Co-doped mesoporous titania photocatalysts prepared from a peroxo-titanium complex solution
نویسندگان
چکیده
منابع مشابه
Nitrogen-doped titanium dioxide photocatalysts for visible response prepared by using organic compounds
In order to utilize visible light in photocatalytic reactions, nitrogen atoms were doped in commercially available photocatalytic TiO2 powders by using an organic compound such as urea and guanidine. Analysis by X-ray photoelectron spectroscopy (XPS) indicated that N atoms were incorporated into two different sites of the bulk phase of TiO2. A significant shift of the absorption edge to a lower...
متن کاملHydrogen peroxide route to Sn-doped titania photocatalysts
UNLABELLED BACKGROUND The work aims at improving photocatalytic activity of titania under Vis light irradiation using modification by Sn ions and an original, simple synthesis method. Tin-doped titania catalysts were prepared by thermal hydrolysis of aqueous solutions of titanium peroxo-complexes in the presence of SnCl4 or SnCl2 using an original, proprietary "one pot" synthesis not employi...
متن کاملRoom temperature synthesis of protonated layered titanate sheets using peroxo titanium carbonate complex solution.
We report the synthesis of peroxo titanium carbonate complex solution as a novel water-soluble precursor for the direct synthesis of layered protonated titanate at room temperature. The synthesized titanates showed excellent removal capacity for Pb(2+) and methylene blue. Based on experimental observations, a probable mechanism for the formation of protonated layered dititanate sheets is also d...
متن کاملAbsorption and action spectra analysis of ammonium fluoride-doped titania photocatalysts.
The photocatalytic behaviour of a series of ammonium fluoride (NH(4)F)-doped titania (TiO(2)) photocatalysts was investigated in the decomposition of acetic acid in aqueous suspensions and in the gas phase mineralization of acetaldehyde. Very similar photocatalytic activity trends, usually increasing with increasing the calcination temperature for a given nominal dopant amount, were obtained fo...
متن کاملStructure of a uranyl peroxo complex in aqueous solution from first-principles molecular dynamics simulations.
Static ab initio and density-functional computations, as well as Car-Parrinello molecular dynamics simulations in aqueous solution are reported for [UO2(OH)(κ(2)-O2)(H2O)2](-) and [UO2(OH)2(κ(1)-O2H)(H2O)](-). Whereas the κ(1)-hydroperoxo isomer is found to be more stable than the κ(2)-peroxo form in the gas phase, the order of stability is reversed in explicit bulk solution. Based on free ener...
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ژورنال
عنوان ژورنال: Materials Research Bulletin
سال: 2014
ISSN: 0025-5408
DOI: 10.1016/j.materresbull.2013.08.047