Ce³⁺-ion, Surface Oxygen Vacancy, and Visible Light-induced Photocatalytic Dye Degradation and Photocapacitive Performance of CeO₂-Graphene Nanostructures.

ABSTRACT: Cerium oxide nanoparticles (CeO₂ NPs) were fabricated and grown on graphene sheets using a facile, low cost hydrothermal approach and subsequently characterized using different standard characterization techniques. X-ray photoelectron spectroscopy and electron paramagnetic resonance revealed the changes in surface states, composition, changes in Ce⁴⁺ to Ce³⁺ ratio, and other defects. Transmission electron microscopy (TEM) and high resolution TEM revealed that the fabricated CeO₂ NPs to be spherical with particle size of ~10-12 nm. Combination of defects in CeO₂ NPs with optimal amount of two-dimensional graphene sheets had a significant effect on the properties of the resulting hybrid CeO₂-Graphene nanostructures, such as im

SUBMITTER: Khan ME 

PROVIDER: S-EPMC5517655 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature