A Water‐Stable Cationic Metal–Organic Framework as a Dual Adsorbent of Oxoanion Pollutants

Desai, Aamod V.; Manna, Biplab; Karmakar, Avishek; Sahu, Amit; Ghosh, Sujit K.

doi:10.1002/anie.201600185

Cited by 314 publications

(158 citation statements)

References 82 publications

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“…MOFs or PAFs with appropriate functional groups have shown excellent ion‐exchange capacity, kinetics and selectivity for a range of industrially important ions. For example, Ghosh and co‐workers recently reported rapid removal of environmentally toxic oxyanions, such as dichromate, using a water stable cationic MOF by an ion‐exchange mechanism . Dichromate removal by a cationic MOF was also reported by Liu and co‐workers that works by means of a single‐crystal to a single crystal transformation process .…”

Section: Methodsmentioning

confidence: 95%

Removal of Pertechnetate‐Related Oxyanions from Solution Using Functionalized Hierarchical Porous Frameworks

Banerjee

Elsaidi

Aguila

et al. 2016

Chemistry A European J

112

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Efficient and cost-effective removal of radioactive pertechnetate anions from nuclear waste is a key challenge to mitigate long-term nuclear waste storage issues. Traditional materials such as resins and layered double hydroxides (LDHs) were evaluated for their pertechnetate or perrhenate (the non-radioactive surrogate) removal capacity, but there is room for improvement in terms of capacity, selectivity and kinetics. A series of functionalized hierarchical porous frameworks were evaluated for their perrhenate removal capacity in the presence of other competing anions.

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Section: Methodsmentioning

confidence: 95%

Removal of Pertechnetate‐Related Oxyanions from Solution Using Functionalized Hierarchical Porous Frameworks

Banerjee

Elsaidi

Aguila

et al. 2016

Chemistry A European J

112

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“…In this context, the smart synthesis of mixed ligand CPs using polycarboxylates and N,N′‐donor spacers have been established as a significant strategy in past few years . Many attempts have made with linear rigid linkers like, 4,4′‐bipyridine, pyrazine, 4,4′‐azobis(pyridine), 1,2‐di(4‐pyridyl)ethane, 1,2‐di(4‐pyridyl)ethylene, 1,3‐bis(4‐pyridyl)propane in combination with several polycarboxylates to synthesize diverse CPs ranging from 1D to 3D networks .…”

Section: Introductionmentioning

confidence: 99%

Five Diverse Multidimensional Polycarboxylate–Based Mixed–Ligand Coordination Polymers with Different N,N′–Donor Ligands: Synthesis, Characterization and Their Sorption Study

et al. 2018

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Five mixed ligand coordination polymers (CPs) explicitly {[Cu2(btp)(2,5‐pyrdc)2H2O].4H2O}n (1), {[Cu(bte)0.5(2,5‐pyrbdc)H2O].1.5H2O}n (2), {[Cu(bte)(1, 2,4,5‐btc)0.5(H2O)].3H2O}n (3), {[Co(4‐bpdh)(1, 2,4,5‐btc)0.5(H2O)(MeOH)]}n (4), and {[Co(4‐bpdb)1.5(1,2,4,5‐btc)(H2O)4].4H2O(MeOH)}n (5) have been synthesized by using two polycarboxylates 2,5‐pyridinedicarboxylate (2,5‐pyrdc2–), 1,2,4,5‐benzenetetracarboxylate (1,2,4,5‐btc4–) and four differently polar N–donor ligands. Here, two different transition metals Cu(II) and Co(II) have been used and slow diffusion technique has been followed for crystallization process at room temperature. Single crystal X‐ray diffraction analysis, powder X‐ray diffraction (PXRD), infrared spectroscopy (IR), elemental analysis and thermo gravimetric analysis (TGA) techniques have been used to characterize all the five compounds 1–5. Compound 1 exhibits a 2D bilayer; fabricated by the N,N‘–donor 1,3‐bis(1,2,4‐triazol‐1‐yl)propane (btp) and 2,5‐pyrdc2– ligands with the Cu(II) metal center; whereas compound 2 shows a wavy 2D sheet structure by only variation of N–donor ligand to 1,2‐bis(1,2,4‐triazol‐1‐yl)ethane (bte). Compound 3 features a 3D MOF built by 2D metal carboxylate sheet of Cu(II) and 1,2,4,5‐btc4– pillared by bte spacer. Compound 5 displays two fold interpenetrated 3D framework containing two distorted octahedral Co(II) metal centers; formed by the 1,2,4,5‐btc4– and 1,4‐bis‐(4‐pyridyl)‐2,3‐diaza‐1,3‐butadiene (4‐bpdb) ligands whereas compound 4 attains a 1D chain only by variation of N–donor linker to 2,5‐bis‐(4‐pyridyl)‐3,4‐diaza‐2,4‐hexadiene (4‐bpdh). For the compounds 1–5, different sorption study has been carried out. The dehydrated framework of compound 5 shows selective CO2 adsorption at 195 K over N2 (at 77 K) which has been explained in terms of the strong interaction of CO2 molecules with polar moiety of the dehydrated framework of 5. Compound 1 and 2 exhibit both CO2 and N2 adsorptions but the presence of non‐polar, long chain ligands in the frameworks decreases the extent of sorption for both the cases; whereas 3 and 4 only give suitable result for N2 sorption.

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“…Hence, the fast, convenient, visual and quantitative detection of trace aqueous Cr(VI) anions is critical in the field of environmental and industrial conditions. To efficiently detect Cr(VI) anions, investigators have developed many sensing technologies, such as atomic absorption spectrometry, inductively coupled plasma emission spectrometry (ICP−AES) and X−ray fluorescence, et al, among which fluorescent probe approaches have attracted much attention due to their high sensitivity, good selectivity, simple operation, and visualization, making them excellent alternatives for the detection of these heavy metal ions …”

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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A Water‐Stable Cationic Metal–Organic Framework as a Dual Adsorbent of Oxoanion Pollutants

Cited by 314 publications

References 82 publications

Removal of Pertechnetate‐Related Oxyanions from Solution Using Functionalized Hierarchical Porous Frameworks

Removal of Pertechnetate‐Related Oxyanions from Solution Using Functionalized Hierarchical Porous Frameworks

Five Diverse Multidimensional Polycarboxylate–Based Mixed–Ligand Coordination Polymers with Different N,N′–Donor Ligands: Synthesis, Characterization and Their Sorption Study

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

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A Water‐Stable Cationic Metal–Organic Framework as a Dual Adsorbent of Oxoanion Pollutants

Cited by 314 publications

References 82 publications

Removal of Pertechnetate‐Related Oxyanions from Solution Using Functionalized Hierarchical Porous Frameworks

Removal of Pertechnetate‐Related Oxyanions from Solution Using Functionalized Hierarchical Porous Frameworks

Five Diverse Multidimensional Polycarboxylate–Based Mixed–Ligand Coordination Polymers with Different N,N′–Donor Ligands: Synthesis, Characterization and Their Sorption Study

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

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Product

Resources

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