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Journal articles on the topic 'MgFe2O4'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Huang, Jian Hua, Jing Dong, Zu Lan Liu, Yi Ping Liu, and Da Yang Wu. "Degradation of Dyes by H₂O₂with Activated Charcoal Supported MgFe₂O₄ under Microwave Irradiation." Advanced Materials Research 1004-1005 (August 2014): 972–77. http://dx.doi.org/10.4028/www.scientific.net/amr.1004-1005.972.

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In this study, MgFe2O4is produced by the chemical coprecipitation method and supported by activated charcoal (C/MgFe2O4). It is observed by the FT-IR spectra and the true density. The dyeing wastewater modeled by dye Reactive Brilliant Red X-3B solution is dealt with H2O2on the radiation of microwave and used the C/MgFe2O4as adsorbent and catalyst. Tests are designed by the response surface methodology (RSM) to annalyze and optimize the process. The optimum condition is: 3 gram of C/MgFe2O4, the pH of 5, 1.1mL H202, the microwave power of 150W. The results say that C/MgFe2O4is very good on cat

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2

Chen, Run, Gang Li, Weiyang Bai, Shuang Bao, and Zhiliang Cheng. "Synthesis of Rod-Like Porous MgFe2O4 Architectures as a Catalyst for Ammonium Perchlorate Thermal Decomposition." Nano 13, no. 06 (2018): 1850069. http://dx.doi.org/10.1142/s1793292018500698.

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The development of highly active catalysts for the pyrolysis of ammonium perchlorate (AP) is of considerable importance for AP-based composite solid propellant. In the present study, we produced porous MgFe2O4 architectures by using a facile two-step strategy. A rod-like precursor of MgFe2(C2O[Formula: see text]O (diameter: 0.5–2.5[Formula: see text][Formula: see text]m; length: 2–15[Formula: see text][Formula: see text]m) was fabricated under solvothermal conditions using metal sulfates as raw materials and oxalic acid as the precipitant. Subsequently, porous MgFe2O4 architectures were obtain

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3

Nagarajan, Veerappan, Arunachalam Thayumanavan, and Ramanathan Chandiramouli. "Magnesium ferrite nanostructures for detection of ethanol vapours - a first-principles study." Processing and Application of Ceramics 11, no. 4 (2017): 296–303. http://dx.doi.org/10.2298/pac1704296n.

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The adsorption behaviour and electronic properties of ethanol vapour on MgFe2O4 ceramic nanostructures are studied using density functional theory technique. The structural stability of MgFe2O4 nanostructure is determined with the help of formation energy. The adsorption behaviour of ethanol molecules on MgFe2O4 base material is analysed in terms of average energy gap variation, Mulliken charge transfer, band gap and adsorption energy. The most prominent adsorption sites of ethanol vapours on MgFe2O4 nanostructure are investigated at atomistic level. The density of states spectrum reveals the

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4

Shetty, Krushitha, B. S. Prathibha, Dinesh Rangappa, K. S. Anatharaju, H. P. Nagaswarupa, and S. C. Prashantha. "Fabrication of MgFe2O4-ZnO Nanocomposites for Photocatalysis of Organic Pollutants under Solar Light Radiation." Asian Journal of Chemistry 31, no. 12 (2019): 2995–3003. http://dx.doi.org/10.14233/ajchem.2019.22368.

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MgFe2O4, ZnO and MgFe2O4-ZnO samples were successfully prepared through low temperature solution combustion route. The structural and morphological investigation were accomplished by PXRD, HRSEM, UV-visible and FTIR. The PXRD results point towards the reduced size of synthesized nanocomposites, which was further confirmed by HRSEM studies. Optical properties of the prepared samples were examined by UV-visible spectroscopy. The band gap seems to be widened for prepared nanocomposites compared to pure MgFe2O4. The photocatalytic degradation of methylene blue under sunlight was superior in contra

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5

Buzko, Vladimir, Sergey Ivanin, Alexander Goryachko, Ivan Shutkin, Polina Pushankina, and Iliya Petriev. "Magnesium Spinel Ferrites Development for FDM 3D-Printing Material for Microwave Absorption." Processes 11, no. 1 (2022): 60. http://dx.doi.org/10.3390/pr11010060.

