Sonochemical/hydration-dehydration synthesis of Pt-TiO2 NPs/decorated carbon nanotubes with enhanced photocatalytic hydrogen production activity
- verfasst von
- F.H. Abdulrazzak, F.H. Hussein, A.F. Alkaim, I. Ivanova, A.V. Emeline, D.W. Bahnemann
- Abstract
Modified Pt-TiO
2 NPs/decorated carbon nanotubes were synthesized utilizing sonochemical/hydration-dehydration techniques. Pt was loaded on TiO
2 by a photodeposition method keeping in mind the end goal to achieve electron-hole pair separation and promote the surface reaction. The morphological and basic properties of Pt-TiO
2/fCNTs were investigated by field emission scanning electron microscopy (FESEM), high resolution transmission electron microscopy (HRTEM), powder X-ray diffraction (XRD), UV-vis diffuse reflectance spectroscopy (DRS), photoluminescence (PL) and Raman spectroscopy. The selected area electron diffraction (SAED) patterns of Pt-TiO
2/fCNTs were obtained utilizing TEM-based energy dispersive X-ray spectroscopy (EDXS) analysis. It was found that the TiO
2 nanoparticles were uniformly distributed on the fCNTs, and the Pt particles were decorated on the surface of TiO
2/fCNTs. The photocatalytic hydrogen production activity of the Pt
(0.5%)-TiO
2/fCNTs
(0.5%) nanoparticle composites was investigated using a sacrificial agent methanol solution. Pt-loaded TiO
2 demonstrated a hydrogen evolution rate around 20 times that of TiO
2/fCNTs
(0.5%) (fSWCNTs, fMWCNTs). When compared with platinized TiO
2 in methanol, which was utilized as a control material, Pt-TiO
2/fCNTs demonstrated an almost 2-fold increment in hydrogen generation.
- Organisationseinheit(en)
-
Institut für Technische Chemie
- Typ
- Artikel
- Journal
- Photochemical and Photobiological Sciences
- Band
- 15
- Seiten
- 1347-1357
- Anzahl der Seiten
- 11
- ISSN
- 1474-905X
- Publikationsdatum
- 2016
- Publikationsstatus
- Veröffentlicht
- Peer-reviewed
- Ja
- ASJC Scopus Sachgebiete
- Physikalische und Theoretische Chemie
- Ziele für nachhaltige Entwicklung
- SDG 7 – Erschwingliche und saubere Energie
- Elektronische Version(en)
-
https://doi.org/10.1039/c6pp00240d (Zugang:
Unbekannt)
