Abstract:

As one of the main components of industrial wastewater, phenolic compounds are highly toxic to human beings and harmful to the environment. These compounds are internationally recognized as priority pollutants in water. Therefore, removal phenolic wastewater efficiently is an urgent and challenging problem to be solved. Metal organic frameworks (MOFs) and their derived materials are novel porous nanomaterials with large specific surface area, adjustable active sites and easy to be chemically modified, showing potential application prospects in many fields such as wastewater treatment. Based on the structural characteristics and physicochemical properties of phenolic compounds, the research progress on the adsorption of these compounds by MOFs and their derived materials in recent years was reviewed. The π-π interaction, acid-base interaction, electrostatic interaction, hydrogen bond, metal coordination and hydrophobic interaction were mainly introduced. Combined with the mechanisms that were mentioned above, the structure and characteristics of MOFs and their functional modified materials were analyzed and the influence of different phenolic compounds on the adsorption performances were discussed. In the last part, the future research focus of MOFs in the treatment of phenolic wastewater were also prospected.

Key words: metal organic frameworks (MOFs), phenolic compounds, wastewater treatment, adsorption mechanism, adsorption separation

摘要：

工业污水的主要成分中，酚类化合物对人类和环境毒害极大，是世界公认的水体中优先控制的污染物。因此，如何高效处理酚类废水是亟待解决的难题。金属有机框架材料（MOFs）及其衍生物是一种高比表面积、活性位点可调、便于化学修饰的新型多孔纳米材料，在污水处理等多个领域展示出潜在的应用前景。本文以酚类物质的结构特点和物理化学性质为基础，综述了近几年来MOFs及其衍生材料对酚类物质的吸附方面的最新研究进展。重点介绍了π-π共轭作用、酸碱共轭作用、静电作用、氢键作用、金属配位作用以及疏水作用，并结合上述机理，剖析了MOFs及其功能化改性材料的结构和特性以及对不同酚类化合物吸附性能的影响规律。最后，对MOFs在酚类废水处理方面的前景和今后的研究重点作了展望。

关键词: 金属有机骨架材料, 酚类物质, 污水处理, 吸附机理, 吸附分离