Journal ArticleDOI
Self-Doped Ti3+ Enhanced Photocatalyst for Hydrogen Production under Visible Light
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TLDR
The UV-vis spectra show that the Ti(3+) here extends the photoresponse of TiO(2) from the UV to the visible light region, which leads to high visible-light photocatalytic activity for the generation of hydrogen gas from water.Abstract:
Through a facile one-step combustion method, partially reduced TiO2 has been synthesized. Electron paramagnetic resonance (EPR) spectra confirm the presence of Ti3+ in the bulk of an as-prepared sample. The UV−vis spectra show that the Ti3+ here extends the photoresponse of TiO2 from the UV to the visible light region, which leads to high visible-light photocatalytic activity for the generation of hydrogen gas from water. It is worth noting that the Ti3+ sites in the sample are highly stable in air or water under irradiation and the photocatalyst can be repeatedly used without degradation in the activity.read more
Citations
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Copper reduced defective TiO2 nanoparticles with enhanced visible light photocatalytic activity
Journal ArticleDOI
Light-Induced Migration of Spin Defects in TiO2 Nanosystems and their Contribution to the H2 Evolution Catalysis from Water.
Zdeněk Bad'ura,Alberto Naldoni,Shanshan Qin,Aristides Bakandritsos,Štěpán Kment,Patrik Schmuki,Giorgio Zoppellaro +6 more
TL;DR: In this article, the photocatalytic activity for H2 production from water, without presence of hole scavengers, of thermally reduced TiO2 nanoparticles (H-500, H-700) and neat anatase were followed by in-situ continuous-wave light-induced electron paramagnetic resonance technique (CW-LEPR), in order to correlate the H2 evolution rates with the electronic fingerprints of the photoexcited systems.
Journal ArticleDOI
Photon-induced interfacial charge transfer mechanism of porous silicon/TiO2 nanoparticles for photoelectrochemical performance
TL;DR: In this paper, a dual-band gap photoelectrochemical (PEC) system was proposed to investigate charge separation and transport in a PEC system, where a distinct blue-shift in the NTRT-PL spectra was observed owing to the presence of Si 3+ and Ti 3+ cations.
Journal ArticleDOI
A novel 3DOM Ti3+ self-doped TiO2 for photocatalytic removal of NO
TL;DR: In this article, a 3D ordered macroporous (3DOM) Ti3+ self-doped TiO2 with an ordered distribution of macropores in the diameter of 270nm is synthesized by a facile colloidal polystyrene template sol-gel and ice-water quenching method.
References
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Journal ArticleDOI
Visible-Light Photocatalysis in Nitrogen-Doped Titanium Oxides
TL;DR: Film and powders of TiO2-x Nx have revealed an improvement over titanium dioxide (TiO2) under visible light in optical absorption and photocatalytic activity such as photodegradations of methylene blue and gaseous acetaldehyde and hydrophilicity of the film surface.
Journal ArticleDOI
Efficient photochemical water splitting by a chemically modified n-TiO2.
TL;DR: A chemically modified n-type TiO2 is synthesized by controlled combustion of Ti metal in a natural gas flame and performs water splitting with a total conversion efficiency of 11% and a maximum photoconversion efficiency of 8.35% when illuminated at 40 milliwatts per square centimeter.
Journal ArticleDOI
Inorganic Materials as Catalysts for Photochemical Splitting of Water
TL;DR: A review of the known inorganic catalysts with a focus on structure-activity relationships is given in this article, where the first water splitting system based on TiO2 and Pt was proposed by Fujishima and Honda in 1972.
Journal ArticleDOI
Surface Science Studies of the Photoactivation of TiO2New Photochemical Processes
Tracy L. Thompson,John T. Yates +1 more
Journal ArticleDOI
Infrared Absorption of Reduced Rutile Ti O 2 Single Crystals
TL;DR: In this paper, the infrared absorption of a series of plane parallel plates having electrical resistivities ranging from 3 to 0.01 ohm-m has been examined and it is postulated that the electrical conductivity arises from the ionization of either one or two trapped electrons from each oxygen vacancy.
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