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 ...
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.
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°.
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.
Pt/C-TiO2 photocatalysts with different amount of Pt (0.5–3.0 wt.%) were synthesized by the photodeposition method and were characterized in detail by X-ray powder diffraction (XRD), nitrogen...
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.
Context 1. ... patterns of Pt-N/TiO 2 samples of different nitrogen dosage are shown in Fig. 2. Peaks marked ''A" and ''B" corresponds to anatase and brookite phases, respectively. Both...
