Article
Chemistry, Physical
Ibrahim F. Waheed, Omer Yasin Thayee Al-Janabi, Peter J. S. Foot
Summary: A novel low bandgap MgFe2O4-CuO/graphene oxide nanocomposite was used as a magnetic nanophotocatalyst to efficiently degrade methylene blue in wastewater, showing good recyclability.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Materials Science, Multidisciplinary
Zein K. Heiba, Abdallah A. Shaltout, Sameh I. Ahmed, Eman Alzahrani, Hamdy H. Wahba, M. A. Deyab, Mohamed Bakr Mohamed
Summary: Solid solutions of (1-x)ZnMn2O4/(x)MgFe2O4 (x=0.0, 0.1, 0.5, 0.9, 1.0) were successfully obtained via a sol-gel method, with the phase structure confirmed by X-ray analysis. The composition of different elements and nano-nature of the samples were identified using FTIR and electron microscopy. UV-Vis spectroscopy and magnetic measurements were utilized to study the optical and magnetic properties of the solid solutions, while cyclic voltammetry and galvanostatic charge-discharge studies were conducted to evaluate supercapacitor performance.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Chemistry, Physical
T. A. Taha, Moataz G. Fayed, Saad G. Mohamed
Summary: MgFe2O4/SrTiO3 and MgFe2O4/SiO2 nanocomposites were prepared by a modified sol-gel auto combustion method. The structures and properties of the composites were characterized using X-ray diffraction and Fourier transform infrared spectroscopy. The electrochemical tests showed that MgFe2O4/SrTiO3 nanocomposite had higher coulombic efficiency and larger discharge capacity, and exhibited better stability and capacity retention in high-rate performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Diego H. de Hoyos-Sifuentes, Perla J. Resendiz-Hernandez, Jose A. Diaz-Guillen, Roca M. Ochoa-Palacios, Gerardo Altamirano-Guerrero
Summary: The present study synthesized MgFe2O4 nanoparticles with different molar ratios of Mg/Fe by sol-gel and coated them with polyethylene glycol (PEG) using the agitation method. The synthesized nanoparticles and nanocomposites were characterized using various techniques, including XRD, TGA, DTA, SEM-EDX, TEM, VSM, and FTIR. The results showed the structural and morphological properties of the nanoparticles and demonstrated their potential for biomedical applications.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Chemistry, Inorganic & Nuclear
S. Balamurugan, R. Ragasree, B. C. Brightlin, T. S. Gokul Raja
Summary: This study focused on the characterization of MgFe2O4 nanomaterials prepared by ball milling and annealing at different temperatures. The results showed variations in structural properties and magnetization behavior of the materials, which could impact their potential applications in magnetic fluid and NIR pigment applications.
JOURNAL OF CLUSTER SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Zein K. Heiba, Mohamed Bakr Mohamed, Ah. Abd Ellatief, A. El-Denglawey, Ali Badawi
Summary: MgFe2O4 and MgFe2O4/(1-x)MnO-xCdO samples were synthesized and their structural and optical properties were investigated. The incorporation of Mn and Cd ions led to changes in lattice parameters and particle size, as well as variations in the optical band gaps. The samples showed weak ferrimagnetic behavior with an increase in saturation magnetization and a decrease in coercivity.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Multidisciplinary Sciences
Saleheh Sanaei-Rad, Mohammad Ali Ghasemzadeh, Seyyed Mohammad Hossein Razavian
Summary: This research successfully synthesized a nanocomposite of ZIF-8/GO/MgFe2O4 with high loading efficiency of tetracycline antibiotic drug, which showed good release profile and antibacterial activity on both gram-positive and gram-negative bacteria. The structure of synthesized materials was confirmed using various spectroscopic methods.
SCIENTIFIC REPORTS
(2021)
Article
Chemistry, Physical
Mustafa Muradov, Mahammad Baghir Baghirov, Goncha Eyvazova, Lala Gahramanli, Sevinj Mammadyarova, Gunel Aliyeva, Elchin Huseynov, Mahammadali Abdullayev
Summary: Graphene oxide (GO) was prepared and mixed with polyvinyl alcohol (PVA) at different weight concentrations. The GO and GO/PVA nanocomposites were exposed to gamma radiation at different doses, leading to structural, optical, and morphological changes. XRD, TEM, EDS, and UV-Vis spectroscopy were used to analyze these changes. The study observed decomposition and oxidation of residual graphite under the influence of gamma radiation, and a decrease in the band gap value with increasing radiation dose.
