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 ...
1 Ιουν 2023 · The TEM-selected area electron diffraction (SAED) patterns of the prepared TiO 2 +Pt catalysts (inset in Fig. 2, with ab-initio simulations for anatase, Pt, and their mixture) correspond to anatase TiO 2 and the minor presence of Pt in all the examined TiO 2 +Pt samples.
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°.
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...
1 Οκτ 2018 · In this study, visible light driven TiO 2 -Pt composite photocatalyst is developed for efficient removal of recalcitrant pollutant, namely 4-nitrophenol and Rhodamine B from water environment by a process of chemical reduction and photocatalytic degradation, respectively. The catalysts were synthesized by hydrothermal method followed the ...
1 Ιουλ 2022 · Abstract. For more than 20 years, Pt/TiO 2 represents the benchmark photocatalyst/co-catalyst platform for photocatalytic hydrogen (H 2) generation. Here, single atom (SA) Pt is decorated on different polymorphs of TiO 2 (anatase, rutile, and the mixed phase of P25) using a simple immersion anchoring approach.
24 Μαΐ 2016 · The presence of Pt deposits on TiO 2 is believed to retard the rapid charge-pair recombination by serving as an electron sink and facilitating interfacial electron transfer to dioxygen or...
