The Role of Cerium Valence in the Conversion Temperature of H₂Ti₃O₇ Nanoribbons to TiO₂-B and Anatase Nanoribbons, and Further to Rutile.

ABSTRACT: CeO₂-TiO₂ is an important mixed oxide due to its catalytic properties, particularly in heterogeneous photocatalysis. This study presents a straightforward method to obtain 1D TiO₂ nanostructures decorated with CeO₂ nanoparticles at the surface. As the precursor, we used H₂Ti₃O₇ nanoribbons prepared from sodium titanate nanoribbons by ion exchange. Two cerium sources with an oxidation state of +3 and +4 were used to obtain mixed oxides. HAADF-STEM mapping of the Ce⁴⁺-modified nanoribbons revealed a thin continuous layer at the surface of the H₂Ti₃O₇ nanoribbons, while Ce³⁺ cerium ions intercalated partially between the titanate layers. The phase composition and

SUBMITTER: Umek P 

PROVIDER: S-EPMC10421187 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature