Ionothermal synthesis and proton-conductive properties of NH<sub>2</sub>-MIL-53 MOF nanomaterials

Liu, Jia; Zou, Xiaoqin; Liu, Chuanfang; Cai, Kun; Zhao, Nian; Zheng, Weitao; Zhu, Guangshan

doi:10.1039/c5ce02141c

Cited by 50 publications

(19 citation statements)

References 38 publications

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“…The XRD patterns of PTA/NH 2 ‐MOF(Al) indicate that the immobilization of PTA has affected the phase of NH 2 ‐MIL‐101(Al) (Figs (d) and (e)). The peaks at 8.8°, 10.3°, 15° and 17.6° indicate that the pattern corresponds to the reported NH 2 ‐MIL‐53(Al) . The reason is that NH 2 ‐MIL‐101(Al) is transformed to NH 2 ‐MIL‐53(Al) during the loading process, when it is immersed in HCl aqueous solution for 10 h (Fig.…”

Section: Resultssupporting

confidence: 64%

Immobilization of phosphotungstic acid in an amino‐containing metal–organic framework for oxidative desulfurization

Zhang

Liu

et al. 2016

Applied Organom Chemis

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A composite material has been successfully synthesized using an amino‐containing metal–organic framework (NH2‐MOF) and phosphotungstic acid (PTA). This composite was characterized using X‐ray diffraction, high‐resolution transmission electron microscopy, nitrogen adsorption–desorption measurements, Fourier transform infrared spectroscopy and X‐ray fluorescence. Characterization results confirmed the immobilization and good distribution of PTA in the NH2‐MOF. The PTA/NH2‐MOF was subsequently applied in the oxidative desulfurization of dibenzothiophene (DBT) with H2O2 as the oxidant in n‐octane under atmospheric conditions. Under optimal reaction conditions, the oxidative desulfurization conversion of DBT reached 100%, and there was no significant decrease of the catalytic activity after four recycles. Kinetic experiments were also performed for the reaction at various temperatures, which indicated that oxidative reaction rates followed pseudo first‐order kinetics, and the apparent activation energy for the desulfurization reaction was 34.1 kJ mol−1. The results indicated that this material exhibited excellent catalytic performance for oxidative desulfurization of DBT. Copyright © 2016 John Wiley & Sons, Ltd.

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Section: Resultssupporting

confidence: 64%

Immobilization of phosphotungstic acid in an amino‐containing metal–organic framework for oxidative desulfurization

Zhang

Liu

et al. 2016

Applied Organom Chemis

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“…Liu et al. have obtained ellipsoid‐like crystals of NH 2 ‐MIL‐53 MOF with a particle size of around 30 nm using 1‐ethyl‐3‐methyl‐imidazolium ionic liquid . Sang et al.…”

Section: Synthesis Of Mof Nanocrystalsmentioning

confidence: 99%

Metal‐Organic Framework Nanocrystals

Barros¹,

Neto

Frós

et al. 2018

ChemistrySelect

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Metal‐organic frameworks (MOFs) comprise a broad class of crystalline materials defined as porous networks consisting of metal ions or clusters interconnected through polytopic organic linkers. Due to their intriguing structural and topological characteristics which usually offer high surface areas and tunable pore size, MOFs are excellent candidates for a great variety of applications, such as gas adsorption and separation, catalysis, magnetism, photoluminescence and many others. Although attractive, traditional bulk crystalline MOF materials do not always fulfill the specific needs for some applications, such as smart membranes, thin films devices, and drug delivery. Moreover, nanocrystals display properties that differ from the bulk material due to the high surface‐to‐volume ratio and quantum size effects. Thus, MOF nanocrystals will possibly present new and exciting properties or at least enhance the already known ones. With this view, it is necessary to develop efficient strategies towards the synthesis of MOF nanocrystals. This review provides general concepts of MOF nanocrystals and a critical summary of synthetic approaches with the focus on recent progress in the fabrication of MOF nanocrystals.

