Synthesis and gas permselectivity of CuBTC–GO–PVDF mixed matrix membranes†,New Journal of Chemistry

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Synthesis and gas permselectivity of CuBTC–GO–PVDF mixed matrix membranes†
New Journal of Chemistry ( IF 2.7 ) Pub Date : 2018-06-21 00:00:00 , DOI: 10.1039/c8nj00796a
Elahe Ahmadi Feijani _{1,

2,

3,

4,

5} , Hossein Mahdavi _{1,

2,

3,

4,

5} , Ahmad Tavassoli _{1,

2,

3,

4,

5}

Affiliation

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.

中文翻译：

CuBTC-GO-PVDF混合基质膜的合成和气体选择性†

将CuBTC（铜（II）苯-1,3,5-三羧酸铜）金属有机骨架（MOF）和氧化石墨烯（GO）纳米片引入半结晶PVDF中以产生混合基质膜（MMM）以促进气体分离表现。PVDF中的CuBTC / GO共存对MMM的热，机械和渗透选择性具有积极影响。尽管MMMs具有较高的对多孔CuBTC颗粒的渗透性，但GO纳米片主要负责在PVDF基质中诱导出显着的选择性。对于含9.5 / 0.5 wt％CuBTC / GO的MMM，据报道最佳的气体分离效果。在这方面，获得的He和CO _2的渗透率为10.066和3.316 barrer，伴随着He / CH ₄，He / N _2的增加超过100％和CO ₂ / CH ₄气体选择性。填料的均匀分散，填料形态和良好的聚合物/填料相互作用是造成这种有趣现象的原因。

更新日期：2018-06-21

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