沸石材料的改性及其对水体污染物的吸附性能

doi:10.16085/j.issn.1000-6613.2017-1334

摘要/Abstract

摘要： 吸附法以其选择性强、操作简易、二次污染少等优势逐步成为污水处理的重要方法。天然沸石材料具有孔腔结构丰富、吸附成本低廉以及吸附性能高等优势，但存在选择吸附性差、与水相分离困难、再生成本偏高等问题。通过改性，可以为沸石吸附剂对阴离子污染物的吸附提供更多吸附活性位点。本文基于沸石材料改性制备的国内外最新研究进展，总结了不同改性材料制备复合吸附材料的研究工作，重点介绍了沸石材料改性方法及其应用，进一步回顾了改性沸石材料对水中污染物的吸附性能和影响因素。通过改性提高沸石材料的选择吸附性能及吸附后的绿色再生将是推动沸石吸附材料规模化应用发展的核心。

关键词: 沸石, 改性, 制备, 污染, 吸附, 废水

Abstract: Adsorption is considered as an effective method in wastewater treatment due to its excellent selectivity,simple operation and less secondary pollution. Natural zeolite materials have attracted much attention of scholars because of their characteristics of rich pore structure, low adsorption costs and high adsorption performance. However, the poor adsorption selectivity, difficult separation with aqueous phase and high regeneration costs have limited their further application. Through modification of zeolite adsorbent, more active sites can be obtained for the adsorption of anionic pollutants. This review presents the latest advances on the modification and preparation of zeolite materials from various precursors. Special emphasis is put on the preparation of zeolite composite adsorbent with different modified materials. This review focuses on the methods and application of modified zeolite materials, as well as the performance in adsorption of water pollutants and the influence factors. Further improving the adsorption selectivity through modification and green regeneration after adsorption will be the core of pushing forward the large-scale application of zeolite materials.

Key words: zeolite, modification, preparation, pollution, adsorption, waste water

中图分类号:

王琳琳, 张智明, 丁阿强, 程然, 张铭杰, 吴东雷. 沸石材料的改性及其对水体污染物的吸附性能[J]. 化工进展, 2018, 37(06): 2269-2281.

WANG Linlin, ZHANG Zhiming, DING Aqiang, CHENG Ran, ZHANG Mingjie, WU Donglei. Modification of zeolite materials and their adsorption properties for the pollutants in aqueous solution[J]. Chemical Industry and Engineering Progress, 2018, 37(06): 2269-2281.

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