Stable synthesis mechanism and photocatalytic properties of TiO₂ nanocrystals with different morphologies derived from potassium titanate nanowires.

ABSTRACT: This study explored key factors influencing TiO₂ morphology using potassium titanate nanowires (KTNWs) as precursors. The pH of the hydrothermal solution was identified as critical in controlling TiO₂ morphology. Different washing methods for precursors synthesized under alkaline conditions lead to varying pH environments in the subsequent hydrothermal solutions, thereby influencing the growth direction of TiO₂ nuclei. Even a very slight pH change could cause a huge difference in the morphology of TiO₂, by adjusting precursor washing methods, rod-like, cuboidal, and octahedral bipyramidal TiO₂ nanocrystals were synthesized, the octahedral bipyramidal TiO₂ exhibiting the smallest particle size. Acid treatment could stabilize

SUBMITTER: Chai M 

PROVIDER: S-EPMC11862880 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature