Rapid adsorption and removal of sulfur mustard with zeolitic imidazolate frameworks ZIF-8 and ZIF-67

Son, Yerim; Ryu, Sam Gon; Kim, Hyunsung

doi:10.1016/j.micromeso.2019.109819

Cited by 47 publications

(56 citation statements)

References 37 publications

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“…This could be related to the increase of membranes surface porosity due to the increased exchange rate of solvent and non-solvent in the presence of ZIF-8 nanoparticles. 41 As reported by Wenzel in 1936, 42 the increase surface roughness would amplify the wettability caused by surface chemistry. The surface roughness of MMM affects the permeability and contamination resistance.…”

Section: Resultsmentioning

confidence: 85%

High performance polyvinylidene fluoride (PVDF) mixed matrix membrane (MMM) doped by various zeolite imidazolate frameworks

Liu

Chen

Mao

et al. 2020

High Performance Polymers

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Zeolitic imidazolate framework (ZIF-8) in three particle sizes (40, 70 and 100 nm) was prepared through both solvothermal and hydrothermal methods and employed to decorate polyvinylidene fluoride (PVDF). The finger-like macro-voids, sponge-like poly-porous morphology and surface roughness of prepared membranes were characterized by SEM and AFM microscopy. The FTIR spectrum and XPS analysis bear out the chemical component. ZIF-8 has the characteristics of higher porosity and appropriate pore size, which is a condition for improving the permeability and pollution resistance of the modified membrane. Results indicated that different ZIF-8s have different enhancement effects on PVDF MMM. 100 nm ZIF-8 membrane possessed pure water flux (PWF) of 350 L m−2h−1, which was 10 times more than the bare membrane (30 L m−2h−1), and OVA flux recovery ration (FRR%) is 98%. 40 nm ZIF-8 membrane owned BSA FRR% of 98.4%. The 70 nm ZIF-8 showed the best mechanical properties. The dynamic contact angles of UP-Z70 ranged from 104.5° to 62.5° within 180 s. Furthermore, pore size distribution, molecular weight cut-off (MWCO) and porosity were also researched to evaluate the MMM. The dislodge of Reactive Black KN-B, Reactive Red 3BS and Reactive Brilliant Blue KN-R dyes by MMM were studied under different dye concentrations and transmembrane pressures. The membrane can provide selective separation methods for dyes and Reactive Brilliant Blue KN-R up to 99%. Overall, the permeability, hydrophilicy, anti-fouling performance and wastewater treatment of modified membranes were regulated by the ZIF-8 in a steerable blending reaction modification process.

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Section: Resultsmentioning

confidence: 85%

High performance polyvinylidene fluoride (PVDF) mixed matrix membrane (MMM) doped by various zeolite imidazolate frameworks

Liu

Chen

Mao

et al. 2020

High Performance Polymers

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show abstract

“…Zeolitic imidazolate framework-8 (ZIF-8) is a kind of ZIF that is assembled by coordinating zinc (Zn) as the metal-core and 2-methylimidazole (Hmim) as the organic ligand in the 3D structure. Previous studies have been carried out to synthesise ZIFs, especially ZIF-8, in which various surface areas, pore volumes and pore sizes were obtained [ 1 , 25 , 26 ]. ZIF-8 is called a zeolitic MOF due to its similarity to the tetrahedral framework of zeolites [ 15 ].…”

Section: Introductionmentioning

confidence: 99%

“…ZIF-8 is called a zeolitic MOF due to its similarity to the tetrahedral framework of zeolites [ 15 ]. This allows the ZIF-8 to have a rhombic dodecahedron crystal shape [ 1 , 3 , 25 , 27 ]. However, it did not rule out the formation of other crystal shapes, such as hexagonal [ 15 , 28 ], truncated cubic [ 26 ], spherical [ 29 ], rod-like, and cylindrical crystal shapes [ 20 ].…”

Section: Introductionmentioning

confidence: 99%

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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“…In this situation, there are two types of material that would be needed: wipes active for CWA degradation to clean surfaces and devices for removing persistent nerve agents from land and soil. Recent work has focused on using zeolitic imidazolate frameworks (ZIFs), a subclass of MOF with zeolitic topology, for the removal of blister agent simulant CEES and actual blister agent HD 121 . The specific ZIFs chosen (for example, ZIF-8 and ZIF-67) showed remarkable uptake and were subsequently integrated onto cotton wipes.…”

Section: Chemical Toxins and Their Remediationmentioning

confidence: 99%

Chemical targets to deactivate biological and chemical toxins using surfaces and fabrics

et al. 2021

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Rapid adsorption and removal of sulfur mustard with zeolitic imidazolate frameworks ZIF-8 and ZIF-67

Cited by 47 publications

References 37 publications

High performance polyvinylidene fluoride (PVDF) mixed matrix membrane (MMM) doped by various zeolite imidazolate frameworks

High performance polyvinylidene fluoride (PVDF) mixed matrix membrane (MMM) doped by various zeolite imidazolate frameworks

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

Chemical targets to deactivate biological and chemical toxins using surfaces and fabrics

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