of Al 3+ against 1 . The K SV value of 1 for sensing Al 3+ ions is 2.49 × 10 4 M –1 (Figure b), and the LOD could reach 1.13 × 10 –7 mol/L based on 3δ/slope, lower than the reported luminescent sensors for Al 3+ ions (Figure S25 and Table ), − showing the highly sensitive sensing ability to Al 3+ ions for 1 . Furthermore, the restored and recycled tested samples by washing then several times with 0.01 M HCl and DMF solutions were again employed to determine the detection ability by comparing the fluorescence intensity with the initial intensity in order to evaluate its recyclability (Figure S26).…”

Section: Resultsmentioning

confidence: 83%

A Photoluminescent Cd(II) Coordination Polymer with Potential Active Sites Exhibiting Multiresponsive Fluorescence Sensing for Trace Amounts of NACs and Fe³⁺ and Al³⁺ Ions

et al. 2021

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The elaborately designed π-electron-rich fluorescent ligand 1,4-bis(1-carboxymethylene-4-imidazolyl)benzene (H 2 L), possessing bifunctional groups including the carboxylate groups (building units) and 4-imidazoyl groups (N-donor potential active sites) has been employed to construct fluorescent coordination polymers. A luminescent sensor, namely [Cd(L)(phen) 2 ]•5H 2 O (1), was obtained, which has a one-dimensional structure. The fluorescent material shows a blue emission maximum at 457 nm with a luminescence lifetime of 488 ns and a quantum yield (QY) of 4.56%. Significantly, 1 serves as a promising multiresponsive luminescent sensor to detect trace nitroaromatic compounds (NACs) with the limits of detection (LOD) of 7.21 × 10 −8 , 1.85 × 10 −5 , and 1.15 × 10 −5 mol/L for 2nitrophenol (2-NP), 3-nitrophenol (3-NP), and 4-nitrophenol (4-NP), respectively. Furthermore, CP 1 exhibits fluorescent turn-off and turn-on sensing behavior for Fe 3+ and Al 3+ metal ions with trace amounts of 1.05 × 10 −7 and 1.13 × 10 −7 mol/L, respectively. Experimental methods and theoretical calculations were employed to elucidate the sensing mechanism in detail.

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Section: Resultsmentioning

confidence: 83%

A Photoluminescent Cd(II) Coordination Polymer with Potential Active Sites Exhibiting Multiresponsive Fluorescence Sensing for Trace Amounts of NACs and Fe³⁺ and Al³⁺ Ions

et al. 2021

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“…Iron ions are an important component of hemoglobin and myoglobin but are also related to transferrin. In addition, the level of iron ions content has a profound impact on industrial and agricultural production, as well as daily life [1][2][3][4][5]. Therefore, the detection of iron ions is of great significance for environmental detection and life science.…”

Section: Introductionmentioning

confidence: 99%

“…For instance, Lv. R. et al [5] synthesized a new luminescent Cd-MOF, which can detect Al 3+ and Fe 3+ by means of fluorescence quenching. The detection limit reached 0.56 µM for Al 3+ and 0.3 µM for Fe 3+ , respectively.…”

Section: Introductionmentioning

confidence: 99%

Construction of a Luminescent Cadmium-Based Metal–Organic Framework for Highly Selective Discrimination of Ferric Ions

et al. 2021

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Fluorescent metal–organic frameworks (MOFs) are ideal materials for sensors because of their adjustable pore size and functional groups, which provide them with favorable metal ion selective recognition. In this paper, a new cadmium-based MOF was synthesized using Cd(NO3)2·4H2O and 3,3′,5,5′-biphenyltetracarboxylic acid by solvothermal method. CdBPTC owned three types of channels with dimensions of approximately 8.4 × 8.3 Å, 6.0 × 5.2 Å, 9.7 × 8.4 Å along a, b, and c axis, respectively. This MOF has high selectivity to ferric ions and shows excellent anti-inference ability toward many other cations. The results indicate that the fluorescence quenching efficiency of CdBPTC is close to 100% when the concentration of Fe3+ reaches 1.0 × 10−3 mol·L−1. Moreover, the luminescent intensity at 427 nm presents a linear relationship at a concentration range of 2.0 × 10−4~7.0 × 10−4 mol·L−1, which can be quantitatively expressed by the linear Stern–Volmer equation I0/I = 8489 [Fe3+] − 0.1400, which is comparable to the previously reported better-performing materials. Competitive energy absorption and ion exchange may be responsible for the variation in fluorescence intensity of CdBPTC in different Fe3+ concentrations.

