Article
Environmental Sciences
Ghedeir M. Alshammari, Mohammed S. Al-Ayed, Mohamed Anwar Abdelhalim, Laila Naif Al-Harbi, Akram A. Qasem, Mohammed Abdo Yahya
Summary: In this work, flower-like tungsten oxide nanoparticles (WO3 NPs) were synthesized using a simple precipitation method. The synthesized WO3 NPs showed good photodegradation percentages for Orange II and Congo red dyes under natural sunlight irradiation. Additionally, the WO3 NPs exhibited excellent sensing ability for Cd2+ ions in aqueous solutions. Based on the investigations, WO3 NPs proved to be an efficient photocatalyst and hold promise for future applications in preventing water pollution.
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Physical
Ravish K. Jain, Atul Khanna, Yogendra K. Gautam, Beer Pal Singh
Summary: The study involved deposition and analysis of V2O5, WO3, WO3/V2O5 (bi-layer), and WO3/V2O5/WO3/V2O5 (multi-layer) thin film samples. The multi-layer sample exhibited significantly enhanced electrochemical properties compared to single layer V2O5 and WO3 films.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Eunoak Park, Santosh S. Patil, Hyeonkwon Lee, Vijay S. Kumbhar, Kiyoung Lee
Summary: A novel photoanode material, tungsten oxide/bismuth vanadate/titanium oxide, has been synthesized through a combined hydrothermal-spin coating strategy, showing enhanced photoelectrochemical performance, decreased water oxidation kinetics, and improved photostability. The surface postmodification with a nanometer-thick layer of single-crystalline TiO2 significantly improves the stability, quantum efficiency, and electron transfer process, indicating a potential enhancement in photoelectrocatalytic activity.
Article
Nanoscience & Nanotechnology
Asif Iqbal, Andreas Kafizas, Carlos Sotelo-Vazquez, Rachel Wilson, Min Ling, Alaric Taylor, Chris Blackman, Kirk Bevan, Ivan Parkin, Raul Quesada-Cabrera
Summary: Recent studies have shown that nanostructured core-shell WO3/TiO2 (WT) heterojunctions can efficiently degrade organic pollutants, with significantly enhanced electron and hole recombination lifetimes and effective transfer between WO3 and TiO2. The combination of theoretical calculations and experimental measures provides insights into the superior photocatalytic efficiency and critical charge transfer processes in this model heterojunction photocatalyst.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Azam Sobhani, Masoud Salavati-Niasari
Summary: This review investigates hydrothermal synthesis of metal selenides and diselenides, discussing their structures, applications, and formation mechanisms, as well as strategies for developing various metal selenides. Over 50 hydrothermal methods for synthesizing metal selenides are discussed, along with the investigation of the photocatalytic activities of these compounds.
ADVANCES IN COLLOID AND INTERFACE SCIENCE
(2021)
Article
Materials Science, Ceramics
M. Kumar, Mohinder Singh Chauhan, M. Shaheer Akhtar, Ahmad Umar
Summary: Nanostructured ZnO doped with different Ce precursor concentrations were prepared and tested for photocatalytic and chemical sensing performances. Blue-shift was detected in 5 mol% Ce doping, which was found to be the optimum concentration for achieving the maximum dye degradation and sensing performances. Facile redox couple Ce3+/Ce4+ improved charge separation, leading to increased catalytic and PA sensing performances.
CERAMICS INTERNATIONAL
(2021)
Article
Environmental Sciences
Bablu Basumatary, Rajmoni Basumatary, Anjalu Ramchiary, Dimpul Konwar
Summary: Methylene blue degradation in wastewater was achieved effectively through the photocatalytic activity of Ag@TiO2/WO3 nanocomposite, which was prepared by a modified sol-gel precipitation route. The enhanced photocatalytic performance was attributed to reduced bandgap, improved charge carrier transfer efficiency, and plasmonic sensitization of Ag, resulting in a 25 times higher degradation rate compared to commercial DP25 photocatalyst under visible light.
