An ultrastable Zr-MOF for fast capture and highly luminescence detection of Cr2O72− simultaneously in an aqueous phase

Sun, Xiaodong; Yao, Shuo; Yu, Chengyang; Li, Guanghua; Liu, Chunming; Huo, Qisheng; Liu, Yunling

doi:10.1039/c8ta01060a

Cited by 126 publications

(76 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As illustrated in Figure d, the S‐V curve linearly increases below 132 μM for MDZ and then deviates from the linearity at high concentration of MDZ. The linear correlation is indicative of static quenching, and the non‐linear portion is attributed to self‐absorption and/or energy‐transfer process . Fitting the plot of I 0 / I vs. [MDZ] to S‐V equation affords K SV = 1.59 × 10 4 m –1 and correlation coefficient R 2 = 0.9907 below 132 μM.…”

Section: Resultsmentioning

confidence: 99%

A Highly Stable (4, 8)‐Connected Tb‐MOF Exhibiting Efficiently Luminescent Sensing towards Nitroimidazole Antibiotics

Yang

Wang

et al. 2019

Zeitschrift anorg allge chemie

View full text Add to dashboard Cite

A robust 4,8-connected Tb-based metal-organic framework (Tb-MOF) with paddle wheel-shaped {Tb 2 (COO) 4 } subunits extended by C 3 -symmetric 3,3Ј,3ЈЈ-[1,3,5-benzenetriyltris(carbonylimino)]trisbenzoate connector was hydrothermally synthesized, showing highly environmental stability, good dispersion and intense green emission in water system. Resulting critically from the well suppressed absorption towards the excitation energy, the Tb-MOF exhibits rapid and efficient 23 fluorescent response towards nitroimidazole antibiotics with strong quenching constants and low detection limits of 1.59 ϫ 10 4 m -1 and 2.4 μM for metronidazole as well as 1.62 ϫ 10 4 m -1 and 2.9 μM for dimetridazole. Moreover, the sensitive and selective identification of the Tb-MOF has strong anti-interference and excellent regeneration ability, which endows the promising applications of the Tb-MOF as fluorescent sensing materials.

show abstract

Section: Resultsmentioning

confidence: 99%

A Highly Stable (4, 8)‐Connected Tb‐MOF Exhibiting Efficiently Luminescent Sensing towards Nitroimidazole Antibiotics

Yang

Wang

et al. 2019

Zeitschrift anorg allge chemie

View full text Add to dashboard Cite

show abstract

“…In addition, there are other Zr-MOFs that can also be obtained using different V-shaped linkers. [188,189] Yin and co-workers reported a Zr-MOF based on a perylenediimide linker, Zr-PDI. [190] The Zr-cluster coordinated with eight P-2COOH linkers and four acetic acid ligands (P-2COOH = N,N′-di-(4-benzoic acid)-1,2,6,7-tetrachloroperylene-3,4,9,10-tetracarboxylic acid diimide).…”

Section: Zr-mofs Based On Ditopic Linkersmentioning

confidence: 99%

Metal–Organic Frameworks Based on Group 3 and 4 Metals

et al. 2020

View full text Add to dashboard Cite

Metal-organic frameworks (MOFs), a class of porous crystalline framework materials, are linked by strong bonds between inorganic and organic building blocks. [1-3] In the past two decades, MOFs have rapidly grown as a star material due to their exceptional performance in areas such as storage, separation and catalysis. [4] The outstanding performance of MOFs in applications benefits from their intrinsically porous structures and highly tunable pore environment. [5-7] The creation and modification of pore space with optimized size, functionality and diversity can be precisely tuned at the molecular level by rationally designing building blocks and synthetic procedures. [8,9] The diversity of MOFs can be enriched by expanding the library of organic linkers with varying lengths, geometries, and functional groups. [10] Additionally, very diverse metal cations are applied to MOF synthesis, ranging from monovalent (Ag + , Cu + , etc.), divalent (Mg 2+ , Fe 2+ , Co 2+ , Ni 2+ , etc.), trivalent (Al 3+ , Sc 3+ , V 3+ , Cr 3+ , etc.), to tetravalent (Ti 4+ , Zr 4+ , Hf 4+ , etc.) cations. [11] In this review, we mainly focus on MOFs with group 3 and 4 metals, including Y, lanthanides (Ln, from La to Lu), actinides (An, from Ac to Lr), Ti, and Zr (Figure 1). Group 3 metal cations are generally found in the oxidation state of +3 in the MOF structures, while group 4 metal cations mainly exist in the oxidation state of +4, leading to the formation of much stronger coordination bonds with carboxylates. [12] Therefore, group 4 metal-based MOFs (M IV-MOFs) generally have enhanced stability compared with MOFs constructed from metals of group 3 and other groups. This series of MOFs stands out because the involved metals can generally coordinate with carboxylates to form frameworks with strong coordination bonds, according to the Pearson's hard/soft acid/base principle, where group 3 and 4 metal cations are regarded as hard acids while carboxylate ligands are hard bases. [11] One remarkable feature of MOFs with group 3 and 4 metals is that they generally can form phases containing M 6 O 8 (M = Y, Ln, An, Zr and Hf) clusters, regardless of their atomic numbers, charges and radius. This series of M 6-based MOFs is best represented by UiO series such as UiO-66 with fcu topology. [13] Under different synthetic conditions, UiO-66(M, M = An, Zr and Hf) constructed from [M 6 (μ 3-O) 4 (μ 3-OH) 4 ] clusters and linear carboxylates can be obtained, while UiO-66(M, M = Y, Ln) is assembled from Metal-organic frameworks (MOFs) based on group 3 and 4 metals are considered as the most promising MOFs for varying practical applications including water adsorption, carbon conversion, and biomedical applications. The relatively strong coordination bonds and versatile coordination modes within these MOFs endow the framework with high chemical stability, diverse structures and topologies, and interesting properties and functions. Herein, the significant progress made on this series of MOFs since 2018 is summarized and an update on the current status an...

