A proton-exchange poly(acrylic acid) supramolecular hydrogel for ultrahigh uranium adsorption
Zhongkuan Sun, Yongyi Chen, Yan Liu, Bing Na, Cheng Meng, Shuang Zhang, Shufen Zou, Hesheng Liu
Abstract
A PAA supramolecular hydrogel, via hydrogen bonding interactions, is capable of proton-exchange with uranyl ions. High-density carboxyl groups and exchangeable protons in PAA chains enable an ultrahigh uranium uptake, e.g. 1362 mg g −1 in 20 mg L −1 uranium-spiked water.
Topics & Concepts
UranylUraniumSupramolecular chemistryAcrylic acidProtonAdsorptionChemistryHydrogen bondIon exchangeNuclear chemistryPolymer chemistryIonInorganic chemistryMaterials scienceMoleculePhysical chemistryOrganic chemistryPolymerMetallurgyMonomerPhysicsQuantum mechanicsRadioactive element chemistry and processingCovalent Organic Framework ApplicationsChemical Synthesis and Characterization