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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Journal ArticleDOI
Research progress and surface/interfacial regulation methods for electrophotocatalytic hydrogen production from water splitting
Xiaolei Liu,Xiaolei Liu,Peng George Wang,Xizhuang Liang,Qian Zhang,Zongliang Wang,Yanxun Liu,Zhaoke Zheng,Youyong Dai,Baibiao Huang +9 more
TL;DR: In this article, the basic principle and performance evaluation parameters of electrocatalytic and photocatalytic hydrogen production are first introduced, followed by a comprehensive summary of the research progress in electro catalysts and cocatalysts for hydrogen production from water splitting.
Journal ArticleDOI
Electrochemical Doping of Compact TiO2 Thin Layers
TL;DR: In this paper, the authors investigated the electrochemical n-doping of dense thin films of TiO2 (anatase) by proton insertion from acidic aqueous electrolyte solution.
Journal ArticleDOI
Synergy of dopants and defects in ultrathin 2D carbon nitride sheets to significantly boost the photocatalytic hydrogen evolution
TL;DR: In this paper, a thermal annealing of atomically thin 2D carbon nitride sheets (CNs) in Se vapor, which can dramatically extend the absorption edge of the ultrathin CNs from 418 to 574 nm, is presented.
Journal ArticleDOI
Interfacial oxygen vacancy layer of a Z-scheme BCN–TiO2 heterostructure accelerating charge carrier transfer for visible light photocatalytic H2 evolution
TL;DR: In this paper, the effect of the surface oxygen vacancy layer of BCN-TiO2 binary heterostructures on the charge carrier transfer and photocatalytic hydrogen evolution was thoroughly investigated.
Journal ArticleDOI
The effect of N-doped form on visible light photoactivity of Z-scheme g-C3N4/TiO2 photocatalyst
TL;DR: In this paper, the difference of visible light activity between the direct contact g-C3N4/TiO2 Z-scheme composites obtained by one-step or two-step calcination process were investigated in detail by XRD, TEM, XPS, Raman and ESR technologies.
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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