UiO-66 type MOFs with mixed-linkers - 1,4-Benzenedicarboxylate and 1,4-naphthalenedicarboxylate: Effect of the modulator and post-synthetic exchange

Butova, Vera V.; Burachevskaya, Olga A.; Ozhogin, Ilya V.; Бородкин, Г. С.; Starikov, А. G.; Bordiga, Silvia; Damin, Alessandro; Lillerud, Karl Petter; Soldatov, A. V.

doi:10.1016/j.micromeso.2020.110324

Cited by 35 publications

(20 citation statements)

References 46 publications

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“…TG method was usually performed to quantitatively analyze the organic content, further the number of missing linkers could be calculated according to the magnitude of the decomposition weight loss step. 9,17,26,44 As shown in Fig. 6a, the magnitude of the decomposition weight loss was signicantly lower than that of theoretically expected in all samples (weight difference between Zr 6 O 6 (BDC) 6 light grey dot line and the pure ZrO 2 line, 131.4%), indicating they were linkers decient.…”

Section: Resultsmentioning

confidence: 69%

“…The thermal stability of UiO-66 was negatively and severely affected due to the existence of deciency including clustermissing defects and linker-missing defects. 24,26,43 The concentration of cluster-missing defects has been conrmed by the results of XRD patterns. TG method was usually performed to quantitatively analyze the organic content, further the number of missing linkers could be calculated according to the magnitude of the decomposition weight loss step.…”

Section: Resultsmentioning

confidence: 99%

“…Modulators play important roles in the synthesis of MOFs, such as inuencing crystal morphology, RME and so on. 26,33,40,52 The effect of haloid acid on RMEs of UiO-66 synthesized with 0.2 mol L À1 ZrCl 4 was also investigated and the results were presented in Fig. 9 (Table S1 †).…”

Section: Inuence Of Haloid Acid Modulators On the Reaction Mass Effi...mentioning

confidence: 99%

“…In fact, previous studies were carried out in low concentrations of precursors solution that were generally not higher than 0.05 mol L À1 . 8,17,[25][26][27] The effects of high concentration of reactants on the yield and morphology of the prepared materials were seldom reported. 28 To the best of our knowledge, the effects of hydrobromic (HBr) acid modulator in the synthesis of UiO-66 and the applicable of the modulating mechanism of modulators at high concentration have not been reported.…”

Section: Introductionmentioning

confidence: 99%

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An efficient modulated synthesis of zirconium metal–organic framework UiO-66

Chen

et al. 2022

RSC Adv.

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Section: Resultsmentioning

confidence: 69%

Section: Resultsmentioning

confidence: 99%

Section: Inuence Of Haloid Acid Modulators On the Reaction Mass Effi...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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An efficient modulated synthesis of zirconium metal–organic framework UiO-66

Chen

et al. 2022

RSC Adv.

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“…Ref. [18]. The morphology analyses were described utilizing transmission electron microscopy (TEM) (Tecnai G2 Spirit Bio TWIN) operating at 120 kV.…”

Section: Experimental Procedures 21 Sample Preparationmentioning

confidence: 99%

Thermal Decomposition and Kinetic Analysis of a Mil-88a Metal-organic Framework

Moustafa

Aboraia

Elmasry

et al. 2021

Preprint

Self Cite

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The thermal decomposition of the MIL-88A metal-organic frameworks (MOFs) is studied, for the first time, at various heating rates under air and Nitrogen. The precursors of a MIL-88A material revealed water evaporation and remaining solvent molecules in the framework structure at low-temperatures range while at the high-temperatures range, the organic skeleton collapse; in the meantime, Fe0.94O and the shell of graphitized carbon are formed. Thermogravimetric analysis (TGA) curves of MIL-88A moved slowly to the high-temperatures region with increasing heating rates. Additionally, Differential Scanning Calorimetry (DSC) curves of MIL-88A provided a change in the peak intensity, indicating the difference in the sample weight loss. X-ray diffraction (XRD) pattern and transmission electron microscopy (TEM) of the as-prepared sample confirmed the existence of a single hexagonal MIL-88A without any impurities of other phases. However, XRD exhibited two phases Fe0.94O and F0, after annealing. TEM of the annealed sample also asserted the creation of a carbon layer on the surface. The activation energy and kinetic parameter of the MIL-88A material offered higher values as the exothermic peak increased. Interestingly, the thermal decomposition of the MIL-88A material is effective in investigating the temperature effect on the pyrolysis process that can benefit in energy storage applications.

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Poly(vinylidene fluoride) ultrafiltration membranes tailored with zirconium‐based MOF‐801 for water treatment applications

Rameesha,

Rana,

Nagendran

2024

Polymer International

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Highly hydrophilic and antifouling poly(vinylidene fluoride) (PVDF) ultrafiltration membranes are developed with excellent permeation using a zirconium‐based metal–organic framework (MOF‐801). MOF‐801 is synthesized by a solvothermal method using zirconium(IV) oxychloride octahydrate (ZrOCl2⋅8H2O) and fumaric acid. The chemical functionality of MOF‐801 is studied by Fourier transform infrared (FTIR) spectroscopy and X‐ray diffraction (XRD) whereas surface morphology and elemental composition are probed by scanning electron microscopy (SEM)/energy‐dispersive X‐ray analysis (EDX). The PVDF/MOF‐801 membranes are characterized in terms of FTIR, XRD, FESEM/EDX and atomic force microscopy. The performance of the hybrid PVDF/MOF‐801 membranes in terms of pure water flux and antifouling ability is found to be improved compared with bare PVDF membranes. The wettability of the membranes is measured by water contact angle and found to be 76.7° for bare PVDF membrane, which decreases upon the addition of MOF‐801 to 55.1° due to the increase in surface hydrophilicity. A notable increase in roughness of 226.29 nm and a porosity of 67.91% is observed for the addition of 2 wt% MOF‐801 in PVDF membrane matrix. The flux recovery ratio of the hybrid membrane is increased from 66.4% to 89.6% and from 68.3% to 85.2% for bovine serum albumin (BSA) and humic acid (HA) separation, respectively. In addition, the reversible and irreversible fouling performance during the rejection of BSA (93%) and HA (88%) indicates the enhanced antifouling property of the PVDF/MOF‐801 membranes. A zone of inhibition test evidences the outstanding antibiofouling activity of the PVDF/MOF‐801 membranes against E. coli and S. aureus. Overall results demonstrated the suitability of hybrid PVDF/MOF‐801 membranes for water and wastewater treatment. © 2023 Society of Industrial Chemistry.

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UiO-66 type MOFs with mixed-linkers - 1,4-Benzenedicarboxylate and 1,4-naphthalenedicarboxylate: Effect of the modulator and post-synthetic exchange

Cited by 35 publications

References 46 publications

An efficient modulated synthesis of zirconium metal–organic framework UiO-66

An efficient modulated synthesis of zirconium metal–organic framework UiO-66

Thermal Decomposition and Kinetic Analysis of a Mil-88a Metal-organic Framework

Poly(vinylidene fluoride) ultrafiltration membranes tailored with zirconium‐based MOF‐801 for water treatment applications

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