Zn-based metal organic framework-covalent organic framework composites for trace lead extraction and fluorescence detection of TNP

Li, Weitao; Hu, Zhengjie; Meng, Jie; Zhang, Xuan; Gao, Wei; Chen, Mingli; Wang, Jianhua

doi:10.1016/j.jhazmat.2020.125021

Cited by 60 publications

(16 citation statements)

References 52 publications

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“…So far, there are increasing interests in recent years to take advantage of advanced materials to adsorb Pb

nanoparticles at deficit concentrations from aqueous resources [ 28 , 29 , 30 , 31 , 32 , 33 ]. Metal-organic frameworks (MOFs) are highly porous 3D-materials made of metal ions linked with organic ligands.…”

Section: Introductionmentioning

confidence: 99%

Highly-Efficient Sulfonated UiO-66(Zr) Optical Fiber for Rapid Detection of Trace Levels of Pb2+

Nazari

Amini

Eden

et al. 2021

IJMS

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Lead detection for biological environments, aqueous resources, and medicinal compounds, rely mainly on either utilizing bulky lab equipment such as ICP-OES or ready-made sensors, which are based on colorimetry with some limitations including selectivity and low interference. Remote, rapid and efficient detection of heavy metals in aqueous solutions at ppm and sub-ppm levels have faced significant challenges that requires novel compounds with such ability. Here, a UiO-66(Zr) metal-organic framework (MOF) functionalized with SO3H group (SO3H-UiO-66(Zr)) is deposited on the end-face of an optical fiber to detect lead cations (Pb2+) in water at 25.2, 43.5 and 64.0 ppm levels. The SO3H-UiO-66(Zr) system provides a Fabry–Perot sensor by which the lead ions are detected rapidly (milliseconds) at 25.2 ppm aqueous solution reflecting in the wavelength shifts in interference spectrum. The proposed removal mechanism is based on the adsorption of [Pb(OH2)6]2+ in water on SO3H-UiO-66(Zr) due to a strong affinity between functionalized MOF and lead. This is the first work that advances a multi-purpose optical fiber-coated functional MOF as an on-site remote chemical sensor for rapid detection of lead cations at extremely low concentrations in an aqueous system.

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“…So far, there are increasing interests in recent years to take advantage of advanced materials to adsorb Pb

Section: Introductionmentioning

confidence: 99%

Highly-Efficient Sulfonated UiO-66(Zr) Optical Fiber for Rapid Detection of Trace Levels of Pb2+

Nazari

Amini

Eden

et al. 2021

IJMS

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“…56,57 For the O 1s, the deconvoluted peaks at 530.7, 531.2 and 532.0 eV could be assigned to O–Co, O–C, and OC groups, respectively. 58,59 The N 1s region of LCU-112 was dissected into three peaks with binding energies of 399.8, 401.2 and 401.7 eV, which should be assigned to N–C, N–H and N–Co. 60 After sensing Pb 2+ , the 4f 7/2 and 4f 5/2 peaks of Pb 4f could be clearly observed at 138.7 and 143.6 eV, respectively.…”

Section: Resultsmentioning

confidence: 99%

A multi-responsive luminescent Co(ii) coordination polymer assembled from amide-functionalized organic units for effective pH and cation sensing

et al. 2023

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“…Similarly, the composite of IRMOF-3 and TpBD has shown an excellent dual functionality of Pb 2+ detection and fluorescence sensing of a nitro-explosive in water samples. 73 …”

Section: Applications Of Mof/cof Hybridsmentioning

confidence: 99%

MOF/COF hybrids as next generation materials for energy and biomedical applications

2022

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Zn-based metal organic framework-covalent organic framework composites for trace lead extraction and fluorescence detection of TNP

Cited by 60 publications

References 52 publications

Highly-Efficient Sulfonated UiO-66(Zr) Optical Fiber for Rapid Detection of Trace Levels of Pb2+

Highly-Efficient Sulfonated UiO-66(Zr) Optical Fiber for Rapid Detection of Trace Levels of Pb2+

A multi-responsive luminescent Co(ii) coordination polymer assembled from amide-functionalized organic units for effective pH and cation sensing

MOF/COF hybrids as next generation materials for energy and biomedical applications

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