Structural transition from two-dimensional ZIF-L to three-dimensional ZIF-8 nanoparticles in aqueous room temperature synthesis with improved CO2 adsorption

Khan, Imran Ullah; Othman, Mohd Hafiz Dzarfan; Ismail, Ahmad Fauzi; Ismail, Nor Hafiza; Hashim, Haslenda; Rahman, Mukhlis A.; Jilani, Asim

doi:10.1016/j.matchar.2018.01.003

Cited by 58 publications

(27 citation statements)

References 50 publications

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“…As shown in Figure 8 , the diffraction peaks of ZIF-L at the (110), (200), (211), (220), (310) and (222) planes were observed at 2θ values of 7.58°, 10.80°, 12.54°, 14.95°, 16.49° and 17.86°, respectively. This result had an excellent agreement with several reports from previous studies [ 14 , 20 , 28 , 34 , 39 ]. This proves that ZIF-L was successfully synthesized to have a high crystallinity.…”

Section: Resultssupporting

confidence: 93%

“…In the fingerprint region, several transmittance peaks were observed to identify the functional groups of the ZIF-L. The peaks observed at 420.5, 756.0 and 900–1350 cm −1 are associated with the Zn-N stretching of ZIF-L, the out-of-plane bending of the Hmim ring, and the in-plane bending of the Hmim ring, respectively [ 2 , 29 , 34 , 38 , 40 ].…”

Section: Resultsmentioning

confidence: 99%

“…Both ZIF-8 and ZIF-L have been well synthesized in aqueous systems, which are more environmentally friendly. ZIF-L needs a lower molar ratio of ligand to metal compared to ZIF-8, such that the synthesis of ZIF-L is more economical [ 34 ]. In the synthesis of ZIF-L, the molar ratio of ligand to metal plays an important role to produce ZIF-L with excellent characteristics [ 33 , 34 ].…”

Section: Introductionmentioning

confidence: 99%

“…ZIF-L needs a lower molar ratio of ligand to metal compared to ZIF-8, such that the synthesis of ZIF-L is more economical [ 34 ]. In the synthesis of ZIF-L, the molar ratio of ligand to metal plays an important role to produce ZIF-L with excellent characteristics [ 33 , 34 ]. In this study, two other parameters were also involved besides the molar ratio of ligand to metal in order to further optimize the synthesis of ZIF-L, namely the reaction time and temperatures.…”

Section: Introductionmentioning

confidence: 99%

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Facile and Green Synthesis of Starfruit-Like ZIF-L, and Its Optimization Study

et al. 2021

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Due to its excellent characteristics, zeolitic imidazole framework-L (ZIF-L) is widely used in various applications, such as drug delivery, wastewater treatments and energy storage. In the synthesis of ZIF-L, the molar ratio of ligand to metal, the reaction time and the temperature are essential parameters to produce excellent ZIF-L. In this work, ZIF-L was synthesized using a facile and green synthesis method. It was statistically investigated and optimized to obtain the best operating conditions. The optimization was carried out toward the amount of adsorbed crystal violet (CV) dye (q) as the response in the statistics. The optimal ZIF-L was obtained using a molar ratio of ligand to metal of 8.2220 for 97 min at 29 °C, where the q value of the CV adsorption onto this optimal ZIF-L reached 823.02 mg/g. The obtained ZIF-L was characterized using SEM, XRD, FTIR and TGA analyses to ensure its excellent characteristics.

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Section: Resultssupporting

confidence: 93%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Facile and Green Synthesis of Starfruit-Like ZIF-L, and Its Optimization Study

et al. 2021

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“…This indicates ZIF-8 is a better adsorbent for RhB with light. In all three cases, the initial pH remained the same at ∼8.0, the slightly basic pH was a result of the basicity of ZIF-8, 8 , 41 which is favorable for adsorbing cationic dyes like RhB. The concentration of RhB in solution decreased significantly within the first 10 minutes, indicating fast RhB adsorption by ZIF-8 nanocrystals even in dark.…”

Section: Resultsmentioning

confidence: 84%

Rhodamine B degradation by nanosized zeolitic imidazolate framework-8 (ZIF-8)

et al. 2018

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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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Structural transition from two-dimensional ZIF-L to three-dimensional ZIF-8 nanoparticles in aqueous room temperature synthesis with improved CO2 adsorption

Cited by 58 publications

References 50 publications

Facile and Green Synthesis of Starfruit-Like ZIF-L, and Its Optimization Study

Facile and Green Synthesis of Starfruit-Like ZIF-L, and Its Optimization Study

Rhodamine B degradation by nanosized zeolitic imidazolate framework-8 (ZIF-8)

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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