Carboxyl groups do not play the major role in binding metal cations by graphene oxide
Julia Shayimova, R. R. Amirov, Artem Iakunkov, Alexandr V. Talyzin, Ayrat M. Dimiev
Abstract
despite lacking sulfate and carboxyl groups, coupled with our earlier published findings, strongly suggests that carboxyl groups do not play the main role in binding metal ions by GO, as is commonly believed. We propose that metal ions initiate a significant transformation in the GO structure to attain the most efficient coordination of metal ions. This reorganization might involve the metal cation induced C-C bond cleavage with the formation of enols at the newly formed edges.
Topics & Concepts
GrapheneOxideMetalIonMetal ions in aqueous solutionRelaxation (psychology)ChemistryInorganic chemistryComputational chemistryNanotechnologyMaterials scienceOrganic chemistrySocial psychologyPsychologyLanthanide and Transition Metal ComplexesMolecular Sensors and Ion DetectionGraphene research and applications