Roles of defects and linker exchange in phosphate adsorption on UiO-66 type metal organic frameworks: Influence of phosphate concentration

Wang, Liangjie; Wen, Xianghua; Li, Juan; Zeng, Ping; Song, Yonghui; Yu, Hua‐Zhong

doi:10.1016/j.cej.2020.126681

Cited by 80 publications

(35 citation statements)

References 70 publications

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“…The broad peak at 3103-2546 cm À1 are due to the vibration of carboxyl group. 39,40 The sample UiO-66-free exhibited very weak vibration peaks at 1506 cm À1 (vibration of C]C in aromatic ring) and 480 cm À1 (vibration of Zr-O m3 -OH bond in the Zr 6 cluster) indicating high defectivity and poor crystallinity of the material. 17 For samples prepared with haloid acid modulator, however, there was no evident vibration peak at 3103-2546 cm À1 .…”

Section: Resultsmentioning

confidence: 99%

“…It can be attributed to the facts that excessive amount of modulator resulted in samples with high concentration of defectivity which would undoubtedly lead to the instability of samples. 40 Similarly, BET surface area presented a signicant increasement from 410 m 2 g À1 of the modulator-free sample to 1647 m 2 g À1 of UiO-66-1HCl sample. More importantly, the trend in porosity (now quantitatively described by BET surface area, Fig.…”

Section: Morphology-dependent Porosity Of Uio-66mentioning

confidence: 92%

“…The decrease of BET may be attributed to their instability caused by poor crystalline structure. 40 The pore size distributions (PSD) were constructed by NLDFT method for all samples and were presented in Fig. 8.…”

Section: Morphology-dependent Porosity Of Uio-66mentioning

confidence: 99%

“…The appearance of the 15.9 Å pores was associated with the removal of clusters in an octahedral cavity formation. 40,46,[48][49][50] When HBr-ZrCl 4 molar ratio was larger than 6, the heterogeneity of pores further increased. A new mode of pores positioned at around 6 Å appeared which theoretically the triangular window connecting the regular octahedral cavity (about 11 Å) and the regular tetrahedral cavity (about 8 Å).…”

Section: Morphology-dependent Porosity Of Uio-66mentioning

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%

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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: 99%

Section: Morphology-dependent Porosity Of Uio-66mentioning

confidence: 92%

Section: Morphology-dependent Porosity Of Uio-66mentioning

confidence: 99%

Section: Morphology-dependent Porosity Of Uio-66mentioning

confidence: 99%

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

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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Defect Dominated Hierarchical Ti‐Metal‐Organic Frameworks via a Linker Competitive Coordination Strategy for Toluene Removal

Jin

Chun

et al. 2021

Adv Funct Materials

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Constructing a hierarchically porous structure in metal–organic frameworks (MOFs) can improve the accessibility of active sites and facilitate mass diffusion to enhance their adsorption and catalytic efficiency. Here, a novel linker competitive coordination strategy based on the electronegativity difference of two kinds of organic linkers is proposed to tailor the porous structure of Ti‐MOF (MIL‐125). A series of Ti‐MOFs with continuously tunable hierarchical porosity is obtained by simply adjusting the molar ratios of two organic linkers. The demonstration of toluene removal shows that the competitive coordination strategy not only contributes to wide pore size distribution to enhance the adsorption performance of toluene, but also endows good charge separation ability to facilitate photocatalytic performance. Finally, the toluene removal efficiency of optimal Ti‐MOF with mixed organic linkers of 1:1 molar ratio is 2.14 times and 1.88 times of the pristine MIL‐125 and MIL‐125(NH2), respectively. This strategy opens a new prospect to optimize Ti‐MOF properties for various heterogeneous catalysis applications.

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Defect‐Engineered Metal–Organic Frameworks as Nanocarriers for Pharmacotherapy: Insights into Intracellular Dynamics at The Single Particle Level

Huang,

Dreisler,

Kæstel‐Hansen

et al. 2024

Advanced Materials

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Nanoscale Metal‐Organic Frameworks (nanoMOFs) are widely implemented in a host of assays involving drug delivery, biosensing catalysis, and bioimaging. However, the cell pathways and cell fate remain poorly understood. Here, we have synthesized a new fluorescent nanoMOF integrating ATTO 655 into surface defects of colloidal UiO‐66, allowing us to track the spatiotemporal localization of Single nanoMOF in live cells. DFT reveals the stronger binding of ATTO 655 to the Zr6 cluster nodes compared with phosphate and Alendronate Sodium. Parallelized tracking of the spatiotemporal localization of thousands of nanoMOFs and analysis using machine learning platforms revealed whether nanoMOFs remain outside as well as their cellular internalization pathways. To quantitatively assess their colocalization with endo/lysosomal compartments, we developed a colocalization proxy approach relying on the nanoMOF detection of particles in one channel to the signal in the corresponding endo/lysosomal compartments channel, considering signal versus local background intensity ratio and signal‐to‐noise ratio. This strategy mitigates colocalization value inflation from high or low signal expression in endo/lysosomal compartments. The results accurately measure the nanoMOFs’ colocalization from early to late endosomes and lysosomes and emphasize the importance of understanding their intracellular dynamics based on single‐particle tracking for optimal and safe drug delivery.This article is protected by copyright. All rights reserved

show abstract

Roles of defects and linker exchange in phosphate adsorption on UiO-66 type metal organic frameworks: Influence of phosphate concentration

Cited by 80 publications

References 70 publications

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

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

Defect Dominated Hierarchical Ti‐Metal‐Organic Frameworks via a Linker Competitive Coordination Strategy for Toluene Removal

Defect‐Engineered Metal–Organic Frameworks as Nanocarriers for Pharmacotherapy: Insights into Intracellular Dynamics at The Single Particle Level

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