TiO2 nanoparticles with superior hydrogen evolution and pollutant degradation performance

authored by
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.

Organisation(s)
Institute of Technical Chemistry
External Organisation(s)
University of Tabriz
Saint Petersburg State University
Type
Article
Journal
International Journal of Hydrogen Energy
Volume
44
Pages
24162-24173
No. of pages
12
ISSN
0360-3199
Publication date
13.09.2019
Publication status
Published
Peer reviewed
Yes
ASJC Scopus subject areas
Renewable Energy, Sustainability and the Environment, Fuel Technology, Condensed Matter Physics, Energy Engineering and Power Technology
Sustainable Development Goals
SDG 7 - Affordable and Clean Energy, SDG 12 - Responsible Consumption and Production
Electronic version(s)
https://doi.org/10.1016/j.ijhydene.2019.07.129 (Access: Closed)