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CHEMICAL PHYSICS LETTERS · 2021 · IF 2.328

Microwave-assisted synthesis of Zr-based metal–organic framework (Zr-fum-fcu-MOF) for gas adsorption separation

Hao Liu,Yayun Zhao,Chen Zhou,Bin Mu,Liang Chen

A reliable strategy of Zr-based metal–organic framework (Zr-fum-fcu-MOF) was successfully achieved by microwave-assisted synthesis. Well-shaped and octahedral Zr-fum-fcu-MOF particles were obtained at 100 °C for 1.0 h with 150 equivalents of FA per ZrOCl 2 ·8H 2 O. A clear difference for the adsorption behavior of iso -C 4 H 10 (1.11 mmol/g) and n-C 4 H 10 (3.56 mmol/g) was observed at 25 °C and 1.0 bar. Moreover, 3.16 mmol/g CO 2 uptake was also obtained at 0 °C and 1.0 bar while the adsorption capacity of CH 4 and N 2 is 0.85 mmol/g and 0.21 mmol/g, respectively. This indicates that Zr-fum-fcu-MOF is a promising candidate for CO 2 capture.

CAS / MDL: 64-18-6 13520-92-8

研究领域: 材料科学 · 化学工程

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Advanced Sustainable Systems · 2024 · IF 6.5

Well-Dispersed MOF-5 on The Polyvinylpyrrolidone-Coated Random Lamellas of Clinoptilolites for Adsorptive Separation Performance of CO2, CH4, and N2

Jiawei Zhou,Ming Liu,Shiyang Bai,Jihong Sun,Jia Wei,Ju Wang

The MOF-5@clinoptilolite (MOF@CP) composites are successfully synthesized using polyvinylpyrrolidone (PVP) for adsorption separation of CO 2 /CH 4 , CO 2 /N 2 , and CH 4 /N 2 . The effects of the PVP amounts on the dispersity of MOF-5 on CP random lamellas of the MOF@CPs are evaluated via various characterizations. Meanwhile, their single-component gas adsorption isotherms, breakthrough experiments, and cycling test are measured. The results elucidate that the used PVP amount has a significant influence on the particle size and the uniformity of MOF-5 dispersed on CP random lamellas. The MOF-5-loaded amount in MOF@CP is estimated to be up to 42.52 wt.%. Especially, the surface fractal evolutions indicated the surfaces of MOF@CP became from rough to smooth with the increase of PVP. The CO 2 /CH 4 , CO 2 /N 2 , and CH 4 /N 2 selectivity factors of MOF@CP are higher than that of CP, displaying a better separation performance. Their cycling test revealed that MOF@CPs could be used repetitively, highlighting efficiency for CO 2 and CH 4 separation. Meanwhile, the MOF-5@CP stability under moisture is preliminarily investigated, showing higher moisture resistance stability than MOF-5. Additionally, the grand canonical Monte Carlo simulations demonstrated the adsorption separation mechanism of the prepared MOF@CPs.

研究领域: 材料科学 · 环境科学

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Microwave-assisted synthesis of Zr-based metal–organic framework (Zr-fum-fcu-MOF) for gas adsorption separation

Well-Dispersed MOF-5 on The Polyvinylpyrrolidone-Coated Random Lamellas of Clinoptilolites for Adsorptive Separation Performance of CO2, CH4, and N2