A5017040468- Advanced Photocatalysis Techniques
- TiO2 Photocatalysis and Solar Cells
- Porphyrin and Phthalocyanine Chemistry
- Gas Sensing Nanomaterials and Sensors
- Catalytic Processes in Materials Science
- Quantum Dots Synthesis And Properties
- Gold and Silver Nanoparticles Synthesis and Applications
- Chalcogenide Semiconductor Thin Films
- Copper-based nanomaterials and applications
- Electrocatalysts for Energy Conversion
- Analytical Chemistry and Sensors
- Cultural Heritage Materials Analysis
- Thermal and Kinetic Analysis
- Dyeing and Modifying Textile Fibers
- Advanced biosensing and bioanalysis techniques
- Inorganic and Organometallic Chemistry
- Electrochemical sensors and biosensors
- Lanthanide and Transition Metal Complexes
- Conducting polymers and applications
- DNA and Nucleic Acid Chemistry
- Lignin and Wood Chemistry
Osaka University
2024-2025
Tokyo Metropolitan University
2017-2024
National Institute of Technology, Tokyo College
2019
Joint Center for Artificial Photosynthesis
2018
Under basic condition, SiTPyP(O<sup>−</sup>)<sub>2</sub>exerts two-electron oxidation of water to form hydrogen peroxide as the primary product in aqueous acetonitrile, which is initiated through one-electron oxidized process on electrode with faradaic yield 84–92%.
Localized surface plasmon resonance (LSPR) is widely applied in photo-functional technologies such as photocatalysis and solar cells. Research into LSPR materials has recently extended to semiconductor nanoparticles (NPs) because their composition structure flexibility allow for tuning of optical properties. However, many the crystallographic factors governing NPs are not understood due difficulty controlling crystal NPs. Here we report first time on size-controlled synthesis CuGaS2 (CGS)...
The visible light one-photon-induced two-electron water oxidation forming hydrogen peroxide is one of the most promising methodologies to get through bottleneck artificial photosynthesis by molecular catalyst. Al-porphyrins (Al–P) have been found exhibit either electrochemical, photochemical, or photoelectrochemical system upon one-electron Al–P. Although reaction mechanism has partly elucidated, key process cycle as well kinetic aspect in detail including each rate constant not yet...
The molecular catalyst sensitized system (MCSS), where an excited adsorbed on a semiconductor such as TiO2 injects electrons to the conduction band of leading hydrogen evolution/CO2 reduction coupled with oxidation water catalyst, has been one most probable candidates in approach artificial photosynthesis. For full utilization visible light, however, serious light scattering aqueous suspension region, which is generally experienced, should be avoided. Here, we report preparation optically...
Dimidium (3,8-diamino-5-methyl-6-phenylphenanthridinium: NH2PhP) is a well-known fluorophore as DNA probe, although its fluorescence enhancement mechanism not clear. In this study, we investigated the of NH2PhP on clay surface by observing behavior. Four systematically selected phenanthridinium derivatives (PDs): NH2PhP, 3,8-bisdimethylamino-5-methyl-6-phenylphenanthridinium (NMe2PhP), 5-methyl-6-phenylphenanthridinium (PhP) and 5-methylphenanthridinium (P) synthetic were used guest host...
A facile methodology of preparing a transparent aqueous dispersion SnO2 (rutile) nanoparticles through sol/gel propagative hydrolysis/condensation SnCl4 was reported. The using wet (wet-NPs) as prepared exhibited an enormous enhancement the photocatalytic H2 evolution reaction upon UV light irradiation, while NPs once dried from wet-NPs (dry-NPs) afforded only turbid with completely silent reactivity against evolution. Although wet- and dry-NPs have same quantum-sized crystallites, striking...
A photoelectrode composed of Zn-porphyrin dye and semiconductor titania nanosheets (TNS, Ti0.89O2) where was densely adsorbed without aggregation fabricated. Efficient electron injection from excited to TNS observed under the irradiation visible light. The absorbed photon current conversion efficiency (APCE) estimated be 31%. Action spectra for coincided well with absorption spectrum Zn-porphyrin. These results indicate that could act as an efficient n-type semiconductor.
Abstract Rh-doped titania nanosheet (Rh-TNS, Ti1.78Rh0.02□0.20O40.22− (□: vacant)) was synthesized. The adsorption behavior of Zn(II)TMPyP4+ (Zinc(II) 5,10,15,20-tetrakis(1-methylpyridinium-4-yl)porphyrin) on Rh-TNS examined. According to the absorption and fluorescence measurements, efficient quenching observed Rh-TNS, indicating electron injection from excited Rh-TNS. By irradiating monochromatic 450 nm light Rh-TNS/Zn(II)TMPyP4+ complex under presence donor (ascorbic acid) in water,...
Localized surface plasmon resonance (LSPR) is widely applied in photo-functional technologies such as photocatalysis and solar cells. Research into LSPR materials has recently extended to semiconductor nanoparticles (NPs) because their composition structure flexibility allow for tuning of optical properties. However, many the crystallographic factors governing NPs are not understood due difficulty controlling crystal NPs. Here we report first time on size-controlled synthesis CuGaS2 (CGS)...
When the resin are saponificated by Na2CO3 with high temperature and long time, there appears wrong color in soap, remains unfavourable paper when used as sizing matter.We carried several experiments about to avoid their color. First, we recognized that short time cooking NaOH was effective contamination at same adding Superite (Sodium Sulfoxylate formaldehyde) more effective. Namely, decomposed SO2 CH2O 100°C, these strong reduction power active This Chemical is alkali side, so agent not...