Copper Hydroxide Ethanedisulfonate: A Cationic Inorganic Layered Material for High‐Capacity Anion Exchange

Abstract

Kationische Schichten: Kupferhydroxidethandisulfonat besteht aus kationischen Schichten (siehe Struktur einer [Cu4(OH)6]2+‐Schicht; grün Cu, rot O, weiß H) mit Ethandisulfonat als Anion für den Ladungsausgleich. Das Material zeigt exzellente Anionenaustauscheigenschaften für sowohl organische als auch Metalloxo‐Schadstoffe. Die Adsorptionskapazität für Permanganat ist dabei fünfmal höher als die von Hydrotalcit.

Base-Resistant Ionic Metal-Organic Framework as a Porous Ion-Exchange Sorbent

“…In case of cationic MOFs, although the uncoordinated anions are not a direct part of the framework backbone, their choice can be significant in the preparation. From the existing literature, it is observed that organic sulfonates, which are bulky molecules, are known to bind to metal centers typically at higher temperatures only ( Fei and Oliver, 2011 , Fei et al., 2013 , Sergo et al., 2015 , Yang and Fei, 2017 ). In the current context, such compounds can adapt the function of template anions for the creation of voids and can be an integral part of the framework.…”

Solvothermal synthesis and characterization of two inorganic–organic hybrid materials based on barium

“…[8][9][10] Recently we synthesized a structure composed of discrete lead fluoride layers covalently bonded to EDS molecules between the layers, 11 as well as two EDS frameworks with weakly bound EDS molecules that can be anion-exchanged for various anions such as nitrate, perchlorate or permanganate. [12][13][14] To date, no structures have been reported using barium and EDS.…”

Fast Room‐Temperature Synthesis of an Extremely Alkaline‐Resistant Cationic Metal–Organic Framework for Sequestering TcO4− with Exceptional Selectivity

“…[8][9][10] As a solid-liquid sorption approach with simple, easy operation, green characteristics, ion-exchange is an optimal method for capturing TcO 4 − . [11][12][13] By embracing the features of electrostatic attraction between anions and sorbents, cationic materials exhibit unique advantages for eliminating TcO 4 − from nuclear waste solution. Up to now, cationic materials, including inorganic cationic materials, porous organic polymer, anion-exchange resins, covalent-organic framework (COF), and metal-organic framework (MOF) materials have been leveraged for treatment of TcO 4 − .…”