Article
Engineering, Environmental
Yue Ran, Yuqi Cui, Yilin Zhang, Yaoxun Fang, Wenxuan Zhang, Xuelian Yu, Huachun Lan, Xiaoqiang An
Summary: This study successfully synthesized puff pastry-like g-C3N4/CdS nanoarchitectures using a molecular assembly strategy, which enhanced the separation of photocarriers and improved the catalytic efficiency by strengthening the interfacial interaction.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Yilei He, Lijuan Zhang, Yanze Wei, Xing Zhang, Zumin Wang, Ranbo Yu
Summary: The nano-heterostructured combination of SrTiO3 and TiO2, with optimized interface achieved through bandgap engineering, demonstrates high efficiency in separating charge carriers, leading to exceptional photocatalytic performance for H-2 production.
Article
Chemistry, Physical
Yifan Wang, Xiangyu Meng, Qiyu Hu, Meiyu Zhang, Xiaohu Cao, Chunjiang Xu, Yong Ding
Summary: The combination of Ti3+ doped TiO2-x with ZnIn2S4 resulted in a novel photocatalyst with improved hydrogen evolution reaction (HER) performance compared to TiO2-x alone. The formation of a Type II heterojunction enhanced the separation of photogenerated carriers and electron transfer rate, leading to higher hydrogen evolution rate.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Engineering, Environmental
Wenqiang Li, Heng Zhang, Manzhou Hong, Lilei Zhang, Xun Feng, Mengfei Shi, Wenxuan Hu, Shichun Mu
Summary: The study reveals that defect-rich RuO2 and TiO2 nano-heterostructures can enhance the efficiency of electrocatalysis in water splitting, with the formed D-RuO2/TiO2/TM nano-heterostructure showing good activity in hydrogen evolution reactions and oxygen evolution reactions in alkaline media.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Chemical
Zhongying Liu, Yihai Zhou, Liangjun Yang, Renchun Yang
Summary: High-efficiency photocatalysts of TiO2/Ti3C2 were prepared by a green method, showing a heterojunction interface accelerating the separation of photogenerated electron-hole pairs and promoting higher hydrogen production performance.
ADVANCED POWDER TECHNOLOGY
(2021)
Article
Chemistry, Physical
Hao Fang, Bo Wu, Xiaoli Sheng, Yanyun Wang, Xiaohai Bu, Yuming Zhou, Guomeng Dong, Chenghan Yang, Xian Zhang
Summary: This study constructs a unique nano heterostructure for efficient photocatalytic hydrogen evolution, with significantly improved hydrogen evolution rate. Experimental results are supported by analysis of ultrafast TA spectroscopy, electrochemical measurements, and density functional theory calculations, revealing the crucial role of structure in electron transfer efficiency.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Engineering, Chemical
Yan Liu, Xiao Wang, Wanneng Ye, Denys S. Butenko, Ping Lu, Qian Chen, Rongsheng Cai, Jin Sun, Yukun Zhu, Dongjiang Yang
Summary: The treatment of water pollution caused by antibiotic residues is crucial for human health and ecological environment. A FeOx-TNFs heterostructure was synthesized through surface engineering, showing efficient visible light-driven antibiotic degradation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Physical
Somaye Kafash, Hossain Milani Moghaddam
Summary: In this study, a porous polyaniline tube-like/TiO2 nano-heterostructure (PPTH) was prepared for H-2 sensing. The surface morphology of polyaniline, the content of one-dimensional TiO2 nanostructures, and the porosity of PPTH were found to significantly affect the sensing performance. The response and response/recovery time of H-2 gas sensing were considered based on the morphological change of TiO2. The p-n contacts between polyaniline matrix and one-dimensional TiO2 provided more active sites and facilitated electron transport, enhancing the physisorption of gas molecules.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Chang Xu, Yanzheng Chen, Simin Li, Jinghua An, Xiaoting Song, Haibin Si, Lu Li, Bo Tang
Summary: We developed a single-molecule fluorescence imaging technique to investigate the distribution and production of hydroxyl radicals (·OH) on TiO2-attached multiwalled carbon nanotubes (TiO2-MWCNTs) in aqueous solution. Our results demonstrated that the heterogeneous distribution of ·OH is closely related to the composition and heterostructure of the catalysts. By counting the single-molecule fluorescent bursts, we were able to evaluate the dynamic production rate of ·OH. Moreover, we confirmed that the production of ·OH on TiO2-MWCNTs mainly occurs through electron reduction during the aqueous photocatalytic process. This study unveils the mechanism of reactive oxygen species involved in photocatalytic reactions and provides guidance for the design of advanced semiconductor photocatalysts.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Materials Science, Multidisciplinary
Gedeng Wan, Yongqiang Yang, Huaze Zhu, Chao Zhen, Xiaoxiang Xu, Lianzhou Wang, Gang Liu
Summary: This study demonstrates the fast migration and efficient spatial separation of photogenerated charges in photocatalytic materials by constructing a three-phase heterostructure of CdS/PbTiO3/TiO2, leading to improved efficiency in solar water splitting reactions.
SCIENCE CHINA-MATERIALS
(2022)
Article
Engineering, Environmental
Xiaozhou Zhao, Yuguo Xia, Xiang Wang, Ning Wen, Haiping Li, Xiuling Jiao, Dairong Chen
Summary: In this study, a novel atomically thin BiOCl/Bi2WO6 heterostructure was constructed to enhance photocarrier separation in solar energy conversion. The resulting heterostructure exhibited superior photocatalytic CO2 reduction activity and selectivity, with improved CO2 uptake capability and interfacial charge transfer behavior. Theoretical calculations further supported the enhanced photoreduction selectivity.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Feng Shi, Chao Xing, Xuemei Wang
Summary: TiO2/MoSe2 composite photocatalysts were prepared by a solvothermal method to enhance catalytic activity. Increasing MoSe2 loading improved carrier utilization in TiO2, leading to higher hydrogen production rate with a quantum efficiency of about 36.8%.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Multidisciplinary
Yuanyuan Zheng, Yangang Sun
Summary: A novel flower-like S-scheme Bi2WO6/BiOCl nano-heterojunction was successfully fabricated by a simple one-pot hydrothermal method. The constructed structure showed excellent photocatalytic activity, with a degradation rate of 98.6% for RhB solution under visible light, which was 2.51 and 2.91 times higher than that of Bi2WO6 and BiOCl catalysts, respectively.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Aashna Nagar, Soumen Basu
Summary: Industrial discharge poses a threat to the survival of living beings. This study investigated the fabrication of Bi3TaO7/BiOCl photocatalyst and its effectiveness in degrading pollutants. The composite material showed high efficiency in removing tetracycline and methylene blue in different pH environments.
JOURNAL OF SOLID STATE CHEMISTRY
(2022)
Article
Green & Sustainable Science & Technology
T. T. Wang, S. C. Lim, C. L. Chiang, Y. J. Shen, P. Raghunath, J. R. Li, Y. G. Lin, M. C. Lin
Summary: A composite photoelectrode B-nGO/H:(NiO/TiO2) NTs with a unique heterostructure nanotube arrays was synthesized. The p-n junction created between p-type NiO and n-type TiO2 facilitates the electron-hole pair separation and interfacial electron transfer. The introduction of boron-doped reduced nanographene oxide nanoparticles (B-nGO NPs) and hydrogenation treatment further optimize the electron-hole separation and enhance the electron transfer. The as-synthesized B-nGO/H:(NiO/TiO2) NTs exhibit a high photocurrent density and an effective photoconversion efficiency under simulated sunlight irradiation.
MATERIALS TODAY SUSTAINABILITY
(2023)