In the present work, extended Argon ion bombardment was used to modify anatase TiO2 nanotube (NTs) layers. In situ X-ray photoelectron spectroscopy revealed a high content of sub-oxide formed (Ti3+, Ti2+ states) in the nanotube layers. These samples were tested for their ability to show open-circuit photocatalytic hydrogen evolution. We found for UV (cw laser 325nm) illumination as well as for AM1.5 conditions, a strongly enhanced H2 evolution activity in absence of the usual noble metal-nanoparticle decoration. We conclude therefore that these sub-oxide states can play an important role in the activation of TiO2 nanotubes - namely as a H2 evolution co-catalyst.
Catalytic Resonance Theory: Kinetics and Frequency Response of Light-Promoted Catalysis
University of Minnesota（明尼苏达大学）；Center for Programmable Energy Catalysis (CPEC), University of Minnesota（明尼苏达大学可编程能源催化中心）；University of Minnesota, Department of Chemical Engineering & Materials Science（明尼苏达大学化学工程与材料科学系）
Using DFTB to Model Photocatalytic Anatase-Rutile TiO$_2$ Nanocrystalline Interfaces and their Band Alignment
TiO $_2$粉末中金红石和金红石纳米晶的能带排列效应导致电子空穴分离，提高了这些粉末的光催化效率。虽然尺寸效应和可能的对齐类型已被广泛研究，但对键合的双金属结构的界面几何形状对对齐的影响知之甚少。为了让各种各样的键合系统在不同的取向的结论性研究，我们已经开发了一个新的密度泛函紧束缚参数集，以正确地描述量子限制在纳米晶体。应用这一套，我们发现了定量的影响的界面结构上的能带排列。
Transparent TiO2 Nanotubes Arrays Directly Grown on Quartz Glass Used in Front- and Back-Side Irradiation Configuration for Photocatalytic H2 Generation
Impact of high-pressure columbite phase of titanium dioxide (TiO2) on catalytic photoconversion of plastic waste and Simultaneous hydrogen (H2) production
Two-dimensional vertically polarized Hg3AsSe4I monolayer for efficient photocatalytic water-splitting: promoting carrier separation by intrinsic electric field and Rashba effect
Frontier Institute of Science and Technology, State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University（西安交通大学前沿科学研究所、电气绝缘与电源设备国家重点实验室）；Key Lab of advanced optoelectronic quantum architecture and measurement (MOE), Beijing Key Laboratory of Quantum Matter State Control and Ultra-Precision Measurement Technology, and School of Physics, Beijing Institute of Technology（北京理工大学物理学院、光电量子架构与测量教育部重点实验室、北京市量子物质态控制与超精密测量技术重点实验室）