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“…It is probable that this new approach will provide very efficient and selective sensors that are not expensive and time-consuming. The effort to achieve such sensors needs the demolition of a framework and the creation of a secondary product, with special functions like variations in fluorescence and/or color, due to specific interactions between the host and host molecule. − To date, various techniques for the identification and removal of metal ions have been developed, including membrane processes, chemical precipitation, electrochemical methods, calorimetry, and fluorometric detection. Nonetheless, colorimetric detection is the most attractive and simple of all of these techniques. − MOFs have significant potential for the detection of metal ions owing to special interactions with the guest molecules within the channels. − Hinterholzinger et al (2013) published the first paper on a sacrificial MOF that can detect metal ions .…”

Section: Introductionmentioning

confidence: 99%

Highly Sensitive Colorimetric Naked-Eye Detection of Hg^II Using a Sacrificial Metal–Organic Framework

et al. 2021

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This study has developed a specific, easy, and novel approach to designing a sacrificial metal–organic framework (MOF) that can detect and measure the amount of Hg2+ in aqueous and nonaqueous solutions using the naked eye. The functionalized [Zn(oba)(RL3)0.5] n ·1.5DMF (TMU-59) provides the ability of simple visual assessment or colorimetric readout without sophisticated analytical equipment. Because of the special interaction with Hg2+, degradation of the structure of this unique MOF causes the solution to change color from colorless to a pink that is easily recognizable to the naked eye. The presence of a methyl group plays a major role in naked-eye detection by a qualitative sensor. Furthermore, this qualitative sensor data for the production of a simple, instant, and portable red, green, and blue (RGB)-based quantitative sensor were used to determine the concentration of Hg2+ in different specimens. As a turn-off fluorescence sensor, this unique structure is also capable of detecting Hg2+ at very low concentrations (the limit of detection is 0.16 ppb). To the best of our knowledge, TMU-59 is the first MOF-based naked-eye sensor that can successfully and specifically display the presence of Hg2+ through a major color change.

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A highly selective and fast-response fluorescent probe based on Cd-MOF for the visual detection of Al3+ ion and quantitative detection of Fe3+ ion

Cited by 108 publications

References 44 publications

A Photoluminescent Cd(II) Coordination Polymer with Potential Active Sites Exhibiting Multiresponsive Fluorescence Sensing for Trace Amounts of NACs and Fe³⁺ and Al³⁺ Ions

A Photoluminescent Cd(II) Coordination Polymer with Potential Active Sites Exhibiting Multiresponsive Fluorescence Sensing for Trace Amounts of NACs and Fe³⁺ and Al³⁺ Ions

Construction of a Luminescent Cadmium-Based Metal–Organic Framework for Highly Selective Discrimination of Ferric Ions

Highly Sensitive Colorimetric Naked-Eye Detection of Hg^II Using a Sacrificial Metal–Organic Framework

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A highly selective and fast-response fluorescent probe based on Cd-MOF for the visual detection of Al3+ ion and quantitative detection of Fe3+ ion

Cited by 108 publications

References 44 publications

A Photoluminescent Cd(II) Coordination Polymer with Potential Active Sites Exhibiting Multiresponsive Fluorescence Sensing for Trace Amounts of NACs and Fe3+ and Al3+ Ions

A Photoluminescent Cd(II) Coordination Polymer with Potential Active Sites Exhibiting Multiresponsive Fluorescence Sensing for Trace Amounts of NACs and Fe3+ and Al3+ Ions

Construction of a Luminescent Cadmium-Based Metal–Organic Framework for Highly Selective Discrimination of Ferric Ions

Highly Sensitive Colorimetric Naked-Eye Detection of HgII Using a Sacrificial Metal–Organic Framework

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A Photoluminescent Cd(II) Coordination Polymer with Potential Active Sites Exhibiting Multiresponsive Fluorescence Sensing for Trace Amounts of NACs and Fe³⁺ and Al³⁺ Ions

A Photoluminescent Cd(II) Coordination Polymer with Potential Active Sites Exhibiting Multiresponsive Fluorescence Sensing for Trace Amounts of NACs and Fe³⁺ and Al³⁺ Ions

Highly Sensitive Colorimetric Naked-Eye Detection of Hg^II Using a Sacrificial Metal–Organic Framework