Article
Chemistry, Multidisciplinary
Guojing Xu, Peng Li, Nannan Wang, Xujin Qin, Zhenpeng Wang, Bo Guan, Penglei Chen, Minghua Liu
Summary: This study presents a method for fabricating ultrafine Ag/AgX nanoparticles and demonstrates their superior photocatalytic performance. The discretely distributed nanoparticles on graphene oxide and the higher utilization of photogenerated charge carriers lead to significantly enhanced catalytic activity.
ADVANCED MATERIALS INTERFACES
(2022)
Article
Engineering, Electrical & Electronic
K. Lakshmanamoorthy, S. Manivannan
Summary: Three different ionic liquids based on 1-butyl-3-methylimidazolium were prepared for synthesizing Ag/AgX-rGO nanocomposites, displaying excellent photocatalytic properties, with the samples containing Ag/AgX structures showing enhanced efficiency. The plasmonic silver in Ag/AgX-rGO samples increased sunlight utilization, while rGO facilitated rapid charge separation, resulting in higher dye degradation efficiency.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Engineering, Environmental
Mariya Midhu Francis, Anindita Thakur, Aniket Balapure, Jayati Ray Dutta, Ramakrishnan Ganesan
Summary: This work addresses the requirements for antimicrobial materials working under dark and visible-light conditions by designing a synthetic strategy to create CuO/AgX nanocomposites. The nanocomposites exhibit high antimicrobial characteristics and visible-light photocatalytic activity, making them promising for environmental applications.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Green & Sustainable Science & Technology
Y-y. Lin, C-s. Lu, F-y. Liu, H-h. Huang, J-h. Lin, C-c. Chen
Summary: The conversion of CO2 into renewable solar fuels through photoreduction is an attractive approach for addressing environmental issues and energy crises. This study successfully prepared BiSeX (X = Cl, Br, I) photocatalysts using a simple hydrothermal method and synthesized a binary composite catalyst BiSeX/g-C3N4 for optimal photocatalytic activity. The optimized BiSeX/g-C3N4 photocatalysts showed selective transition from CO2 to CH4 and eventually high-value hydrocarbons (C2+), making them promising materials for mitigating environmental pollution.
MATERIALS TODAY SUSTAINABILITY
(2023)
Article
Chemistry, Physical
Ruojia Zhang, Rakesh Chilivery, Defu Yao, Wenbin Chen, Fushen Lu, Wenhua Gao, Yiwen Fang, ZiYi Zhong, Yibing Song
Summary: This study proposes a simple dopamine-mediated bioinspired method to integrate surface tunable 3D-BiOX hierarchical microspheres in aqueous solutions under mild conditions, showing excellent photocatalytic activities and high photostability.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Natalya Khan, Matej Balaz, Mukhambetkali Burkitbayev, Batukhan Tatykayev, Zhandos Shalabayev, Renata Nemkayeva, Ardak Jumagaziyeva, Almagul Niyazbayeva, Islam Rakhimbek, Askhat Beldeubayev, Farit Urakaev
Summary: Microstructures with different content of sulfur and silver halides were successfully synthesized using the DMSO-mediated solvothermal synthesis method. The presence of S and AgX phases was confirmed by XRD and Raman analysis. The obtained microstructures exhibited low specific surface area and showed photocatalytic and antimicrobial activities.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Viorica-Elena Podasca, Mariana-Dana Damaceanu
Summary: Hybrid polymer films loaded with zinc oxide (ZnO) and zinc oxide associated to silver (ZnO-Ag) particles were synthesized and tested for their photocatalytic efficiency in degrading Methyl Orange (MO) in aqueous solution. The high photodegradation efficiency of about 95% was achieved by the hybrid film loaded with 5% ZnO-Ag particles, as confirmed by solution color fading and total-organic carbon (TOC) analysis.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
Niuchang Ouyang, Zezhu Zeng, Chen Wang, Qi Wang, Yue Chen
Summary: This study investigates the lattice dynamics and thermal properties of silver halide AgX (X = Cl, Br, I) compounds using machine learning potentials. The accurate extraction of third-order atomic force constants and the consideration of coherent thermal transport are found to be important for the calculation of the low thermal conductivity KL of AgX. However, even with the inclusion of four-phonon scattering, the calculated KL for AgI still overestimates the experimental values significantly. Molecular dynamics simulations using machine learning potential suggest that the higher-than-fourth-order lattice anharmonicity plays a crucial role in the low-frequency phonon linewidths of AgI at room temperature, which relates to the limitations of three- and four-phonon phase spaces. The KL of AgI calculated using MD phonon lifetimes including full-order lattice anharmonicity shows better agreement with experiments.
