Article
Chemistry, Multidisciplinary
Wenqian Chen, Shaomei Zhang, Ganyu Wang, Gang Huang, Zhichong Yu, Yirui Li, Liang Tang
Summary: Introducing 1T-MoS2 to form a ternary heterojunction greatly enhances the performance of CdS-based heterojunctions for solar hydrogen evolution.
Article
Chemistry, Physical
Han Van Dang, Yen Han Wang, Jeffrey C. S. Wu
Summary: This study demonstrated the high photoactivity of the Z-scheme photocatalyst PGTSR for splitting pure water and artificial seawater, achieving significant hydrogen/oxygen evolution rates without sacrificial agents under simulated sunlight. The separated H-2 evolution from O-2 through the photocatalytic artificial seawater splitting in a twin photoreactor also showed promising results.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Environmental Sciences
Muhammad Shahid Nadeem, Tauseef Munawar, Faisal Mukhtar, Sana Batool, Murtaza Hasan, Usman Ali Akbar, Abbas Saeed Hakeem, Faisal Iqbal
Summary: A well-matched direct Z-scheme ZnNiNdO/CdS heterojunction was fabricated and characterized. The composite showed enhanced photocatalytic and antibacterial performance through co-doping and tuning of the energy bandgap.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Inorganic & Nuclear
Jing Lu, Yaqian Zhang, Bowen Wang, Fenge Zhang
Summary: A Z-scheme CDs/Bi4O5Br2/ATP composite photocatalyst with varied proportions of CDs was synthesized using a dynamic adsorption method, which effectively lowered the recombination rate of electron-hole pairs and exhibited excellent photocatalytic degradation performance. The composite photocatalyst also demonstrated good stability and a high degradation efficiency for ciprofloxacin under simulated sunlight.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Malin Eqi, Cai Shi, Miao Zhang, Fuyan Kang, Jianhua Ma, Zhanhua Huang, Shouxin Liu
Summary: Exploring and optimizing charge transfer pathways in biomass photoreforming can lead to efficient and affordable catalysts for hydrogen and high-value chemical production. Here, (001)-facet-exposed TiO2 and hierarchical marigold-like CdS composites (TiO2/CdS) were used to study their glucose photoreforming activity. The optimized 40%-TiO2/CdS showed a high hydrogen release rate (7.08 mmol g(-1) h(-1)), significantly higher than TiO2 (0.02 mmol g(-1) h(-1)) and CdS (1.8 mmol g(-1) h(-1)). This work demonstrates the importance of regulated charge transfer pathways for efficient photoreforming towards hydrogen and acetic acid production.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Environmental Sciences
Pooneh Hemmatpour, Alireza Nezamzadeh-Ejhieh
Summary: The coupling of CdS and BiVO4 nanoparticles exhibits synergistic photocatalytic activity, with the highest enhancement observed at a CdS:BiVO4 mole ratio of 1:1. The study confirms the suitability of CdS-BiVO4 photocatalyst as a potential hydrogen production system.
Article
Environmental Sciences
M. Vijayan, Velu Manikandan, Chellakannu Rajkumar, Ashraf Atef Hatamleh, Bassam Khalid Alnafisi, G. Easwaran, Xinghui Liu, K. Sivakumar, Haekyoung Kim
Summary: In recent years, the use of dyes and nanoparticles has increased significantly, posing a serious health risk to ecosystems. This study fabricated TiO2 and g-C3N4 nanosheets through co-precipitation and thermal polymerization techniques, respectively. The g-CN-TiO2 nanocomposite with different weight percentages exhibited enhanced photocatalytic performance against methylene blue (MB) dye under UV-visible light illumination. The optimized g-CN-TiO2 nanocomposite (3:1) showed the highest catalytic efficiency due to the low amount of TiO2 nanoparticles deposited on g-CN nanosheets and the development of a Z-scheme system between TiO2 and g-CN.
Article
Chemistry, Multidisciplinary
Z. Huang, Q. Zhang, X. Ma, B. Chen, T. Fan, Z. Zhang, S. Zhang, Y. Dong, J. Li, Z. Chen, X. Yi
Summary: In this work, a zero-dimensional/one-dimensional CdS/g-C3N4 Z-scheme heterojunction was constructed to enhance the spatial separation of charge carriers and maintain the strong redox ability of the photogenerated charges for photocatalytic C-N coupling of benzylamine. The CdS/g-C3N4 exhibited a remarkable photocatalytic performance enhancement, achieving a yield of 199.79 mmol, approximately 4.3 times higher than pristine g-C3N4 under visible irradiation for 2 hours. The study also investigated the spatial charge separation and benzylamine conversion mechanisms on the Z-scheme junction. This work provides a promising strategy for the synthesis of high-value-added products through photocatalysis.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Engineering, Environmental
Xuelian Li, Saleem Raza, Changkun Liu
Summary: Electrospun TiO2@Ag@Cu2O nanofibers photocatalyst exhibits excellent visible light catalytic degradation performance, achieving a degradation efficiency of 99% for methylene blue within two hours. The combination of surface plasmon resonance effect of Ag and Z-scheme heterojunction structure contributes to the enhanced efficiency of the photocatalyst.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Ruixue Xiao, Jie Zhang, Tingting Jiang, Yefan Zhou, Yun Wang, Wenjia Xu, Yuhua Feng
Summary: A highly ordered CdS-Au-TiO2 ternary Janus structure was successfully synthesized via template-protected sequential growth and conversion method. The Janus structure exhibited high efficiency in photocatalytic degradation of methyl orange (MO) dye due to the integration of rectification effect, plasmonic effect, and Z-scheme charge transportation. The well-defined structural order allowed the correlation between structure and catalytic performance to be identified. The synthetic control and mechanism insights would facilitate the design and synthesis of sophisticated nanostructures for photocatalysis applications.
SCIENCE CHINA-CHEMISTRY
(2023)
Article
Engineering, Environmental
Vempuluru Navakoteswara Rao, Hyunguk Kwon, Yonghee Lee, Parnapalli Ravi, Chi Won Ahn, Kyeounghak Kim, Jun-Mo Yang
Summary: To ensure continuous and stable production of hydrogen, hierarchical nano-structures incorporating an ultrathin TiO2 shell material are developed within a few-layer Mxene nanosheet. Comparative analysis of CdS cores covered with three different shell transition metal oxides supported by Mxene showed that TiO2 displayed the highest photocatalytic activity under visible light irradiation.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Chong Liang, Mingyu Cui, Wei Zhao, Linyang Dong, Shangshang Ma, Xutang Liu, Dingkai Wang, Zhijie Jiang, Fei Wang
Summary: Photocatalytic technology is a promising method for alleviating environmental pollution. In this study, a novel V-based photocatalyst with Z-scheme heterostructure was constructed and showed superior ability in degradation of Rhodamine B and reduction of Cr (VI). The results demonstrate the important role of HPA-2 in the construction of Z-scheme heterojunction and environmental remediation.
Article
Materials Science, Ceramics
Mingxia Zhao, Zhiju Zhao, Zheng Wang, Junbing Jiang, Ling Yu, Liqin Yang, Hao Guo, Zhenyu Cai
Summary: ZnIn2S4/TiO2 photocatalyst prepared by hydrothermal method showed excellent reduction performance and stability under visible light, with a reduction rate of Cr (VI) reaching 99% in 60 minutes and maintaining performance after 5 recycling experiments.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Applied
Mingyu Cui, Chong Liang, Wei Zhao, Xutang Liu, Linyang Dong, Dingkai Wang, Shuiyuan Fu, Zhijie Jiang, Fei Wang, Xianyong Wei
Summary: This study demonstrates the successful depolymerization of lignin to produce aromatic compounds such as vanillin and vanillic acid using a Z-scheme photocatalyst CdS/HPA-2/CN. The CdS/HPA-2/CN photocatalyst exhibits excellent separation and transfer capacity of photogenerated charge carriers. The results also show that CdS/HPA-2/CN has good stability and recyclability.
FUEL PROCESSING TECHNOLOGY
(2022)
Article
Engineering, Environmental
Fang-Di Wu, Jyh-Cherng Chen, Jia-Peng Hu
Summary: A ternary composite photocatalyst TiO2/Ti3C2Tx/AgI with high catalytic activity was successfully synthesized using simple solvothermal and coprecipitation methods. This composite catalyst exhibited superior photocatalytic degradation activity for tetracycline hydrochloride (TCH) under simulated sunlight. The enhancement of photocatalytic activity can be attributed to the high conductivity and efficient transfer of photogenerated carriers facilitated by Ti3C2Tx and the Z-scheme heterojunction formed with non-metal Ti3C2Tx as the solid medium. Superoxide radicals, singlet oxygen, and holes were identified as the main active substances in the photocatalytic degradation process.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
