Αποτελέσματα Αναζήτησης
27 Δεκ 2021 · Here, we have developed model Pt/TiO 2 catalysts based on the deposition of colloidal Pt nanoparticles and studied their atomic and electronic structures before and after a postdeposition treatment that induces catalytic activity using aberration-corrected scanning transmission electron microscopy, electron energy loss spectroscopy, and first ...
The XRD analysis of the prepared sample of TiO 2 nanoparticles was done using a Bruker make diffractometer, Cu-Kα X-rays of wavelength (λ)=1.5406 Å and data was taken for the 2 θ range of 10° to 70° with a step of 0.1972°.
30 Σεπ 2023 · Pt forms a Schottky barrier at the interface of TiO 2, and this barrier improves the efficiency of photocatalytic reactions [6] compared to other dopants. Pt increases electron capture and therefore reduces the rate of electron–hole pair recombination.
15 Ιουν 2024 · This study presents a thorough spectroscopic analysis of TiO2-Pt systems under LED irradiation, with a focus on elucidating the photodeposition process of Pt nanoparticles onto TiO2...
By controlling the calcination temperature, the different structures of TiO2 (anatase and rutile) have been achieved which is considered a new technique for phase transformation.
1 Οκτ 2018 · Highlights. •. Enhanced photocatalysis rendered upon Pt loading in TiO 2. •. Pt loading resulted in 45 fold increase in catalytic reduction of 4-nitrophenol. •. Pt/TiO 2 nanocomposite capable of reducing mixture of recalcitrant compounds. •. Recyclability test reveal Pt/TiO 2 is stable and reusable. Abstract.
20 Νοε 2023 · These results straightforwardly differentiated the catalytic behavior of Pt particles, clusters and single-atoms at the same metal loading and over the same TiO 2 support, and further demonstrated that the electronic structures of Pt entities played a decisive role in the catalytic oxidation, in addition to the specified sizes.
