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Improved photocatalytic activity and characterization of mixed tio2/sio2 and tio2/al2o3 materials
Carl A. Anderson,Allen J. Bard +1 more
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In this article, the characterization of mixed oxides of TiO2/SiO2 and TiO 2/Al2O3 prepared by sol−gel methods is described.Abstract:
The characterization of mixed oxides of TiO2/SiO2 and TiO2/Al2O3 prepared by sol−gel methods is described. Application of the TiO2/Al2O3 material for the photocatalytic decomposition of salicylic acid gave improved activity relative to TiO2-only materials. The photocatalytic activity of TiO2/SiO2, TiO2/Al2O3, and TiO2 toward the photocatalytic decomposition of phenol demonstrated the enhancement of local TiO2 sites on TiO2/SiO2 materials relative to the other materials. The characterization of the catalysts indicates that the TiO2/SiO2 materials consist of matrix-isolated TiO2 quantum particles, while the TiO2/Al2O3 materials do not.read more
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A surface science perspective on TiO2 photocatalysis
TL;DR: The field of surface science provides a unique approach to understand bulk, surface and interfacial phenomena occurring during TiO2 photocatalysis as mentioned in this paper, including photon absorption, charge transport and trapping, electron transfer dynamics, adsorbed state, mechanisms, poisons and promoters, and phase and form.
Journal ArticleDOI
ZnO Nanostructures for Dye-Sensitized Solar Cells
TL;DR: In this article, a review of recent developments in the use of ZnO nanostructures for dye-sensitized solar cell (DSC) applications is presented.
Journal ArticleDOI
The Effect of Calcination Temperature on the Surface Microstructure and Photocatalytic Activity of TiO2 Thin Films Prepared by Liquid Phase Deposition
TL;DR: In this article, a liquid-phase deposition (LPD) method was used on fused quartz by the liquid phase deposition method from a (NH4)2TiF6 aqueous solution upon addition of boric acid (H3BO3) and calcined at various temperatures.
Journal ArticleDOI
Surface modification of TiO2 photocatalyst for environmental applications
TL;DR: In this paper, a review of surface-modified TiO2 photocatalysis based on photo-induced interfacial charge transfer has been conducted, which is mainly focused on environmental remediation, and various surface modifiers are classified according to the kind of surface modifiers and their effects on photocatalytic reaction mechanism and kinetics are discussed in detail.
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Effects of Single Metal-Ion Doping on the Visible-Light Photoreactivity of TiO2
TL;DR: Titanium dioxide (M-TiO2) was synthesized by standard sol−gel methods and characterized by X-ray diffraction, BET surface area measurement, SEM, and UV−vis diffuse reflectance spectroscopy as mentioned in this paper.
References
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Journal ArticleDOI
Electrochemical Photolysis of Water at a Semiconductor Electrode
Akira Fujishima,Kenichi Honda +1 more
TL;DR: Water photolysis is investigated by exploiting the fact that water is transparent to visible light and cannot be decomposed directly, but only by radiation with wavelengths shorter than 190 nm.
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A simple model for the ionization potential, electron affinity, and aqueous redox potentials of small semiconductor crystallites
TL;DR: In this article, the photochemical redox potential of one carrier, as a function of the size of the crystal, has been studied in the case of a small number of electrons.
Journal ArticleDOI
Photocatalytic purification and treatment of water and air : by D.F. Ollis and H. Al-Ekabi (Editors), Elsevier Science Publishers BV, Amsterdam, 1993, ISBN 0-444-89855-7, xiv + 820 pp., f450.00/$257.25
Journal ArticleDOI
Photoelectrochemistry and heterogeneous photo-catalysis at semiconductors
TL;DR: In this paper, the principles and applications of semiconductor electrodes in photo-electrochemical (PEC) cells (liquid junction photovoltaic, photoelectro-synthetic, photocatalytic) are described.
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