Article
Materials Science, Multidisciplinary
Patrick E. J. Saloga, Tina Rybak, Andreas F. Thuenemann
Summary: In this study, a simple one-pot procedure was reported to obtain aqueous zinc oxide (ZnO) nanoparticle dispersions from ZnO nanoparticles dispersed in cyclohexane. Polysorbate 80 (Tween 80) was used as a phase transfer agent and colloidal stabilizer. The particle sizes could be controlled by adjusting the incubation time of the dispersion.
ADVANCED ENGINEERING MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Raja Kalimuthu, Kumuthan Meenachi Sellan, Dhivya Antony, Sudhagar Rajaprakasam, Vanniarajan Chokkalingam, Prabu Chidambaram, Selvaraju Kanagarajan
Summary: Bare and stabilized zinc oxide nanoparticles were prepared using a microwave-assisted method, and used as a priming agent to improve the quality of Vigna radiata under normal and moisture stress conditions. The priming effect was found to be more effective when the zinc oxide nanoparticles were capped with cysteine, leading to improvements in germination, seedling vigor, and enzyme activity.
Article
Chemistry, Physical
Weiqiang Li, Qixiu You, Jingjing Zhang, Wen Li, Hengyi Xu
Summary: The green synthesis of zinc oxide nanoparticles (LFL-ZnO) using Lactobacillus plantarum ZDY2013 fermentation liquid (LFL) was successfully achieved in this study. The LFL-ZnO exhibited a spherical morphology surrounded by LFL, as confirmed by SEM and TEM. The synthesized LFL-ZnO showed a hexagonal wurtzite structure with a crystallite size of 41 nm according to XRD analysis. The antibacterial activity of LFL-ZnO against methicillin-resistant Staphylococcus aureus (MRSA) was significant, with a minimum inhibitory concentration (MIC) of 100 μg/mL. The antibacterial mechanisms were attributed to the release of Zn2+ ions causing bacterial cell destruction and the generation of reactive oxygen species (ROS).
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
A. R. Pandimurugan, G. Vijaya Prasath, K. S. Usha, J. Vivekanandan, C. Karthikeyan, K. Sankaranarayanan, G. Ravi
Summary: A major problem in global health care is the emergence of antibiotic resistance in bacteria. In this study, pure and calcium-doped zinc tin oxide nanoparticles were synthesized using a microwave assisted method, and the effect of doping on antibacterial activity was investigated. The results showed that increasing the concentration of Ca ions led to a decrease in crystallite size and an increase in strain and dislocation density. The antibacterial assay demonstrated that the doping of zinc tin oxide nanoparticles with Ca ions significantly enhanced their antibacterial performance against Klebsiella pneumoniae bacteria by 99%.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Chemistry, Multidisciplinary
Luiza A. Gusmao, Diego A. Peixoto, Juliane Z. Marinho, Fernanda C. Romeiro, Rosana F. Gonsalves, Elson Longo, Carlos A. de Oliveira, Renata C. Lima
Summary: This study investigates the effect of alkali source in the formation of pure ZnO and Ag-doped ZnO samples synthesized using the microwave-assisted hydrothermal method. The presence of different alkali sources controlled the morphology of the samples and influenced their antifungal activity against Saccharomyces cerevisiae.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Review
Chemistry, Multidisciplinary
Gregor Primc, Katja Brencic, Miran Mozetic, Marija Gorjanc
Summary: This review provides an overview of recent work on low-temperature plasma-assisted synthesis of zinc oxide nanoparticles, discussing gas-phase and surface reactions as well as various synthesis techniques. The thermodynamical nonequilibrium conditions enable the formation of chemically reactive species that readily interact with Zn precursors, leading to the formation of nanoparticles or nanowires. Different plasma parameters and techniques can be used to synthesize high-quality nanowires and nanoparticles, with potential for large-scale production.
Article
Engineering, Chemical
Adam Kubiak, Sonia Zoltowska, Elzbieta Gabala, Miroslaw Szybowicz, Katarzyna Siwinska-Ciesielczyk, Teofil Jesionowski
Summary: A fast microwave-assisted method was used to grow zinc oxide under different pH conditions, resulting in materials with varying crystallinity, morphology, and thermal stability. The obtained zinc oxide materials showed good photodegradation and mineralisation efficiency of the model organic pollutant, 4-chlorophenol, in the UV light range. The kinetics of the photocatalytic degradation of 4-chlorophenol were determined based on a pseudo-first-order model, assuming the Langmuir-Hinshelwood mechanism.
Article
Chemistry, Applied
Esun Selvam, Yuqing Luo, Marianthi Ierapetritou, Raul F. Lobo, Dionisios G. Vlachos
Summary: The accumulation of plastic waste in the environment is a significant threat to both the environment and human health. Polyethylene terephthalate (PET), mainly found in single-use plastic bottles, contributes greatly to this waste. Current recycling strategies are not sufficient to address the global plastic waste problem. PET glycolysis shows promise as a depolymerization method, but finding effective and sustainable catalysts, as well as improving energy efficiency, remain challenges. In this study, we use microwave heating in PET glycolysis and identify ZnO as an excellent catalyst. We demonstrate how ZnO's particle size, facet, and hydrogen bonding affect its activity. We also show that ZnO-catalyzed glycolysis achieves high yields of bis(2-hydroxyethyl) terephthalate (BHET) from real-world post-consumer PET waste in less than 10 minutes. Life cycle assessment indicates that BHET produced by ZnO-catalyzed glycolysis has lower global warming potential compared to petrochemical-based production and homogeneously-catalyzed glycolysis.
