The chemical stability of ZIF-8 in aldehyde under air conditions

Shen, Hongyan; Zhao, Huahua; Benassi, Enrico; Chou, Lingjun; Song, Huanling

doi:10.1039/d3ce00162h

Cited by 5 publications

(2 citation statements)

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“…However, the contribution to this intensity reduction due to an etching effect on the NPs' surface produced by the aldehyde molecules cannot be completely discarded. 28 Fig. 1 (a) Scheme of biomolecule encapsulation into ZIF-8.…”

Section: Biomolecule Encapsulation Within Zif-8 Nanoparticlesmentioning

confidence: 99%

ZIF-8 encapsulation improves the antifungal activity of benzaldehyde and methyl anthranilate in films

Caamaño,

López-Carballo,

Heras-Mozos

et al. 2023

Dalton Trans.

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Section: Biomolecule Encapsulation Within Zif-8 Nanoparticlesmentioning

confidence: 99%

ZIF-8 encapsulation improves the antifungal activity of benzaldehyde and methyl anthranilate in films

Caamaño,

López-Carballo,

Heras-Mozos

et al. 2023

Dalton Trans.

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“…In addition, the abundance of N groups and unsaturated cations on the surface of ZIF-8 makes it easy to generate more active sites. More importantly, ZIF-8 has high chemical and thermal stability due to the strong coordination reaction between anionic ligands and metal ions in neutral and alkaline media [30]. Li et al [31] found that ZIF-8@TiO 2 improved the catalytic degradation ability of tetracycline by TiO 2 .…”

Section: Introductionmentioning

confidence: 99%

Enhancing photocathodic protection with Bi quantum dots and ZIF-8 nanoparticle co-sensitized TiO₂ nanotubes

Zhang,

Zhu,

Yang

et al. 2023

Nanotechnology

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Since hole trapping agents do not persist in the marine environment, it is more practical to test metal protection in 3.5 wt% NaCl solution so that the photocathodic protection (PCP) technique can be effectively applied in the actual marine environment. In this paper, Bi quantum dots (QDs) and ZIF-8 nanoparticles (NPs) were successfully deposited on TiO2 by hydrothermal and impregnation methods. The PCP performances of ZIF-8/Bi/TiO2 composites in the marine environment without hole trapping agents were evaluated, and compared to the performances of pure TiO2, Bi/TiO2 and ZIF-8/TiO2. The electrochemical impedance spectrum (EIS) fitting results demonstrate the Rct value of the ZIF-8/Bi/TiO2 composite coupled with 316 stainless steel (SS) decreased from 7678 Ω·cm2 to 519.3 Ω·cm2 in 3.5 wt% NaCl solution, which is a decrease of about 14.8-fold as compared to TiO2 under the same conditions. This indicates that the deposition of Bi QDs and ZIF-8 NPs on TiO2 nanotubes can improve the electron transport efficiency, which in turn slows down the corrosion rate of 316 SS and significantly improves the PCP performance. This is not only attributed to the Schottky junction and heterojunction structures formed by Bi QDs and ZIF-8 NPs with TiO2, but also due to the SPR effect of Bi QDs and the N-Ti-O bond structure formed between ZIF-8 and TiO2, leading to a lower electron-hole recombination efficiency and a higher electron transfer efficiency.

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Hybrid Strategy for In Situ Shaping of Zeolite‐Imidazolate‐Frameworks into Polymeric Macrocapsule: Toward Practical Applications of Rare Earth Element Recovery

Cho,

Jung,

Choi

et al. 2024

Adv Funct Materials

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The efficient recovery of rare earth elements (REEs) from secondary sources is an urgent global challenge. Although zeolite‐imidazolate‐framework‐8 (ZIF‐8) has unique advantages for REE recovery, its nanopowder form poses a significant obstacle to its practical application. Herein, the study proposes a novel in situ strategy for shaping ZIF‐8 into hierarchical 3D center‐radial channels of a polymeric macrocapsule (PMC) via a hybrid approach. Core–shell‐type ZIF‐8‐PMC hybrids (ZIF‐8@PMC) with the intrinsic physicochemical properties of ZIF‐8 are synthesized by combining counter‐diffusion‐based in situ growth and phase transformation, enabling unprecedented REE recovery of 463.6 and 580 mg g−1 for Nd3+ and Dy3+, respectively, which are superior to that of traditional encapsulating protocols. Moreover, ZIF‐8@PMC exhibits good applicability in the simulated permanent magnet leachate with recovery efficiencies of 92.5% (Nd3+) and 81.8% (Dy3+), after five repetitive cycles because of its protective nanoporous shell layer that prevents the release of in situ‐shaped ZIF‐8 to the exterior and invasion of external particulates into the PMC. Overall, these findings demonstrate the suitability of PMC as an ideal platform for the in situ shaping of ZIF‐8 and the application of the newly proposed protocol as a promising approach to expand the applicability of ZIF‐8 in various fields.

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The chemical stability of ZIF-8 in aldehyde under air conditions

Abstract: The chemical stability of zeolitic imidazolate framework-8 (ZIF-8) in water, acid, base and organic solvent has been widely investigated. Nevertheless, whether it is stable in aldehydes that are the common...

Cited by 5 publications

References 57 publications

ZIF-8 encapsulation improves the antifungal activity of benzaldehyde and methyl anthranilate in films

ZIF-8 encapsulation improves the antifungal activity of benzaldehyde and methyl anthranilate in films

Enhancing photocathodic protection with Bi quantum dots and ZIF-8 nanoparticle co-sensitized TiO₂ nanotubes

Hybrid Strategy for In Situ Shaping of Zeolite‐Imidazolate‐Frameworks into Polymeric Macrocapsule: Toward Practical Applications of Rare Earth Element Recovery

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The chemical stability of ZIF-8 in aldehyde under air conditions

Abstract: The chemical stability of zeolitic imidazolate framework-8 (ZIF-8) in water, acid, base and organic solvent has been widely investigated. Nevertheless, whether it is stable in aldehydes that are the common...

Cited by 5 publications

References 57 publications

ZIF-8 encapsulation improves the antifungal activity of benzaldehyde and methyl anthranilate in films

ZIF-8 encapsulation improves the antifungal activity of benzaldehyde and methyl anthranilate in films

Enhancing photocathodic protection with Bi quantum dots and ZIF-8 nanoparticle co-sensitized TiO2 nanotubes

Hybrid Strategy for In Situ Shaping of Zeolite‐Imidazolate‐Frameworks into Polymeric Macrocapsule: Toward Practical Applications of Rare Earth Element Recovery

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Enhancing photocathodic protection with Bi quantum dots and ZIF-8 nanoparticle co-sensitized TiO₂ nanotubes