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The magnesium nanosized ferrite powder with formula MgFe2O4 was synthesized via a pyrochemical sol–gel glycine–nitrate method and annealed consistently at temperatures of up to 1300 °C. The MgFe2O4 ferrite samples’ microstructure was studied by SEM and XRD methods. According to the results of the studies, the increase in MgFe2O4 nanoparticles size from about 15 nm to micron-sized particles was observed when increasing annealing temperatures. The DC electrical conductivity of MgFe2O4 also clearly shows the change in conduction behavior of samples with increased calcination temperatures. The ele

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6

Al-Gethami, Wafa, Noha Al-Qasmi, Sameh H. Ismail, and Ahmed H. Sadek. "QCM-Based MgFe2O4@CaAlg Nanocomposite as a Fast Response Nanosensor for Real-Time Detection of Methylene Blue Dye." Nanomaterials 13, no. 1 (2022): 97. http://dx.doi.org/10.3390/nano13010097.

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Methylene blue (MB) dye is a common colorant used in numerous industries, particularly the textile industry. When methylene blue is discharged into water bodies without being properly treated, it may seriously damage aquatic and human life. As a result, a variety of methods have been established to remove dyes from aqueous systems. Thanks to their distinguishing features e.g., rapid responsiveness, cost-effectiveness, potential selectivity, portability, and simplicity, the electrochemical methods provided promising techniques. Considering these aspects, a novel quartz crystal microbalance nano

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7

Zhang, Zhicheng, Wei Cai, Shaopeng Rong, Hongxia Qu, and Huifang Xie. "Hollow CuFe2O4/MgFe2O4 Heterojunction Boost Photocatalytic Oxidation Activity for Organic Pollutants." Catalysts 12, no. 8 (2022): 910. http://dx.doi.org/10.3390/catal12080910.

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P-n heterojunction-structured CuFe2O4/MgFe2O4 hollow spheres with a diameter of 250 nm were synthesized using a template-free solvothermal method, and time-dependent morphological studies were carried out to investigate the hollow formation mechanism. The CuFe2O4/MgFe2O4 with a molar ratio of 1:2 (Cu:Mg) had the highest degradation efficiency with the model organic dye Acid Orange 7, with a degradation rate of 91.96% over 60 min. The synthesized CuFe2O4/MgFe2O4 nanocomposites were characterized by XRD, TEM, HRTEM, UV-vis spectroscopy, Mott–Schottky, and EIS. Due to the synthesis of the p-n het

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8

Irfan, Muhammad, Fareeda Zaheer, Humaira Hussain, et al. "Kinetics and Adsorption Isotherms of Amine-Functionalized Magnesium Ferrite Produced Using Sol-Gel Method for Treatment of Heavy Metals in Wastewater." Materials 15, no. 11 (2022): 4009. http://dx.doi.org/10.3390/ma15114009.

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This study is focused on the kinetics and adsorption isotherms of amine-functionalized magnesium ferrite (MgFe2O4) for treating the heavy metals in wastewater. A sol-gel route was adopted to produce MgFe2O4 nanoparticles. The surfaces of the MgFe2O4 nanoparticles were functionalized using primary amine (ethanolamine). The surface morphology, phase formation, and functionality of the MgFe2O4 nano-adsorbents were studied using the SEM, UV-visible, FTIR, and TGA techniques. The characterized nanoparticles were tested on their ability to adsorb the Pb2+, Cu2+, and Zn2+ ions from the wastewater. Th

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9

Cao, Bowen, Nan Wang, and Min Chen. "Synergetic Treatment of BOF Slag and Copper Slag via Oxidation–Magnetic Separation for MgFe2O4 Preparation and Non-Magnetic Slag Stabilization." Recycling 10, no. 3 (2025): 81. https://doi.org/10.3390/recycling10030081.

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This study proposes a synergistic treatment method for BOF slag and copper slag via oxidation–magnetic separation, with the dual goals of preparing MgFe2O4 magnetic material and stabilizing the non-magnetic slag. The effects of copper slag addition, the oxidation temperature and the oxidation time on the phase transformation and MgFe2O4 morphology during the oxidation process are investigated. The results show that copper slag addition can release the simple iron oxides of FeO and Fe2O3 from iron-containing phases from BOF slag and copper slag, promoting the synthesis of MgFe2O4. Furthermore,

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10

Taei, Masoumeh, Masoud Fouladgar, Foroozan Hasanpour, and Fatemeh Hasheminasab. "Application of Mg-Al-LDH@MgFe2O4 Nanocomposite Supported on Gold Micron-Dendrites as an Efficient Electrocatalyst for Ethanol Oxidation." Nano 15, no. 03 (2020): 2050037. http://dx.doi.org/10.1142/s179329202050037x.

