A5045007467- Advanced Photocatalysis Techniques
- TiO2 Photocatalysis and Solar Cells
- Gas Sensing Nanomaterials and Sensors
- Catalytic Processes in Materials Science
- Transition Metal Oxide Nanomaterials
- Conducting polymers and applications
- Ammonia Synthesis and Nitrogen Reduction
- Thermography and Photoacoustic Techniques
- Diamond and Carbon-based Materials Research
- Supercapacitor Materials and Fabrication
- Photoacoustic and Ultrasonic Imaging
- Advanced Nanomaterials in Catalysis
- Plasma Applications and Diagnostics
- Copper-based nanomaterials and applications
- Electrochemical Analysis and Applications
- Force Microscopy Techniques and Applications
- Electronic and Structural Properties of Oxides
- Pigment Synthesis and Properties
- Plasma Diagnostics and Applications
- Organic Electronics and Photovoltaics
- Ga2O3 and related materials
- Polyoxometalates: Synthesis and Applications
- Lubricants and Their Additives
- Advanced Battery Materials and Technologies
- Fuel Cells and Related Materials
Kyushu Institute of Technology
2014-2023
The University of Kitakyushu
2016-2020
Japan Science and Technology Agency
2014-2016
Faculty (United Kingdom)
2016
Engineering (Italy)
2016
Hokkaido University
2006-2010
Mitsubishi Materials (Japan)
2006
Osaka University
2003
Kobe University
1992
Saiseikai Nakatsu Hospital
1992
Tungsten oxide loaded with nanoparticulate platinum is demonstrated to exhibit high activity for the decomposition of organic compounds both in liquid and gas phases; was almost comparable that TiO2 under UV light irradiation much higher than nitrogen-doped visible irradiation.
Anatase titanium(IV) oxide (TiO2) particles with specific exposed crystal faces were prepared by hydrothermal treatment of peroxo titanic acid (PTA) solution polyvinyl alcohol as a shape-control reagent. Crystal phase, shape, and size TiO2 found to be greatly dependent on pH value PTA time treatment. from 7 had {101} {001} faces, the shape changed The showed higher photocatalytic activity for acetaldehyde decomposition than commercial spherical particles. This result implies that back...
Abstract Correlation between structural and physical properties photocatalytic activities for five kinds of reactions 35 titania samples was obtained through multivariable analyses: were empirically reproduced by a linear combination six with fair reliability. While portion results could be interpreted using conventional mechanism, significant activity dependence on properties, not disclosed yet, suggested.
Here we propose a method for the identification of metal-oxide powders with energy-resolved distribution electron traps and conduction-band bottom position reflecting surface structure bulk structure, respectively, as fingerprint, based on degree coincidence given pair samples, measured using newly developed reversed double-beam photoacoustic spectroscopy.
A rhodium(III) ion (Rh3+)-modified TiO2 (Rh3+/TiO2) photocatalyst, prepared by a simple adsorption method and exhibiting high levels of photocatalytic activity in degradation organic compounds, was investigated using X-ray absorption fine structure (XAFS) measurements, (photo)electrochemical double-beam photoacoustic (DB-PA) spectroscopic photoluminescence measurements. Based on the results, features Rh3+ modifier working mechanism Rh3+/TiO2 photocatalyst are discussed. XAFS measurements...
In situ photoabsorption properties of titanium(IV) oxide (TiO2) powders under continuous ultraviolet irradiation were investigated by double-beam photoacoustic (PA) spectroscopy. This PA measurement enabled observation two kinds ultraviolet-light-induced intermediate species appearing on various TiO2 powder samples. Most the samples (type 1) exhibited due to production trivalent titanium (Ti3+) species, while transient absorption assigned trapped holes or surface peroxy was also observed for...
Abstract This article reports on an exploratory statistical analysis of the photocatalytic activity titanium(IV) oxide (TiO
Rutile TiO2 powder having a band gap of 3.0 eV was studied as photocatalyst for overall water splitting with respect to structural properties. The structures rutile samples were characterized by means X-ray diffraction, scanning electron microscopy, photoacoustic spectroscopy, and photoelectrochemical technique. It found that particles are photocatalytically active the reaction exhibit lower density surface trapping states slow oxidation kinetics, well spatially separated reduction/oxidation...
Electric-discharge nitrogen comprises three main types of excited species-atomic (Natom ), molecules (N2 *), and ions (N2+ ) - which have different lifetimes reactivities. In particular, the interfacial reaction locus between discharged water phase produces compounds such as ammonia nitrate (denoted N-compounds generically); this is referred to plasma/liquid (P/L) reaction. The Natom amount was analyzed quantitatively clarify contribution P/L We focused on quantitative relationship produced...
There are multiple active species at the interface between discharged gas phase and water phase. Activated nitrogen generated in plasma by dielectric barrier discharge (DBD). The reaction containing activated (P/L reaction) can produce nitrogen-derived compounds (N-compounds) water. We have already clarified mechanism of P/L focusing on highly atomic a previous study. In this study, we report excited but metastable molecules. Involving molecules [N2(A3Σu+)] with long lifetime, selectivity...
Shape-controlled rutile titanium(IV) oxide (TiO2) nanorods with various aspect ratios were prepared by two-step synthesis in the presence of two kinds inorganic anions. The first step from titanium(III) chloride solution induced formation aggregated needlelike TiO2, shape which largely depended on anion used. Moreover, shape-controlled TiO2 rods {110} side crystal faces and {111} and/or {001} edge obtained hydrothermal treatment TiO2. Their influenced starting material used treatment....