Happy photocatalysts and unhappy photocatalysts: electron trap-distribution analysis for metal oxide-sample identification
نویسندگان
چکیده
An attempt to identify inorganic solids, such as metal oxides, using ERDT (energy-resolved distribution of electron traps)/CBB (conduction-band bottom) patterns, measured by reversed double-beam spectroscopy, a “fingerprint” is introduced.
منابع مشابه
Nanodiamonds as photocatalysts for reduction of water and graphene oxide.
Detonated nanodiamonds (NDs) exhibit remarkable photocatalytic activity towards the hydrogen gas generation upon 532 nm laser pulse irradiation. Hydrogenation dramatically increases the quantum yield, suggesting that hydrogen-terminated sites work as electron reservoirs. NDs can also be used as effective photocatalysts to reduce graphene oxide. The resulting composites exhibit high and stable p...
متن کاملPolymorphism and Structural Distortions of Mixed-Metal Oxide Photocatalysts Constructed with -U3O8 Types of Layers
A series of mixed-metal oxide structures based on the stacking of α-U3O8 type pentagonal bipyramid layers have been investigated for symmetry lowering distortions and photocatalytic activity. The family of structures contains the general composition A((n+1)/m)B(3n+1)O(8n+3) (e.g., A = Ag, Bi, Ca, Cu, Ce, Dy, Eu, Gd K, La, Nd, Pb, Pr, Sr, Y; B = Nb, Ta; m = 1–3; n = 1, 1.5, 2), and the edge-shar...
متن کاملFirst principles scheme to evaluate band edge positions in potential transition metal oxide photocatalysts and photoelectrodes.
The positions of electronic band edges are one important metric for determining a material's capability to function in a solar energy conversion device that produces fuels from sunlight. In particular, the position of the valence band maximum (conduction band minimum) must lie lower (higher) in energy than the oxidation (reduction) reaction free energy in order for these reactions to be thermod...
متن کاملScreening of Novel Metal Oxide Photocatalysts by Scanning Electrochemical Microscopy and Research of Their Photoelectrochemical Properties
Photocatalyst arrays of a number of metal oxides were prepared by dispensing metal precursor solutions onto fluorine-doped tin oxide-coated glass followed by annealing at 500 °C for 3 h. These were screened by scanning electrochemical microscopy with a scanning optical fiber, and the results showed that all Sn-doped Cd-In-Bi, Zn-In, and W-Cd oxide photocatalysts produced enhanced photocurrents ...
متن کاملPhenol degradation by powdered metal ion modified titanium dioxide photocatalysts
Publisher rights This is the author’s version of a work that was accepted for publication in Chemical Engineering Journal. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A def...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Catalysis Science & Technology
سال: 2022
ISSN: ['2044-4761', '2044-4753']
DOI: https://doi.org/10.1039/d1cy01955d