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Mg-Al-LDH@MgFe2O4 nanocomposite was synthesized and was applied to enhance efficiency of gold micron-dendrites/glassy carbon electrode (Mg-Al-LDH@MgFe2O4/AuNDs/GCE) for oxidation of ethanol. Based on the results, Mg-Al-LDH@MgFe2O4/AuNDs showed a current density of 29.4[Formula: see text]mA cm[Formula: see text], which was 1.6 times higher than that on the surface of AuNDs/GCE. Also, long-term stability of the studied electrode showed that the nanocomposite improves CO-poisoning tolerance of the AuNDs. Accordingly, the Mg-Al-LDH@MgFe2O4/AuNDs catalyst exhibits an excellent potential for applica

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11

Becker, Anna, Kristin Kirchberg, and Roland Marschall. "Magnesium Ferrite (MgFe2O4) Nanoparticles for Photocatalytic Antibiotics Degradation." Zeitschrift für Physikalische Chemie 234, no. 4 (2020): 645–54. http://dx.doi.org/10.1515/zpch-2019-1430.

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AbstractRemoval of drug residuals in waste water by easy-separable catalysts is of fundamental interest for clean water provision by photocatalytic water remediation. Here, we present our studies to use the ferrimagnetic earth-abundant absorber MgFe2O4, prepared by microwave-assisted synthesis, for the photocatalytic removal of methylene blue and tetracycline from model solutions under dark and sunlight conditions. The surface of MgFe2O4 has a strong influence on the tetracycline removal, while more than 75% tetracycline degradation can already be achieved in 2 h with unmodified MgFe2O4. Using

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12

Nguyen, Loan T. T., Lan T. H. Nguyen, Nhuong Chu Manh, et al. "A Facile Synthesis, Characterization, and Photocatalytic Activity of Magnesium Ferrite Nanoparticles via the Solution Combustion Method." Journal of Chemistry 2019 (March 25, 2019): 1–8. http://dx.doi.org/10.1155/2019/3428681.

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In this study, we adopted the solution combustion method to synthesize magnesium ferrite (MgFe2O4) using urea as the fuel. Various techniques including TGA, XRD, SEM, TEM, FTIR, UV-Vis DRS, and EDS were employed to characterize the synthesized MgFe2O4 nanoparticles. The XRD analysis revealed that single-phase MgFe2O4 was formed at a calcination temperature of at 500–600°C for 3 hours in the absence of an intermediate phase. TEM analysis also revealed the formation of monodisperse magnesium ferrite nanoparticles, averaged at 30 nm in size. The photocatalytic activity of the synthesized MgFe2O4

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13

Ajith, K., Archana Sumohan Pillai, I. V. Muthu Vijayan Enoch, and A. Brusly Solomon. "Thermal Conductivity Analysis of Ethylene Glycol/H<sub>2</sub>O- Based MgFe<sub>2</sub>O<sub>4 </sub>Ferrofluid." Materials Science Forum 1048 (January 4, 2022): 83–88. http://dx.doi.org/10.4028/www.scientific.net/msf.1048.83.

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The current investigation aims to synthesize MgFe2O4 magnetic nanoparticle and measure the thermal conductivity of MgFe2O4 ferrofluid. Prepared MgFe2O4 nanoparticle's structural characterization, the concentration of constituents, and surface morphology were analyzed using XRD, EDAX, and TEM respectively. This study also analyses the influence of magnetic flux on the thermal conductivity of MgFe2O4/ EG: H2O (60:40) based ferrofluids formed by the two-step method. Thermal conductivity of ferrofluid measured at different volume fractions (ranging from 0.01% to 0.20%) show that thermal conductivi

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14

Sukandar, Dede, Adawiah Adawiah, Saeful Rohman, et al. "Synthesis of MgFe2O4 Nanoparticles and its Application for Photodegradation of Methylene Blue." Bulletin of Chemical Reaction Engineering & Catalysis 19, no. 4 (2024): 548–59. http://dx.doi.org/10.9767/bcrec.20222.

