Article
Spectroscopy
Junwei Hou, Tengze Xu, Yanbin Ning, Bingxuan Huang, Ye Yang, Qingyao Wang
Summary: Ti3+ self-doped TiO2-x nanotube arrays were prepared and characterized, showing high visible light response, photocurrent, and photoelectrocatalytic activities. The improved performance was attributed to the synergistic effect of narrowed energy gap and enhanced electron transportation, providing new opportunities for high-performance solar cells and photocatalysts.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Energy & Fuels
Junwei Hou, Hedong Yang, Boyao He, Jingui Ma, Yuan Lu, Qingyao Wang
Summary: The research focuses on the synthesis of hybrid photocatalysts for efficient dye removal and hydrogen generation in wastewater treatment. The TiO2 NTs/CeO2 photocatalyst exhibits excellent photostability and great potential for environmental remediation and new energy development.
Article
Materials Science, Multidisciplinary
Yan Li, Xueyue Zhang, Xiaoyun Hu, Zhuo Li, Jun Fan, Enzhou Liu
Summary: A high-efficiency Z-scheme SnO2/TiO2 nanotube arrays (NTAs) were synthesized using a facile solvothermal method, showing improved photoelectrocatalytic activity and stable performance in degrading organic dyes such as MB and RhB. The enhanced PEC performance is attributed to a Z-scheme charge transfer route, inhibiting charge recombination and maintaining strong redox capacity.
Article
Engineering, Electrical & Electronic
Mengyao Shao, Bin Hu, Shengyan Ge, Xingfu Zhou
Summary: Ti/TiO2/SnO2-Sb-Ir/SnO2-Sb-Ni electrodes modified with different TiO2 interlayer materials were fabricated, and the TiO2 nanotubes-based electrode showed the best oxidative degradation ability and service life. In terms of wastewater treatment, Ti/TiO2-NTs/SnO2-Sb-Ir/SnO2-Sb-Ni electrodes were more efficient than Ti/SnO2-Sb-Ir/SnO2-Sb-Ni electrodes.
JOURNAL OF ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Jonas Klein, Michael Philippi, Fatih Alarslan, Tim Jaehnichen, Dirk Enke, Martin Steinhart, Markus Haase
Summary: High-temperature treatment, specifically through postsynthesis calcination, is crucial for maximizing the potential of functional nanomaterials. However, this step often hinders the preparation of colloidal solutions due to agglomeration. In this study, researchers successfully obtained stable colloidal solutions of calcined n-conductive antimony doped tin oxide (ATO) and titanium dioxide (TiO2) nanoparticles without using sacrificial materials. This was achieved by reducing the contact between nanoparticles through aerogel assembly. The resulting aggregates in solution, although slightly sintered, were remarkably small, with sizes below 30 nm.
Article
Engineering, Environmental
Weichen Zeng, Han Zhang, Rui Wu, Luming Liu, Guibai Li, Heng Liang
Summary: This study focused on the preparation, characterization, and sulfamethoxazole (SMX) removal performance of a SnO2-coated reactive electrochemical membrane (REM). The REM, fabricated by loading SnO2 on a reduced TiO2 nanotube arrays (RTNA)-based Ti membrane (TM), showed improved SMX removal efficiency in flow-through mode compared to batch mode. The presence of Sb as a dopant in SnO2 enhanced the electrocatalytic activity, leading to lower energy consumption compared to Bi-doped SnO2. The TM/RTNA/ATO demonstrated stability and durability in multi-cycle and accelerated lifetime tests, making it promising for water treatment applications.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Engineering, Chemical
Wenlan Ji, Weiwei Li, Tian C. Zhang, Yuan Wang, Shaojun Yuan
Summary: To reduce the global hazards of arsenic, arsenic-containing water needs to be purified. This study synthesized dimensionally stable TNTAs/SnO2/RuO2 anodes for efficient electrocatalytic oxidation of As(III) by successively electrodepositing SnO2 and RuO2 nanoparticles on TiO2 nanotube arrays. The optimized TNTAs/SnO2/RuO2-10 anode exhibited excellent electrochemical stability and longer service lifetime, with an oxidation conversion efficiency of As(III) still maintained at 98% even after 11 cycles of usage.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Environmental Sciences
Daying Chen, Lin Zhao, Danning Chen, Pengfei Hou, Jiashu Liu, Chuanbin Wang, Moses Akintayo Aborisade, Meilin Yin, Yongkui Yang
Summary: Efficient and stable electrodes are necessary for treating dye wastewater through electrochemical oxidation. In this study, an Sb-doped SnO2 electrode with TiO2 nanotubes as a middle layer was prepared and showed improved catalytic activity and stability compared to a Ti/SnO2-Sb electrode without a TiO2-NT interlayer. The optimized parameters for maximum amaranth dye decolorization efficiency were determined through response surface optimization. The study also proposed a potential degradation mechanism for the amaranth dye.
Article
Engineering, Chemical
Guangxin Wang, Hailan Zhang, Weizhen Wang, Xiaofeng Zhang, Yu Zuo, Yuming Tang, Xuhui Zhao
Summary: In this study, a Fe-TiO2-NTs/SnO2-Sb-Ce electrode was prepared by pulse electrodeposition, and its performance was characterized using various techniques. The results showed that the electrode had higher oxygen evolution potential, improved stability, and enhanced oxidation degradation capability compared to traditional TiO2-NTs/SnO2-Sb electrodes.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Chemical
Chaorui Xue, Ruizhi Xue, Ruirui Huang, Xiangqian Fan, Huinian Zhang, Wenjing Zheng, Ying Li, Ning Li, Qing Chang, Shengliang Hu
Summary: The performance of interfacial solar-driven water evaporation (ISDWE) technology was enhanced by anodized TiO2 nanotube film and applied voltage on Ti mesh. The water evaporation rate increased from 1.20 kg·m- 2·h-1 to 2.48 kg·m- 2·h-1. The hydrophilic and nanoporous nature of TiO2 nanotube film improved the solar absorptivity and wettability of Ti mesh, thereby reducing the water evaporation enthalpy and achieving a water evaporation rate of 1.98 kg·m- 2·h-1. The applied voltage also enhanced the salt-resistance property of Ti mesh coated with TiO2 nanotube film.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Environmental Sciences
Yen -Ping Peng, En-Xian Zhang, Chia -Hung Chen, Wu -Xing Chen
Summary: In this study, iron was deposited onto titanium dioxide nanotube arrays (TNAs) using the impregnation method to enhance its photocatalytic ability. The results showed that the iron modification successfully attached iron nanoparticles evenly to the TNAs, resulting in improved degradation of trichloroethylene (TCE) in a photoelectrochemical (PEC) system. The Fe-TNAs exhibited red-shifted absorption wavelength and reduced recombination of photo-generated electron-hole pairs, leading to enhanced TCE degradation.
Article
Chemistry, Multidisciplinary
Mingqing Yang, Hao Kang, Chunhui Niu, Lishuang Liu, Yong Lv
Summary: A stable aqueous colloidal dispersed ATO solution was successfully obtained by the addition of aqueous ammonia, with ATO nanoparticles evenly dispersed and no agglomeration or sedimentation occurring for at least 9 months. Characterization of the obtained ATO was carried out using various techniques, revealing different transmittance at different wavelengths, especially showing shielding performance in the near-infrared region.
Article
Chemistry, Multidisciplinary
Di Zhou, Rui Du, Zhenglong Hu, Shu Gao, Yafang Tu, Yunfei Fu, Guang Zheng, Youhua Zhou
Summary: Bi2MoO6/TiO2 heterostructures were synthesized, which exhibited excellent visible-light absorption due to the presence of Bi2MoO6 nanosheets. The hierarchical structure composed of Bi2MoO6 nanosheets and TiO2 nanorods significantly increased the specific surface area and pore volume of the photocatalysts. The improved performance of the Bi2MoO6/TiO2 heterostructures in methylene blue degradation was attributed to the extended absorption of visible light, the large specific surface area of the hierarchical structure, and the enhanced separation efficiency of electron-hole pairs.
Article
Chemistry, Multidisciplinary
Jie Gao, Shengqi Zhang, Xiaoqing Ma, Yi Sun, Xiaoyan Zhang
Summary: Introducing antimonene onto TiO2 nanorod arrays improves the photoelectric conversion efficiency and photocurrent density.
Article
Engineering, Electrical & Electronic
Yanan Wang, Jianhua Qian, Jinjuan Xing, Jiasheng Xu, Xikang Wang, Xiue Yu, Lin Liu
Summary: A TiO2-based antimony doped tin oxide (TiO2/Sb-SnO2) conductive composite was successfully prepared, characterized by various techniques, and showed excellent conductivity properties.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2021)
