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Functionalized multiwalled CNTs in classical and nonclassical CaCO3 crystallization

dc.contributor.authorNeira-Carrillo A.
dc.contributor.authorVásquez-Quitral P.
dc.contributor.authorSánchez M.
dc.contributor.authorFarhadi-Khouzani M.
dc.contributor.authorAguilar-Bolados H.
dc.contributor.authorYazdani-Pedram M.
dc.contributor.authorCölfen H.
dc.date.accessioned2020-09-02T22:24:17Z
dc.date.available2020-09-02T22:24:17Z
dc.date.issued2019
dc.identifier10.3390/nano9081169
dc.identifier.citation9, 8, -
dc.identifier.issn20794991
dc.identifier.urihttps://hdl.handle.net/20.500.12728/5566
dc.descriptionMultiwalled carbon nanotubes (MWCNTs) are interesting high-tech nanomaterials. MWCNTs oxidized and functionalized with itaconic acid and monomethylitaconate were demonstrated to be efficient additives for controlling nucleation of calcium carbonate (CaCO3) via gas diffusion (GD) in classical as well as nonclassical crystallization, yielding aragonite and truncated calcite. For the first time, all amorphous calcium carbonate (ACC) proto-structures, such as proto calcite-ACC, proto vaterite-ACC and proto aragonite-ACC, were synthesized via prenucleation cluster (PNC) intermediates and stabilized at room temperature. The MWCNTs also showed concentration-dependent nucleation promotion and inhibition similar to biomolecules in nature. Incorporation of fluorescein-5-thiosemicarbazide (5-FTSC) dye-labeled MWCNTs into the CaCO3 lattice resulted in fluorescent hybrid nanosized CaCO3. We demonstrate that functionalized MWCNTs offer a good alternative for controlled selective crystallization and for understanding an inorganic mineralization process. © 2019 by the authors. Licensee MDPI, Basel, Switzerland.
dc.language.isoen
dc.publisherMDPI AG
dc.subjectAmorphous calcium carbonate
dc.subjectCalcite
dc.subjectCalcium carbonate
dc.subjectGas diffusion crystallization
dc.subjectMineralization
dc.subjectMultiwalled carbon nanotubes
dc.subjectPrenucleation cluster
dc.subjectVaterite
dc.titleFunctionalized multiwalled CNTs in classical and nonclassical CaCO3 crystallization
dc.typeArticle


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