Creation of a new type of ion exchange material for rapid, high-capacity, reversible and selective ion exchange without swelling and entrainment. Issue 3 (7th January 2016)

• Record Type: Journal Article
• Authors: Li, Baiyan; Zhang, Yiming; Ma, Dingxuan; Xing, Zhenyu; Ma, Tianliang; Shi, Zhan; Ji, Xiulei; Ma, Shengqian
• Is Part Of: Chemical science. Volume 7:Issue 3(2016:Mar.)
• Page Start: 2138
• Page End: 2144
• Publication Date: 2016-01-07
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c5sc04507j
• Languages: English
• ISSNs: 2041-6520

Abstract

Abstract : A new model for ion exchange materials has been proposed on the basis of ion exchange sites grafted to a porous organic polymer. Abstract : Ion-exchange materials, currently dominated by resins, are widely used in a plethora of areas. However, the drawbacks of conventional resins necessitate the creation of a new model of ion exchange materials that feature controllable swelling, easily accessible ion exchange sites, high ion exchange capacity, fast ion exchange kinetics, and high chemical stability as illustrated herein in the context of functionalizing a porous organic polymer (POP) with ion exchange groups. The advantages of POP-based ion exchange materials in comparison with conventional resins and other types of ion exchange materials have been highlighted through an evaluation of their performances in scavenging precious metals at trace concentrations, removal of nuclear waste model ions, and size-selective ion capture. Our work thereby provides a new perspective to develop ion functionalized POPs as a versatile type of ion exchange materials for various applications.