Synthesis and gas permselectivity of CuBTC–GO–PVDF mixed matrix membranes
| Autor: | Ahmad Tavassoli, Elahe Ahmadi Feijani, Hossein Mahdavi |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
chemistry.chemical_classification
Graphene Oxide 02 engineering and technology General Chemistry Polymer 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Catalysis 0104 chemical sciences law.invention chemistry.chemical_compound Membrane chemistry Chemical engineering law Materials Chemistry Barrer Metal-organic framework Gas separation 0210 nano-technology Dispersion (chemistry) |
| Zdroj: | New Journal of Chemistry. 42:12013-12023 |
| ISSN: | 1369-9261 1144-0546 |
| DOI: | 10.1039/c8nj00796a |
| Popis: | A CuBTC (copper(II) benzene-1,3,5-tricarboxylate) metal organic framework (MOF) and graphene oxide (GO) nanosheets were introduced into a semi-crystalline PVDF to produce mixed matrix membranes (MMMs) to promote gas separation performance. CuBTC/GO co-existence in PVDF exhibited positive effects on thermal, mechanical, and permselectivity properties of MMMs. While MMMs owed their higher permeabilities to porous CuBTC particles, GO nanosheets were mostly responsible for induction of remarkable selectivity into the PVDF matrix. The best gas separation was reported for a MMM with 9.5/0.5 wt% of CuBTC/GO. In this regard, He and CO2 permeabilities of 10.066 and 3.316 barrer were obtained accompanied by more than 100% increases in He/CH4, He/N2, and CO2/CH4 gas selectivities. Homogenous dispersion of fillers, filler morphologies, and well polymer/filler interactions are responsible for such interesting behavior. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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