Photo by a2eorigins from unsplash
Abstract Nanocrystalline TiO2 films are used for optical devices, gas sensors, catalysts, and biomaterials. In this work, large-area anatase films were deposited on titanium substrates via a simple HF-H2O2 solution… Click to show full abstract
Abstract Nanocrystalline TiO2 films are used for optical devices, gas sensors, catalysts, and biomaterials. In this work, large-area anatase films were deposited on titanium substrates via a simple HF-H2O2 solution approach. HF influenced the morphology, size, and hydrogen evolution rate (during water splitting) of the anatase film. Changes in the amount and chemical form of the Na2S-Na2SO3 sacrificial reagent were measured by UV–visible spectroscopy in the presence of a prepared TiO2 photocatalyst during the water-splitting reaction. A striking fluctuation in the concentration of HS−, which was attributed to its consumption by hole oxidation and regeneration from S42− by electron scavengers, indicated that a photocatalytic cycle was established between reactant and intermediates.
Journal Title: Polyhedron
Year Published: 2020
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!