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Methylene blue wastewater from the paper, clothing, and textile industries can adversely affect aquatic ecosystems if improperly treated. One method to treat methylene blue pollutants in sewage is through photocatalysis techniques using magnesium ferrite (MgFe2O4) nanoparticle-based semiconductors. The MgFe2O4 is effective for methylene blue degradation because it is stable in aqueous systems, inexpensive, and has good photocatalytic activity. This study aims to synthesize MgFe2O4 nanoparticles with pumpkin seed extract (Cucurbita moschata) as a capping agent through a hydrothermal method. Cha

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15

Berbenni, Vittorio, Amedeo Marini, Chiara Milanese, and Giovanna Bruni. "The Effect of Mechanical Activation on the Synthesis of MgFe2O4 from Mixtures of MgCO3· Mg(OH)2 · xH2O and FeC2O4 ·2H2O." Zeitschrift für Naturforschung B 63, no. 9 (2008): 1052–56. http://dx.doi.org/10.1515/znb-2008-0906.

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The synthesis of MgFe2O4 has been attempted starting from mixtures of 4MgCO3 ·Mg(OH)2 · xH2O and FeC2O4 · 2H2O by combining mechanical activtion of the mixtures (by high-energy milling) with annealing at temperatures between 673 and 1073 K. TG measurements of mixtures of the precursors have been performed to assess the reaction mechanism, and to determine the minimum temperature where the two binary oxides (MgO and Fe2O3) are formed. X-Ray powder patterns of the milled / annealed mixtures have shown that MgFe2O4 is formed in an amorphous state already upon thermal treatment at 673 K, while ann

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16

Köferstein, Roberto. "Fine-grained BaTiO3-MgFe2O4 composites prepared by a Pechini-like process." Journal of Alloys and Compounds 638 (September 15, 2015): 141–47. https://doi.org/10.1016/j.jallcom.2015.03.082.

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The synthesis of BaTiO3-MgFe2O4 composite powders by a Pechini-like one-pot process and resulting ceramic bodies is described herein. Phase formation during the decomposition of homogenous (Ba,Ti,Fe,Mg)-gels was monitored up to 1200 °C. Composite powders consisting of BaTiO3 and MgFe2O4 were obtained after decomposition at 700 °C for 1 h resulting in crystallite sizes of about 10 nm. The shrinkage and sintering behaviour of compacted powders were examined. Sintering at > 1200 °C leads to the formation of hexagonal BaTiO3 only for composites with a MgFe2O4 content of > 30 wt.%

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17

Zhang, Lina, Jiarui Lu, and Baixiong Liu. "Hierarchically Ordered Macroporous–Mesoporous (HOM-m) MgFe2O4/MgO for Highly Efficient Adsorption of Ce(III) and La(III): Experimental Study and DFT Calculation Analysis." Separations 11, no. 12 (2024): 333. http://dx.doi.org/10.3390/separations11120333.

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This study employed a template method to prepare a highly ordered and interconnected porous HOM-m MgFe2O4/MgO rare earth ion-efficient adsorbent. The specific surface area of the adsorbent was as high as 130 m2/g, with saturation adsorption capacities for Ce(Ⅲ) and La(Ⅲ) of 5689.69 mg/g and 2123.50 mg/g, respectively. The adsorbent exhibited superparamagnetism with efficient and rapid separation from an aqueous solution using a magnet. The adsorption results indicated that the adsorption mechanism of HOM-m MgFe2O4/MgO towards Ce(III) and La(III) primarily involved the ion exchange and redox re

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18

Zolkepli, M. F. A., Rozidawati Awang, and Zalita Zainuddin. "Effect of Sintering Temperature on Properties of Multiferroic BaFe₁₂O₁₉/MgFe₂O₄/BaTiO₃ Composites." Materials Science Forum 846 (March 2016): 410–15. http://dx.doi.org/10.4028/www.scientific.net/msf.846.410.

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In this paper, the structural, magnetic and electrical properties of multiferroic BaFe12O19/MgFe2O4/BaTiO3 composites have been studied. BaFe12O19/MgFe2O4/BaTiO3 composites were synthesized by using the conventional solid state reaction technique and sintered at different temperatures. XRD analysis confirmed the existence of hexagonal BaFe12O19, cubic spinel MgFe2O4 and tetragonal BaTiO3 for ferrites and ferroelectric phases, respectively. The suitable sintering temperature for preparing BaFe12O19/MgFe2O4/BaTiO3 composites is between 1000 °C and 1050 °C. SEM analysis showed that as a whole the

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19

Alavinia, