大阪大学 · Energy
Tetsuro Majima 교수의 연구실은 태양광을 이용한 수소 생산을 핵심 목표로 하며, 광촉매를 활용한 효율적인 수분해 반응 기반의 태양 에너지 변환 기술 개발에 집중하고 있습니다. 특히 2차원 이종구조 광촉매(예: 블랙 흑연/비スマ스트 바나나티트, BP/Au/LTO)와 나노구조 촉매(예: MoS₂)를 활용한 전하 분離 메커니즘과 반응 동역학을 고해상도 분광법을 통해 규명하고 있습니다. 또한 비정상적인 DNA 구조의 유전적 불안정성과 생물공학적 응용 가능성에 대한 연구도 병행하고 있습니다. 이는 지속 가능한 에너지 기술과 생명과학의 융합적 접근을 추구하는 연구 환경입니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
Spontaneously solar-driven water splitting to produce H<sub>2</sub> and O<sub>2</sub> , that is, the conversion of solar energy to chemical energy is a dream of mankind. However, it is difficult to make overall water splitting feasible without using any sacrificial agents and external bias. Drawing inspiration from nature, a new artificial Z-scheme photocatalytic system has been designed herein based on the two-dimensional (2D) heterostructure of black phosphorus (BP)/bismuth vanadate (BiVO<sub>
Abstract Spontaneously solar‐driven water splitting to produce H 2 and O 2 , that is, the conversion of solar energy to chemical energy is a dream of mankind. However, it is difficult to make overall water splitting feasible without using any sacrificial agents and external bias. Drawing inspiration from nature, a new artificial Z‐scheme photocatalytic system has been designed herein based on the two‐dimensional (2D) heterostructure of black phosphorus (BP)/bismuth vanadate (BiVO 4 ). An effecti
In contrast to B-DNA that has a right-handed double helical structure with Watson-Crick base pairing under the ordinary physiological conditions, repetitive DNA sequences under certain conditions have the potential to fold into non-B DNA structures such as hairpin, triplex, cruciform, left-handed Z-form, tetraplex, A-motif, etc. Since the non-B DNA-forming sequences induce the genetic instability and consequently can cause human diseases, the molecular mechanism for their genetic instability has
Efficient utilization of solar energy is a high-priority target and the search for suitable materials as photocatalysts that not only can harvest the broad wavelength of solar light, from UV to near-infrared (NIR) region, but also can achieve high and efficient solar-to-hydrogen conversion is one of the most challenging missions. Herein, using Au/La<sub>2</sub> Ti<sub>2</sub> O<sub>7</sub> (BP-Au/LTO) sensitized with black phosphorus (BP), a broadband solar response photocatalyst was designed an
Herein, the structural effect of MoS<sub>2</sub> as a cocatalyst of photocatalytic H<sub>2</sub> generation activity of g-C<sub>3</sub> N<sub>4</sub> under visible light irradiation is studied. By using single-particle photoluminescence (PL) and femtosecond time-resolved transient absorption spectroscopies, charge transfer kinetics between g-C<sub>3</sub> N<sub>4</sub> and two kinds of nanostructured MoS<sub>2</sub> (nanodot and monolayer) are systematically investigated. Single-particle PL resu
Hoop-shaped π-conjugated molecules such as cycloparaphenylene (CPP) have attracted the attention of many chemists because they exhibit interesting properties due to the distorted π-electron system. To gain a systematic understanding of the properties that result from distorted π-electron systems, it is important to know precisely how these properties depend on the hoop size. In the present study, we have investigated the size dependence of the fluorescence properties of CPPs. The fluorescence sp
Nanostructured metal oxide semiconductors, such as TiO(2) and ZnO, have attracted great attention as the promising material for photovoltaic devices, photocatalysts for water splitting and environmental purification, sensors, batteries, etc. In this critical review, we have focused on the on-site observation of interfacial chemical reactions involving charge carriers and reactive oxygen species (ROS), such as singlet oxygen and the hydroxyl radical, generated by the photoexcitation of TiO(2) nan
Efficient water splitting for H<sub>2</sub> evolution under visible light irradiation has attracted more attention for solving the global environmental and energy issues, but it is still a major challenge to develop an earth-abundant and efficient photocatalyst. Herein, we report two-dimensional (2D)/2D heterostructured CdS/WS<sub>2</sub> (CdS/WS<sub>2</sub>), composed of nanosheet CdS (CdS) and nanosheet WS<sub>2</sub> (WS<sub>2</sub>), as an efficient photocatalyst for H<sub>2</sub> evolution.
Abstract Lithium‐ and magnesium phenyl‐2,4,6‐trimethylbenzoylphosphinates (TMPPL and TMPPM) are effective water‐soluble photoinitiators for the free‐radical polymerization of appropriate monomers such as acrylamide (AA) and methacrylamide (MAA) in aqueous solution. They are also capable of initiating the polymerization of other olefinic compounds such as styrene (St), methyl methacrylate (MMA) or acrylonitrile (AN) in water‐containing solvent mixtures such as 1:1 water‐acetonitrile mixtures. Thi
