Postsynthetic Modification of Metal–Organic Frameworks by Vapor-Phase Grafting
Siyi Rong, Shizheng Chen, Pengcheng Su, Huiyu Tang, Miaomiao Jia, Yan Xia, Wanbin Li
Abstract
A vapor-phase grafting strategy is developed for the postsynthetic modification of metal–organic frameworks (MOFs). On the basis of the Schotten–Baumann reaction between acyl chloride (−COCl) and amino (−NH2) groups and hydrolysis of −COCl, the carboxylated MOFs could be prepared through simple exposure in vaporized acyl chloride molecules and immersion in water. The modified MOFs have well-maintained crystalline structures and porosities and show substantially improved fluoride removal performance.
Topics & Concepts
ChemistryGraftingMetal-organic frameworkChlorideHydrolysisFluorideSurface modificationMetalPolymer chemistryInorganic chemistryOrganic chemistryPolymerPhysical chemistryAdsorptionMetal-Organic Frameworks: Synthesis and ApplicationsCovalent Organic Framework ApplicationsFluoride Effects and Removal