TiO2 nanoparticles with superior hydrogen evolution and pollutant degradation performance

verfasst von
Masih Darbandi, Behrouz Shaabani, Jenny Schneider, Detlef Bahnemann, Peyman Gholami, Alireza Khataee, Pariya Yardani, Mir Ghasem Hosseini
Abstract

The human life faces serious energy shortage and environmental pollution problems, therefore developing a facile and environmental friendly strategy for synthesizing nanoparticles (NPs) with improved photocatalytic activity could pave the way for different applications. In the present study, one-pot/in-situ fluorine-free synthesis process has been examined toward the solvothermal production of anatase TiO

2 nanoparticles with exposed facet orientation. This is an aim to achieve the excellent photocatalytic/photoelectrocatalytic performance. Most importantly addressing the global energy shortage, the synthesized TiO

2 NPs represent superior performance in photoelectrocatalytic water splitting toward hydrogen production. The overpotential required to drive the hydrogen evolution reaction was −391, −346 and −283 mV vs. Ag/AgCl for P25, cubic and truncated octahedral NPs, respectively. Additionally, TiO

2 NPs with exposed facets represent excellent photocatalytic performance toward environmental purification. As synthesized nanoparticles was examined via photocatalytic degradation of Acid Blue 5 and photocatalytic removal of NO gas. The enhanced photocatalytic and photoelectrocatalytic performance are associated to the effect of exposed facet orientation of final nanoparticles.

Organisationseinheit(en)
Institut für Technische Chemie
Externe Organisation(en)
University of Tabriz
Staatliche Universität Sankt Petersburg
Typ
Artikel
Journal
International Journal of Hydrogen Energy
Band
44
Seiten
24162-24173
Anzahl der Seiten
12
ISSN
0360-3199
Publikationsdatum
13.09.2019
Publikationsstatus
Veröffentlicht
Peer-reviewed
Ja
ASJC Scopus Sachgebiete
Erneuerbare Energien, Nachhaltigkeit und Umwelt, Feuerungstechnik, Physik der kondensierten Materie, Energieanlagenbau und Kraftwerkstechnik
Ziele für nachhaltige Entwicklung
SDG 7 – Erschwingliche und saubere Energie, SDG 12 – Verantwortungsvoller Konsum und Produktion
Elektronische Version(en)
https://doi.org/10.1016/j.ijhydene.2019.07.129 (Zugang: Geschlossen)