show abstract

“…[14][15][16] Worryingly,i nv iew of the weak strength of coordination bonds, ap ortion of MOF structures will disaggregate or collapse when used in practical sensing. [18,19] According to the theory of hard and soft acids and bases,t he strength of coordination effects be-tweenZ r IV ions and polycarboxylic acid is comparable to that of covalent bonds, ensuring the stabilities of Zr-MOFs under various sensing conditions. Thus, at this point, zirconium-based MOFs (Zr-MOFs)w ith high chemicala nd mechanical stability become promising candidatest os erve as luminescent sensors.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, at this point, zirconium-based MOFs (Zr-MOFs)w ith high chemicala nd mechanical stability become promising candidatest os erve as luminescent sensors. [18,19] According to the theory of hard and soft acids and bases,t he strength of coordination effects be-tweenZ r IV ions and polycarboxylic acid is comparable to that of covalent bonds, ensuring the stabilities of Zr-MOFs under various sensing conditions. For ap hotoluminescence property,Z r-MOFs usually present as ingle emission peak because their luminescence is mainly based on the functional ligands or ligand-to-metal chargetransfer-related processes.…”

Section: Introductionmentioning

confidence: 99%

RhB‐Embedded Zirconium–Naphthalene‐Based Metal–Organic Framework Composite as a Luminescent Self‐Calibrating Platform for the Selective Detection of Inorganic Ions

Zhang

Wei

Meng

et al. 2020

Chemistry A European J

View full text Add to dashboard Cite

As eries of dye@MOF composites were synthesized through in situ encapsulationo fl uminous rhodamine B( RhB) molecules into ab lue-emissive zirconium-naphthalene-based metal-organic framework (Zr-MOF). The fabricated RhB@Zr-MOFc omposites exhibit tunable dual-emissive characteristics due to the process of resonante nergy transfer from Zr-MOF to RhB. Notably,o ne of the RhB@Zr-MOF composites (R@D3)e xhibited aw eak emissiona t4 20 nm and as tronge mission at 607 nm, for which the two emissions possess large distinctionsi nl ocation and intensity and can be referenced with each other in sensing analytes. By using relative fluorescence intensity insteado ft heir absolute fluorescencei ntensitya st he detection signals, R@D3s erved as ab uilt-in self-calibrated platformt os electively detect Fe 3 + and Cr 2 O 7 2À ions in water.C ompared with the pristine Zr-MOF,t he R@D3 composite showse nhanced sensing selectivity to Fe 3 + and higher sensibility to Cr 2 O 7 2À .T hiss tudy displays the advantageso fc ombining organic dyes with robust Zr-MOFsi nt uning fluorescencea nd sensing performance.

show abstract

An ultrastable Zr-MOF for fast capture and highly luminescence detection of Cr₂O₇²⁻ simultaneously in an aqueous phase

Abstract: A porous Zr-MOFs (JLU-MOF50) with exceptional stabilities has been synthesized. As a dual functional material, JLU-MOF50 displays not only a high trapping capacity and an adsorption rate, but also effective detecting performance for Cr2O72− in the aqueous phase.

Cited by 126 publications

References 52 publications

A Highly Stable (4, 8)‐Connected Tb‐MOF Exhibiting Efficiently Luminescent Sensing towards Nitroimidazole Antibiotics

A Highly Stable (4, 8)‐Connected Tb‐MOF Exhibiting Efficiently Luminescent Sensing towards Nitroimidazole Antibiotics

Metal–Organic Frameworks Based on Group 3 and 4 Metals

RhB‐Embedded Zirconium–Naphthalene‐Based Metal–Organic Framework Composite as a Luminescent Self‐Calibrating Platform for the Selective Detection of Inorganic Ions

Contact Info

Product

Resources

About