Review
Biochemistry & Molecular Biology
Carlos Diaz, Maria Luisa Valenzuela, Miguel A. Laguna-Bercero
Summary: Nanomaterials have unique properties that make them highly attractive, and various solution fabrication methods have been developed for synthesizing metal and metal oxides nanoparticles. However, solid-state methods for obtaining nanomaterials are relatively scarce. This review discusses current solid-state methods and introduces a new general method for obtaining nanomaterials. By using macromolecular complexes as precursors, nanoparticles of metals and metallic oxides can be obtained via solid-state pyrolysis. The size and morphology of the nanoparticles depend on the polymer and metal arrangement. The paper also highlights the applications and challenges in this field.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Inorganic & Nuclear
M. Jothibas, S. Suganya, A. Muthuvel, E. Paulson
Summary: In this study, pure and different weight percentages of Ag ions doped ZnS nanoparticles were successfully synthesized using a solid-state reaction method. The physiochemical properties of the synthesized nanoparticles were thoroughly examined using appropriate characterization tools. The results showed that the average crystallite size of the crystalline nanoparticles decreased from 3.68 nm to 2.41 nm and then increased due to the influence of Ag-ions on the ZnS matrix. The optical research demonstrated that the bandgap wideness decreased due to Ag-ion interstitial secondary energy levels, enhancing the catalytic capability of ZnS nanoparticles under renewable sunlight irradiation.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Mireia Cifre-Herrando, Gemma Rosello-Marquez, Pedro Jose Navarro-Gazquez, Maria Jose Munoz-Portero, Encarnacion Blasco-Tamarit, Jose Garcia-Anton
Summary: This study focuses on the synthesis and characterization of different types of nanostructures for their potential use as photoanodes in the photoelectrocatalytic degradation of emerging contaminants. The results demonstrate that the optimized nanostructure (TiO2-ZnO) exhibits excellent performance in the photoelectrocatalytic degradation process.
Review
Chemistry, Physical
Jiaojiao Zhou, Heyou Han, Juewen Liu
Summary: Metal ions can coordinate with nucleotides (or DNA) to produce a variety of nanoparticles, fibers, and hydrogels. These coordination materials possess luminescent, catalytic, and molecular recognition properties, and have applications in biosensing, enzyme encapsulation, catalysis, templated shell growth, and cancer therapy.
Article
Engineering, Electrical & Electronic
Jiran Liang, Chang Xuan, Kangqiang Wang, Wanwan Tai, Penghui Ge, Hairun Zhang
Summary: We proposed a coupling annealing method to prepare WO3 nano-rods/thin film integral structure, which shows high sensitivity to NO2 gas and can be used in integrated circuit technology.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Engineering, Mechanical
Bozhao Wu, Yupeng Wu, Yangyang Pan, Ze Liu
Summary: In this study, experiments and molecular dynamic simulations were conducted to understand the atomic physical process and deformation mechanism in the nanoscale deformation of crystalline metals. The flow of metals into nanocavities was quantified by the aspect ratio of molded micro-/nanorods. It was found that the critical forming pressure is determined by the entering barrier, and the molding efficiency increases with decreasing cavity size.
INTERNATIONAL JOURNAL OF PLASTICITY
(2023)
Article
Chemistry, Physical
Mingfeng Chen, Yunhang Mao, Haotian Zhang, Manman Ren, Daiqun Wu, Xin Zhao, Weixia Tu
Summary: Microstructure modulation of photocatalysts is an effective way to improve photocatalytic performances. However, the synergistic effect of metal cationic vacancies and interstitial metals on photocatalysts has not been widely studied. This research demonstrates the in-situ formations of metal cationic vacancies and interstitial metals in WO3 through acid treatments, resulting in enhanced photocatalytic activities. Experimental characterizations and theoretical simulations confirm the changes in electronic structures of WO3, contributing to the improvement of photocatalytic activities.
Article
Chemistry, Analytical
Jianguo Zhou, Jieyao Song, Guangqiang Ma, Yongjian Li, Yanan Wei, Fei Liu, Hongjian Zhou
Summary: In this study, three-dimensional hierarchical titanium metal-organic framework (Ti-MOF) microflowers were developed for highly sensitive detection and efficient elimination of aluminum ions. The Ti-MOF microflowers exhibited excellent adsorption capacity and fluorescence characteristics, making them ideal for both adsorption and fluorescence detection of aluminum ions.
