Mechanical Synthesis of COF Nanosheet Cluster and Its Mixed Matrix Membrane for Efficient CO2 Removal,ACS Applied Materials & Interfaces

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Mechanical Synthesis of COF Nanosheet Cluster and Its Mixed Matrix Membrane for Efficient CO2 Removal
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2017-08-21 00:00:00 , DOI: 10.1021/acsami.7b08032
Changchang Zou ₁ , Qianqian Li ₁ , Yinying Hua ₁ , Bihang Zhou ₁ , Jingui Duan ₁ , Wanqin Jin ₁

Affiliation

Covalent organic framework (COF) membranes used for selective removal of CO₂ were believed as an efficient and low-cost solution to energy and environmental sustainability. In this study, the amide modified COF nanosheet cluster with a 2D structure was facilely prepared through solid reaction, exhibiting good adsorption-based CO₂ selectivity (223 at 273 K and 90 at 298 K) toward N₂. Remarkably, the mixed matrix membrane (MMM) that consists of a lesser amount of COF filler (1 wt %) shows promising CO₂/N₂ gas selectivity (∼64). In addition, the competitive adsorption prompts the selectivity to ∼72 under an equimolar CO₂/N₂ mixture, which surpasses the values of all reported COF membranes. It is worth to note that the binary gas separation is stable during 120 h.

中文翻译：

机械合成COF纳米片簇及其混合基质膜以有效去除CO ₂

人们认为，用于选择性去除CO _2的共价有机骨架（COF）膜是能源和环境可持续性的高效低成本解决方案。在这项研究中，通过固相反应轻松地制备了具有2D结构的酰胺改性的COF纳米片簇，对N ₂表现出良好的基于吸附的CO ₂选择性（273 K在273 K和90 K在298 K）。值得注意的是，由较少量的COF填料（1 wt％）组成的混合基质膜（MMM）显示出有希望的CO ₂ / N ₂气体选择性（〜64）。另外，竞争性吸附促使在等摩尔CO ₂ / N ₂下选择性达到〜72。混合物，其值超过所有报告的COF膜的值。值得注意的是，二元气体分离在120小时内是稳定的。

更新日期：2017-08-22

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