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“…MIL‐53‐NH 2 (Al) consists of unlimited chains of octahedral (M = Al 3+ ) interconnected by 1,4‐benzenedicarboxylic acid (1,4‐BDC) and −OH groups with glassy walls mostly consisting of aromatic rings. The diameter of the 3D microporous frame is about 0.85 nm (Liu et al, ). MIL‐53‐NH 2 (Al) is frequently used for the extraction of different drugs and biomarkers from water and wastewater (An et al, ; Yusuf, Badjah‐Hadj‐Ahmed, Aqel, & ALOthman, ).…”

Section: Introductionmentioning

confidence: 99%

Determination of urinary methylhippuric acids using MIL‐53‐NH₂ (Al) metal–organic framework in microextraction by packed sorbent followed by HPLC–UV analysis

Pirmohammadi

Bahrami

Nematollahi

et al. 2019

Biomedical Chromatography

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For the analysis of methylhippuric acids (MHAs) in human urine samples, in this study, a new method based on the metal–organic framework (MOF) of MIL‐53‐NH2 (Al) in microextraction by packed sorbent (MEPS) was developed. The synthesis of MIL‐53‐NH2 (Al) was characterized by Fourier transform infrared spectra, field emission‐scanning electron microscopy and X‐ray diffraction. Response surface methodology was used to investigate the influences of several parameters including type and volume of elution, type of conditional solvent, sample volume and extraction cycle on MEPS efficiency. The results showed good recoveries (>94%) and excellent extraction efficiencies (>96%) at three different concentrations of 50, 500 and 1500 μg ml−1 (as low, mid and high concentrations, respectively) of MHA isomers. Calibration curves of MHAs were linear over the concentration range of 1–1500 μg ml−1, with high correlation coefficients (r ≥ 0.998). The reproducibility of the proposed MIL‐53‐MEPS for determination of three isomers of MHA was found to be in the range of 3.5–11.1%. After optimization of the proposed technique, it was used to analyze MHAs in urine samples of workers exposed to xylenes in a petrochemical plant in Asalouyah, Iran. The results indicated that the MOF–MEPS method was selective, sensitive, rapid and efficient for the extraction of urinary MHAs. The technique is also environmentally friendly and inexpensive, and the MOF sorbent is reusable.

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Ionothermal synthesis and proton-conductive properties of NH₂-MIL-53 MOF nanomaterials

Abstract: Highly stable and proton-conductive NH2-MIL-53 metal–organic framework nanomaterials have been successfully synthesized in an ionothermal system.

Cited by 50 publications

References 38 publications

Immobilization of phosphotungstic acid in an amino‐containing metal–organic framework for oxidative desulfurization

Immobilization of phosphotungstic acid in an amino‐containing metal–organic framework for oxidative desulfurization

Metal‐Organic Framework Nanocrystals

Determination of urinary methylhippuric acids using MIL‐53‐NH₂ (Al) metal–organic framework in microextraction by packed sorbent followed by HPLC–UV analysis

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Ionothermal synthesis and proton-conductive properties of NH2-MIL-53 MOF nanomaterials

Abstract: Highly stable and proton-conductive NH2-MIL-53 metal–organic framework nanomaterials have been successfully synthesized in an ionothermal system.

Cited by 50 publications

References 38 publications

Immobilization of phosphotungstic acid in an amino‐containing metal–organic framework for oxidative desulfurization

Immobilization of phosphotungstic acid in an amino‐containing metal–organic framework for oxidative desulfurization

Metal‐Organic Framework Nanocrystals

Determination of urinary methylhippuric acids using MIL‐53‐NH2 (Al) metal–organic framework in microextraction by packed sorbent followed by HPLC–UV analysis

Contact Info

Product

Resources

About

Ionothermal synthesis and proton-conductive properties of NH₂-MIL-53 MOF nanomaterials

Determination of urinary methylhippuric acids using MIL‐53‐NH₂ (Al) metal–organic framework in microextraction by packed sorbent followed by HPLC–UV analysis