All in one porous material: exceptional sorption and selective sensing of hexavalent chromium by using a Zr<sup>4+</sup> MOF

Rapti, Sofia; Sarma, Debajit; Diamantis, Stavros A.; Skliri, Euaggelia; Armatas, Gerasimos S.; Tsipis, Athanassios C.; Hassan, Youssef S.; Alkordi, Mohamed H.; Malliakas, Christos D.; Kanatzidis, Mercouri G.; Lazarides, Theodore; Plakatouras, John C.; Manos, Manolis J.

doi:10.1039/c7ta04496h

Cited by 163 publications

(117 citation statements)

References 61 publications

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“…The PXRD pattern shows the structural integrity of compound 1 after the removal process (Figure S9). Based on these, we believe that the efficient anion exchange between Cr 2 O 7 2− and NO 3 − ions in channels of compound 1 has played a key role in the process of dichromate removal …”

Section: Resultsmentioning

confidence: 89%

“…The result shows that the maximum uptake capacity of 1 for Cr 2 O 7 2− ions reaches 222.5 mg g −1 . Such a value is higher than most of known Cr 2 O 7 2− adsorption amounts for MOF materials based on ion‐exchange (Table S3) . In addition, Langmuir and Freundlich isotherms have also been applied to evaluate their maximum adsorption capacity.…”

Section: Resultsmentioning

confidence: 98%

“…Recently, Manos et al. reported a 3D cationic MOF, H 16 [Zr 6 O 16 (H 2 PATP) 4 ]Cl 8 ⋅ x H 2 O (H 2 PATP=2‐((pyridin‐1‐ium‐2‐ylmethyl) ammonium terephthalate), which showed rapid and high Cr 2 O 7 2− adsorption capacity up to 402.3 mg g −1 within 1 min . Hence, 3D cationic MOFs with superior properties in adsorption capacity and faster kinetics are highly desirable for Cr 2 O 7 2− removal.…”

Section: Introductionmentioning

confidence: 99%

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A Zwitterionic Ligand‐Based Cationic Metal‐Organic Framework for Rapidly Selective Dye Capture and Highly Efficient Cr₂O₇²⁻ Removal

Zhang

Liu

Sun

et al. 2018

Chemistry A European J

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A cationic metal-organic framework (MOF), [Cu L(H O) ]⋅(NO ) ⋅5.5 H O (1) has been successfully synthesized from a zwitterionic ligand 1,1'-bis(3,5-dicarboxyphenyl)-4,4'-bipyridinium chlorine ([H L]Cl ). The framework of compound 1 contains classical {Cu (O C) } paddlewheels, and possesses typical nbo-type topology and two types of channels with sizes of 5.0 and 15.54 Å. Benefitting from the 3D cationic framework and high pore volume, compound 1 shows interesting selective adsorption ability for anionic dyes. Such material can be successfully employed in a chromatographic column to efficiently separate mixed dyes of Fluorescein Sodium and Methylene Blue. In addition, compound 1 exhibits excellent Cr O removal capacity with maximum adsorption amount of 222.5 mg g , which ranks among the higher Cr O adsorption amounts of MOF materials ever reported, based on ion-exchange. The strategy to construct cationic MOFs based on zwitterionic ligands will promote the development of functional porous materials for the capture and removal of anionic pollutant species from contaminated liquid.

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Section: Resultsmentioning

confidence: 89%

Section: Resultsmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Zwitterionic Ligand‐Based Cationic Metal‐Organic Framework for Rapidly Selective Dye Capture and Highly Efficient Cr₂O₇²⁻ Removal

Zhang

Liu

Sun

et al. 2018

Chemistry A European J

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“…To selective adsorption of hexavalent chromium, a new MOF H 16 [Zr 6 O 16 (H 2 PATP) 4 ]Cl 8 (H 2 PATP=2‐((pyridine‐1‐ium‐2‐ylmethyl)ammonio)terephthalate), denoted as MOR‐2 (metal‐organic resin‐2) was synthesized successfully . MOR‐2 captured 194 mg Cr VI /g within 1 min through particularly strong binding with dichromate and could be recycled several cycles with slight loss (<20%) of capacity.…”

Section: Adsorption Of One Metal Ionmentioning

confidence: 99%

Recent Progress in the Removal of Heavy Metal Ions from Water Using Metal‐Organic Frameworks

2020

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The efficient adsorption of heavy metal ions from wastewater has become a serious challenge from both environmental and biological viewpoints. Recently, porous metal‐organic frameworks (MOFs), with metallic clusters and organic linkers, have been developed as promising structures in the capture of different toxic and hazardous substances, including heavy metal ions, because of their unique features. Here there is a collection for recent progress in the field of water remediation from the variable‐valent metals in polluted water and the corresponding MOFs which are able to remove these pollutant agents from water. Meanwhile, effective factors in the absorption of metal ions are discussed. MOFs are considered to be a promising candidate for metal ions removal from wastewater.

