Health & Environmental Research Online (HERO)


Print Feedback Export to File
6649240 
Journal Article 
Deposition of platinum on boron-doped TiO2/Ti nanotube arrays as an efficient and stable photocatalyst for hydrogen generation from water splitting 
Sun, M; Jiang, Y; Tian, Mei; Yan, H; Liu, Ran; Yang, L; , 
2019 
1 
RSC Advances
EISSN: 2046-2069 
ROYAL SOC CHEMISTRY 
CAMBRIDGE 
11443-11450 
WOS:000466756100048 
An efficient photocatalyst of boron-doped titanium dioxide/titanium nanotube array-supported platinum particles (Pt-B/TiO2/Ti NTs) was fabricated for photocatalytic water splitting for hydrogen production through a two-step route. First, B/TiO2/Ti NTs were prepared by anodic oxidation using hydrofluoric acid as electrolyte and boric acid as a B source. Then, Pt particles were deposited on the surface of B/TiO2/Ti NTs by photo-assisted impregnation reduction. The structure and properties of Pt-B/TiO2/Ti NTs were characterized by various physical measurements which showed the successful fabrication of Pt-B/TiO2/Ti NTs. The Pt-B/TiO2/Ti NTs, with a B-doping content of 15 mmol L-1, showed the highest photocatalytic activity and exhibited a photocatalytic hydrogen-production rate of 384.9 mol g(-1) h(-1), which was 9.2-fold higher than that of unmodified TiO2/Ti NTs (41.7 mol g(-1) h(-1)). This excellent photocatalytic performance was ascribed mainly to the synergistic effect of Pt and B, which could enhance the photocatalytic activity of TiO2/Ti NTs.