Role of the growth step on the structural, optical and surface features of TiO₂/SnO₂ composites.

ABSTRACT: TiO₂/SnO₂ composites have attracted considerable attention for their application in photocatalysis, fuel cells and sensors. Structural, morphological, optical and surface features play a pivotal role in photoelectrochemical applications and are critically related to the synthetic route. Most of the reported synthetic procedures require high-temperature treatments in order to tailor the sample crystallinity, usually at the expense of surface hydroxylation and morphology. In this work, we investigate the role of a treatment in an autoclave at a low temperature (100°C) on the sample properties and photocatalytic performance. With respect to samples calcined at 400°C, the milder crystallization treatment promotes anatase phase, mesoporosity and water chemi/physisorption,

SUBMITTER: Rimoldi L 

PROVIDER: S-EPMC6366208 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature