English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Titanium dioxide electrodes were prepared in three stages: (i) electrodeposition of Pt layer on a Ti substrate that was (ii) covered by a TiO2 thin film deposited by DC Magnetron Sputtering technique, at constant pressur of 0.8 Pa and oxygen partial pressure of 0.08 Pa, and (iii) annealed at 400 oC. The structural (XRD) characterization of the films was performed, showing a predominant a nat se-TiO2 phase, where some peaks corresponding to the Ti/Pt substrate were als o ob erved. The average crystallite size for the films was 44 nm, showing the nanocryst alline nature of these anatase-TiO 2 films. The surface morphology of the films was stud ied by scanning electron microscopy and revealed agglomerates of nanosized g rains or particulates, distributed over the substrate surface with a ‘blooming flowerlike’ appearance. The nanosized grains result in an increase in active surface area nd also promote the formation of porous TiO2 films. The performance of Ti/Pt/TiO 2 as anode was evaluated in the electrodegradation of an azo dye, the acid orange 7 (AO7). Assays were run at 0.1, 0.25 and 1 mA cm, using AO7 concentration of 50 mg L , and after 12 h assays colour (484 nm) and chemical oxygen demand removals up to 97 and 70% were obtained, respectively. The energetic yield decreased with th e increase in current density, which is typical from a process controlled by diffusion. The platinization of the substrate improves the adhesion of the TiO 2 film, increasing its lifetime, and increases the conductivity of the films, decreasing the energetic costs of the process.

Ti/Pt/TiO2 electrodes prepared by DC Magnetron Sputtering: Environmental application on the degradation of the Acid Orange 7