A5046057235- Advanced Photocatalysis Techniques
- Copper-based nanomaterials and applications
- Iron oxide chemistry and applications
- Perovskite Materials and Applications
- Quantum Dots Synthesis And Properties
- Electrocatalysts for Energy Conversion
- TiO2 Photocatalysis and Solar Cells
- Gas Sensing Nanomaterials and Sensors
- Electronic and Structural Properties of Oxides
- Catalytic Processes in Materials Science
- Advanced Combustion Engine Technologies
- Advanced oxidation water treatment
- Combustion and flame dynamics
- Electrochemical Analysis and Applications
- Covalent Organic Framework Applications
- Machine Learning in Materials Science
- Advanced battery technologies research
- Chalcogenide Semiconductor Thin Films
- Ammonia Synthesis and Nitrogen Reduction
- Analytical Chemistry and Sensors
- MXene and MAX Phase Materials
- Nanomaterials for catalytic reactions
- Flood Risk Assessment and Management
- Atmospheric and Environmental Gas Dynamics
- Vehicle emissions and performance
University of Hyogo
2024-2025
Chuo University
2020-2024
Daqing Oilfield General Hospital
2024
Shinshu University
2021-2023
Chang'an University
2023
Yale University
2017-2020
The University of Tokyo
2015-2020
University of New Haven
2018-2019
Jiangsu University
2015-2019
Shanghai Jiao Tong University
2019
Development of sunlight-driven water splitting systems with high efficiency, scalability, and cost-competitiveness is a central issue for mass production solar hydrogen as renewable storable energy carrier. Photocatalyst sheets comprising particulate evolution photocatalyst (HEP) an oxygen (OEP) embedded in conductive thin film can realize efficient scalable using Z-scheme splitting. However, the use expensive precious metal films that also promote reverse reactions major obstacle to...
Significance Photocatalysts frequently require simultaneous loading of oxidative and reductive cocatalysts to achieve both efficient half-reactions within a single material. Nevertheless, unregulated distribution two will result in direct contact between oxidation reduction centers, leading detrimental charge recombination. This research presents center/edge approach load redox with controlled physical separation atomistic scale using single-atom architecture. spatial is critical for...
Abstract Artificial photosynthesis of H 2 O using earth-abundant water and oxygen is a promising approach to achieve scalable cost-effective solar fuel production. Recent studies on this topic have made significant progress, yet are mainly focused organic polymers. This set photocatalysts susceptible potent oxidants (e.g. hydroxyl radical) that inevitably formed during generation. Here, we report an inorganic Mo-doped faceted BiVO 4 (Mo:BiVO ) system resistant radical oxidation exhibits high...
Abstract Oxynitride photocatalysts hold promise for renewable solar hydrogen production via water splitting owing to their intense visible light absorption. Cocatalyst loading is essential activation of such oxynitride photocatalysts. However, cocatalyst nanoparticles form aggregates and exhibit weak interaction with photocatalysts, which prevents eliciting intrinsic photocatalytic performance. Here, we demonstrate efficient utilization photoexcited electrons in a single-crystalline...
Charge separation is crucial for an efficient artificial photosynthetic process, especially narrow-bandgap metal sulfides/selenides. The present study demonstrates the application of a p–n junction to particulate selenides enhance photocatalytic Z-scheme overall water splitting (OWS). constructed CdS–(ZnSe)0.5(CuGa2.5Se4.25)0.5 significantly boosted charge separation. A thin TiO2 coating layer also was introduced inhibit photocorrosion CdS and suppress backward reaction formation from...
We here present an innovative approach to increase the electron density of metallic Pd nanoparticles loaded on TiO2 photocatalysts by coordinating with surface-anchored organic ligands. X-ray photoelectron spectroscopy and absorption near edge structure measurements confirm negative charge nanoparticle induced donation from amine groups The electronically modified exhibits unprecedentedly high photocatalytic H2O2 production O2 reduction. Mechanistic investigations suggest that enhanced...
Photocatalytic fuel production has gathered increasing attention due to its potential for large-scale deployment, but the quantum yield of existing photocatalysts remains limited mainly by inefficient separation photogenerated charge carriers. In addition, charge-separation principle differs from that photoelectrodes or photoelectrocatalysts. Therefore, comparing principles among all materials and systems reported under classification "photocatalysts" is desirable. We have identified three...
Z-Scheme water splitting by photocatalyst sheets is a promising approach for efficient and scalable H2 production. One of the most important challenges in developing such application photocatalysts with long absorption edges. In this study, RhCrOx-loaded LaMg1/3Ta2/3O2N (RhCrOx/LaMg1/3Ta2/3O2N) Mo-doped BiVO4 (BiVO4:Mo), edges at 600 540 nm, are investigated as hydrogen evolution oxygen sheets, respectively. The (RhCrOx/LaMg1/3Ta2/3O2N)/Au/BiVO4:Mo sheet exhibits activity that ∼5 times...
Metal selenides with narrow bandgaps (480–750 nm) are shown to be applicable stable photocatalytic <italic>Z</italic>-scheme pure water splitting.
The simultaneous control of the defect species and surface properties semiconducting materials is a crucial aspect improving photocatalytic performance, yet it remains challenging. Here, we synthesized Mg–Zr-codoped single-crystalline Ta3N5 (Ta3N5:Mg+Zr) nanoparticles by brief NH3 nitridation process, exhibiting water reduction activity 45 times greater than that pristine under visible light. A coherent picture relations between (comprising reduced Ta, nitrogen vacancies oxygen impurities),...
BaTaO2N responds to visible light up 650 nm and exhibits photocatalytic activity during the hydrogen oxygen evolution reactions. However, difficulty in promoting both processes simultaneously hinders realization of overall water splitting (OWS) over this material. Herein, we demonstrate activation stabilization BaTaO2N–based photocatalysts for visible-light-driven OWS by combining flux-assisted nitridation with Mg doping co-loading Cr2O3/(Na)Rh IrO2 co-catalysts. RbCl-assisted produced...
Photocatalyst sheets consisting of H 2 evolution photocatalyst (HEP) and O (OEP) particles applied to an underlying conductive layer show promise with regard promoting efficient scalable water splitting. One the most important challenges in enhancing performance such systems is establishing charge transfer between that are often thickly stacked on layer. In this study, reduced graphene oxide (RGO) investigated as additional solid mediator bridge particulate photocatalysts thus ensure...
The demands for cost-effective solar fuels have triggered extensive research in artificial photosynthesis, yet the efforts designing high-performance particulate photocatalysts are largely impeded by inefficient charge separation. Because separation a photocatalyst is driven asymmetric interfacial energetics between its reduction and oxidation sites, enhancing this process nanoscale tuning of on prerequisite not impairing kinetics selectivity surface reactions. In study, we realize target...
Photoelectrochemical water oxidation over bare hematite (α-Fe2O3) involved physical–chemical processes through surface states. It is found that the state with a higher oxidative energy (S1) served as reaction intermediate for oxidation, while other lower (S2) was basically catalytically inactive and induced charge recombination. Since cocatalyst commonly loaded on α-Fe2O3 to enhance between states are supposedly important but remain unclear. In present study, we elucidated such by employing...
Promoting charge separation and redox reaction kinetics of semiconductor photocatalysts are crucial for enhancing the performance overall water splitting (OWS). However, it is rather challenging narrow bandgap due to severe recombination decreased driving force. The present work demonstrates that efficient utilization carriers on La5Ti2Cu0.9Ag0.1O7S5 (LTCA), an oxysulfide photocatalyst having absorption edge 650 nm, can be achieved Z-scheme OWS via Ga-doping Rh cocatalyst deposition in a...