RADIATION PHYSICS AND CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Mehrnaz Bitaraf, M. E. Ghazi, Morteza Izadifard
Summary: Samples of MgFe2O4 (MFO)(x)-BaTiO3 (BTO)((100-x)) (x = 10, 20, 30, 40, 50) were synthesized using a sol-gel process. X-ray diffraction data showed that all composites had tetragonal phase for BTO and spinel phase for MFO. FESEM analysis revealed that as the concentration of MgFe2O4 increased, the ferrite particles became more agglomerated with an irregular shape. Hysteresis loops (M-H) measurements indicated an increase in saturation magnetization with higher MFO content. The UV-visible spectra showed that the band gap energies ranged from 2.17-2.70 eV, with a decrease in dielectric constant and an increase in dielectric tangent loss as MFO content increased. Nyquist plots also demonstrated a larger diameter semicircle, indicating higher resistivity, with increasing MFO phase in the composites.
JOURNAL OF MATERIALS RESEARCH
(2023)
Article
Chemistry, Physical
K. Ajith, Archana Sumohan Pillai, I. V. Muthu Vijayan Enoch, A. Brusly Solomon
Summary: The experimental study measured the thermophysical properties of a novel disk-shaped magnesium ferrite / water-based ferrofluids at different volume fractions and magnetic field conditions, finding that the magnetic field has an impact on the thermal conductivity, viscosity, and density of the ferrofluid.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Chemistry, Physical
Saeid Taghavi Fardood, Farzaneh Moradnia, Reza Forootan, Rouzbeh Abbassi, Salman Jalalifar, Ali Ramazani, Mika Sillanpaa
Summary: A new, low-cost, and green sol-gel route was reported for synthesizing MgFe2O4@CoCr2O4 magnetic nanocomposite with high photocatalytic efficiency under visible light. Various analytical techniques were used to characterize the synthesized nanocomposite, confirming its structural integrity, efficiency in dye degradation, and ease of separation. The magnetic nanocomposite showed high degradation performance for Reactive Blue 222 dye, with potential applications for environmental remediation.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2022)
Article
Physics, Multidisciplinary
Kh Roumaih
Summary: This study discusses the experimental results of the electrical and magnetic properties of NiF@MgF and ZnF@MgF, showing their varying conductive and magnetic behaviors at different temperatures with potential applications in electronic devices.
Article
Materials Science, Ceramics
Zakie Anajafi, Mahmoud Naseri, Azam Hashemi, Giovanni Neri
Summary: CeFeO3 nanoparticles were synthesized by a fast microwave-thermal treatment method in the presence of PVP. The synthesized nanoparticles exhibited different crystallite sizes and weak ferromagnetic behavior. The optical band gap of the CeFeO3 nanoparticles decreased with the calcination temperature. Under visible light, the CeFeO3 nanoparticles showed good photocatalytic activity in the degradation of methylene blue, with higher activity observed at lower calcination temperatures. The CeFeO3/GO nanocomposite demonstrated excellent photocatalytic efficiency, making it a potential candidate for highly efficient degradation of organic dyes under visible light radiation.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Electrical & Electronic
Ankul Chauhan, Swaleha Naseem, Jitendra Bahadur, B. R. Singh, Mohd. Shoeb, Shahid Husain, Wasi Khan
Summary: A cost-effective sol-gel method was used to synthesize graphene oxide (GO)/Mn3O4 nanocomposite, which showed good performance in XRD, FTIR, UV-visible spectroscopy, and electrochemical study, confirming its potential applications in supercapacitors.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Materials Science, Multidisciplinary
T. Suresh Kumar, G. Sriramulu, P. Raju, T. Ramesh, K. Praveena, S. Katlakunta
Summary: Microwave hydrothermal method was used to synthesize Ce3+ doped MgFe2-xCexO4 nanoparticles, which were characterized by various techniques. The synthesized nanoparticles exhibited cubic spinel structure with good magnetic and dielectric properties. Ce3+ doping also caused variation in the optical bandgap.
ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY
(2023)