Article
Environmental Sciences
Jingwen Chen, Menglin Wu, Jiupai Ni, Chengsheng Ni
Summary: Photocatalytic oxidation of NOx using visible light is an environmentally friendly method. This study found that Cs3Bi2-xPbxBr9-x (x = 0.0443), with Br vacancy (V-Br) induced by Pb2+ doping, exhibits significant NO oxidation efficiency under visible light. Moreover, the di-azo coupling was found to passivate the activation of NO on V-Br.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Arantxa Danielle S. Montallana, Magdaleno R. Vasquez
Summary: Visible-light-active nanomaterials were fabricated for the photodegradation of organic compound in water using facile techniques. The immobilized Ag-TiO2 NPs in PVA showed high efficiency in removing methylene blue and decreasing TOC concentration in fishpond wastewater under visible-light irradiation, indicating potential applications in wastewater treatment. The catalysts demonstrated effectiveness in counteracting biochemical reactions in actual wastewater samples.
RESULTS IN PHYSICS
(2021)
Article
Chemistry, Inorganic & Nuclear
Batoul Almoussawi, Smritijit Sen, Sebastien Saitzek, Pascal Roussel, Houria Kabbour
Summary: The new series of thioapatite compounds Ba-5(VO4-alpha S alpha)(3)X (X = F, Cl, I) were prepared and characterized. The crystal structure of these compounds is built from mixed anion thiovanadate VO4-alpha S alpha, showing a triple anion lattice. The incorporation of a chalcogenide anion aims at raising the valence band to bring the band gap to the visible range for photoactive materials.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Gang Yan, Yefan Gu, Peiyu Qin, Wen Deng, Meina Lin, Chunna Huang, Yitong Ning, Hongliang Hu, Liguang Xiao
Summary: The photocatalytic degradation of formaldehyde is an ideal solution for indoor air pollution. In this study, a ternary heterojunction photocatalyst K-C3N4/Ag/Ag3PMo12O40 was synthesized and it exhibited significantly improved photocatalytic activity compared to other catalysts. The structure and mechanism of the photocatalyst were investigated, providing insights for the design of new and efficient photocatalysts for environmental applications.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Jun Cai, Yibing Xie, Chong Ma, Xueqian Wang, Langlang Wang, Ping Ning, Yixing Ma
Summary: A novel two-step solvothermal method was designed in this study to synthesize rGO-modified BiOX nanosheets, which showed significantly improved photocatalytic performance. O·2- and(OH)· were confirmed to be active species, and these materials have potential applications in heavy metal removal from industrial waste gases.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Huimei Yu, Qiaofeng Han
Summary: This study investigates how solvents affect the energy band structure and microstructure of BiOX photocatalysts, with ethylene glycol showing the best photocatalytic activity and aqueous solution demonstrating the worst performance. The results show that solvent-induced microstructure changes play a significant role in determining the photocatalytic performance of BiOX, while the impact on band potentials is relatively inconsistent. Additionally, different BiOX materials exhibit varying photocatalytic activity for different pollutants under different solvents.
Article
Environmental Sciences
Malathi Arumugam, Thillai Sivakumar Natarajan, Tinnakorn Saelee, Supareak Praserthdam, Muthupandian Ashokkumar, Piyasan Praserthdam
Summary: The translation emphasizes on the development and application of bismuth oxyhalides (BiOX) for photocatalytic treatment of organic pollutants in wastewater. While BiOX shows good absorption of solar light, the rapid recombination rate of photogenerated charge carriers limits its practical application. To overcome this issue, the development of BiOX-based ternary nanocomposites has received significant attention.