Article
Materials Science, Ceramics
Camila Stockey Erhardt, Waleska Guaglianoni, Ana Paula Garcia, Tania Maria Basegio, Carlos Perez Bergmann
Summary: Ultra-rapid microwave-assisted hydrothermal synthesis of zinc oxide nanoparticles doped with gallium was performed. The synthesis time and Ga doping facilitated the production of ZnO nanoparticles with nanorods morphology and improved properties. The successful insertion of Ga into the ZnO lattice was confirmed, and the presence of defects as a result of doping was observed. The band gap range found in the doped ZnO nanoparticles increased their potential for optical applications.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Guangxu Xu, Jie Zhao, Jinshi Yuan, Yuling Zhao, Hang Yin, Fengyun Wang, Jie Tang, Jianmin Zhang
Summary: The study successfully prepared three-dimensional hierarchical cobalt oxide/reduced graphene oxide composites via a one-pot microwave assisted hydrothermal process, investigating the effects of rGO content on the composite material's performance. By adding graphene oxide, it was found that the size of the cobalt oxide nanoparticles could be effectively controlled, leading to significant impact on the electrochemical properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Jianyu Wang, Yangsi Liu, Xiaoli Xi, Zuoren Nie
Summary: A facile microwave-assisted precipitation method was used to synthesize hierarchical WO3·H2O with controlled morphologies by tuning the concentration of urea. The as-synthesized WO3·H2O exhibited excellent selective adsorption capacity for different model dyes, especially for methylene blue (MB). The adsorption kinetics and adsorption isotherm could be described by the pseudo-second-order kinetic model and Langmuir adsorption isotherm model, respectively. The maximum uptake capacity of the flower-like WO3·H2O for MB was 478.34 mg g(-1) under neutral pH, surpassing previous literature reports.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Nanoscience & Nanotechnology
Yan Song, Fuxing Yin, Chengwei Zhang, Weibing Guo, Liying Han, Ye Yuan
Summary: This study successfully prepared ultrafine zinc oxide nanoparticles supported on three-dimensional ordered mesoporous carbon spheres, showing excellent microwave absorption performance.
NANO-MICRO LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Tatyana Sergeevna Sazanova, Leonid Alexandrovich Mochalov, Alexander Alexandrovich Logunov, Mikhail Alexandrovich Kudryashov, Diana Georgievna Fukina, Maksim Anatolevich Vshivtsev, Igor Olegovich Prokhorov, Pavel Andreevich Yunin, Kirill Alexandrovich Smorodin, Artem Anatolevich Atlaskin, Andrey Vladimirovich Vorotyntsev
Summary: Zinc oxide nanoparticles were synthesized using plasma-enhanced chemical vapor deposition (PECVD) and their size, morphology, and structural properties were studied. The zinc source temperature and reactor temperature were found to affect the shape and size of the nanoparticles.
Review
Chemistry, Physical
Zihan Wang, Yiyang Li, Chen Wu, Shik Chi Edman Tsang
Summary: Photocatalysis as a promising approach for solar energy conversion has attracted great attention, but its practical application is limited due to poor performance. External electric/magnetic fields have emerged as an effective strategy to enhance photocatalytic efficiency, but there is a need for further research on their impacts and mechanisms.
Review
Chemistry, Multidisciplinary
Xing Lv, Haodong Sha, Zi Ye, Yi Wang, Bizeng Mao
Summary: This review summarizes the current applications of nanotechnology in plant tissue culture and production and discusses the potential mechanisms for improving plant growth and stress resistance.
ENVIRONMENTAL SCIENCE-NANO
(2023)
Article
Materials Science, Ceramics
Meisam Hasanpoor, Mahmood Aliofkhazraei, Hamid H. Delavari
CERAMICS INTERNATIONAL
(2016)
Article
Materials Science, Ceramics
Houman Fakhr Nabavi, Mahmood Aliofkhazraei, Meisam Hasanpoor, Amir Seyfoori
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2016)
Article
Materials Science, Ceramics
Meisam Hasanpoor, Mahmood Aliofkhazraei, Massoud Hosseinali
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2017)
Article
Materials Science, Ceramics
A. Hajizadeh, M. Aliofkhazraei, M. Hasanpoor, E. Mohammadi
CERAMICS INTERNATIONAL
(2018)
Article
Chemistry, Physical
Meisam Hasanpoor, Mojtaba Eftekharnia, Thushan Pathirana, Urbi Pal, Robert Kerr, Maria Forsyth, Patrick C. Howlett
Summary: This study examines the relationship between electrolyte chemistry and separator properties, as well as their impact on lithium metal cycling behavior. Different separators were characterized in ionic liquid-based electrolytes to understand their interactions and effects on electrolyte transport properties. The research suggests that choosing appropriate separator and electrolyte materials can enhance the stability and durability of lithium metal anodes.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Mojtaba Eftekharnia, Meisam Hasanpoor, Maria Forsyth, Robert Kerr, Patrick C. Howlett
ACS APPLIED ENERGY MATERIALS
(2019)
Article
Nanoscience & Nanotechnology
Meisam Hasanpoor, Houman Fakhr Nabavi, Mahmood Aliofkhazraei
JOURNAL OF NANOSTRUCTURES
(2017)
Proceedings Paper
Nanoscience & Nanotechnology
M. Hasanpoor, M. Aliofkhazraei, H. Delavari
5TH INTERNATIONAL BIENNIAL CONFERENCE ON ULTRAFINE GRAINED AND NANOSTRUCTURED MATERIALS, UFGNSM15
(2015)