Abstract:

Pervaporation (PV) has a promising application in the field of organic separation because of high separation efficiency, energy conservation, environmental protection and simple operation, while the key technology is the design and preparation of pervaporation membrane. The two-dimensional nanomaterial-based mixed matrix membranes combined advantages of both polymer membrane and two-dimensional nanomaterial, which has good industrial application prospect in pervaporation separation membrane, and thus it becomes the research hotspot. This paper introduced the pervaporation separation technology, organic pervaporation separation mechanism and the preparation methods of two-dimensional nanomaterial-based mixed matrix membranes, and the different types of two-dimensional nanomaterial-based mixed matrix membranes in the field of organic separation were presented. According to the separation mechanism of pervaporation, the characteristics of organic and the demand of industrialization, the development of two-dimensional nanomaterials with new structure, easy preparation and high selectivity was proposed. According to the film-forming principle and two phases interfacial interaction mechanism, the preparation method of mixed matrix membrane for organic separation was suggested. Based on the interactions between organic molecules and membrane microstructure, a new idea for the study of separation mechanism was proposed in combination with computer simulation technology.

Key words: pervaporation, two-dimensional nanomaterials, organic compounds, separation membranes, transport processes

摘要：

渗透汽化具有分离效率高、节能环保和操作简单等优点，在有机化合物分离领域具有广阔的应用前景，而关键技术是渗透汽化膜的设计和制备。二维纳米材料混合基质膜结合了聚合物膜和二维纳米材料的优点，是最有工业化应用前景的渗透汽化分离膜，成为了近年研究的热点。本文介绍了渗透汽化膜分离技术、有机物渗透汽化分离机理和评价方法、二维纳米材料混合基质膜的制备方法以及不同类型二维纳米材料混合基质膜在有机物分离领域的应用研究进展。结合渗透汽化膜分离机理、有机物的特性和工业化需求，提出开发新型结构、易制备和高选择性的二维纳米材料的设计思路；根据成膜原理和两相界面作用机制，提出有机物分离混合基质膜的制备方法；借助有机物分子与膜微结构的相互作用，结合计算辅助模拟技术，提出分离机理研究的新思路。

关键词: 渗透汽化, 二维纳米材料, 有机化合物, 分离膜, 传递过程