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“…In recent years, metal−organic frameworks (MOFs) have been extensively used to fabricate multifunctional luminescent probes for sensing of the target anions, cations or small organic molecule, because their interesting fluorescence properties can be regulated by changing the metal ion/cluster units and organic ligands . Recently, MOFs have also been studied for the sensing of toxic species such as Cr 2 O 7 2− and CrO 4 2− anions from aqueous solution For example, Wang et al.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Structures and Recognition Properties of Two Cadmium(II) Phosphonates for Highly Selective Sensing of Cr₂O₇²⁻ and CrO₄²⁻ Anions

Cai

Sun

et al. 2018

ChemistrySelect

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Two cadmium (II) phosphonates, [Cd(MPBP)(2, 2′−bipy)(H2O)]⋅H2O (1) and [Cd(H2BPDP)(2,2′−bipy)2(H2O)]⋅H2O (2) [H2MPBP=4,4−Bis(monoethylphosphonomethyl)biphenyl, H4BPDP=biphenyl−4,4′−diylbis(methylene)diphosphonic acid, 2,2′−bipy=2,2′−bipyridine], had been successfully synthesized under hydrothermal conditions with different reaction temperatures by using H2MPBP as the phosphonate ligand and 2,2′−bipyridine as the second organic ligand. The compound 1 exhibited a 3D supramolecular structure, in which {CdN2O4} polyhedra and {CPO3} tetrahedra were interconnected by MPBP anions to form a 1D double chain via corner–sharing. Neighboring chains were linked into a 2D supramolecular sheet in the ac–plane by hydrogen bonding interactions, which were further assembled through π−π stacking interactions to form a 3D supramolecular structure. Compound 2 was assembled through π−π stacking and hydrogen bonding interactions to form a 1D supramolecular structure. Furthermore, both compounds exhibited remarkable luminescent properties, and could be applied as the high selective and sensitive luminescent sensors in the sensing of Cr2O72− and CrO42− anions through the luminescence quenching effect with a low–detection limit of 3.5 × 10−7 M and 4.6 × 10−7 M (for 1) and 6.1 × 10−7 M and 4.3 × 10−7 M (for 2), respectively. Additionally, the probable mechanisms for the quenching behaviour for the two compounds had also been investigated in detail.

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All in one porous material: exceptional sorption and selective sensing of hexavalent chromium by using a Zr⁴⁺ MOF

Abstract: A new microporous Zr4+ MOF combines both extraordinary sorption capability and exceptional luminescence sensing properties for Cr(vi) in aqueous media.

Cited by 163 publications

References 61 publications

A Zwitterionic Ligand‐Based Cationic Metal‐Organic Framework for Rapidly Selective Dye Capture and Highly Efficient Cr₂O₇²⁻ Removal

A Zwitterionic Ligand‐Based Cationic Metal‐Organic Framework for Rapidly Selective Dye Capture and Highly Efficient Cr₂O₇²⁻ Removal

Recent Progress in the Removal of Heavy Metal Ions from Water Using Metal‐Organic Frameworks

Synthesis, Structures and Recognition Properties of Two Cadmium(II) Phosphonates for Highly Selective Sensing of Cr₂O₇²⁻ and CrO₄²⁻ Anions

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All in one porous material: exceptional sorption and selective sensing of hexavalent chromium by using a Zr4+ MOF

Abstract: A new microporous Zr4+ MOF combines both extraordinary sorption capability and exceptional luminescence sensing properties for Cr(vi) in aqueous media.

Cited by 163 publications

References 61 publications

A Zwitterionic Ligand‐Based Cationic Metal‐Organic Framework for Rapidly Selective Dye Capture and Highly Efficient Cr2O72− Removal

A Zwitterionic Ligand‐Based Cationic Metal‐Organic Framework for Rapidly Selective Dye Capture and Highly Efficient Cr2O72− Removal

Recent Progress in the Removal of Heavy Metal Ions from Water Using Metal‐Organic Frameworks

Synthesis, Structures and Recognition Properties of Two Cadmium(II) Phosphonates for Highly Selective Sensing of Cr2O72− and CrO42− Anions

Contact Info

Product

Resources

About

All in one porous material: exceptional sorption and selective sensing of hexavalent chromium by using a Zr⁴⁺ MOF

A Zwitterionic Ligand‐Based Cationic Metal‐Organic Framework for Rapidly Selective Dye Capture and Highly Efficient Cr₂O₇²⁻ Removal

A Zwitterionic Ligand‐Based Cationic Metal‐Organic Framework for Rapidly Selective Dye Capture and Highly Efficient Cr₂O₇²⁻ Removal

Synthesis, Structures and Recognition Properties of Two Cadmium(II) Phosphonates for Highly Selective Sensing of Cr₂O₇²⁻ and CrO₄²⁻ Anions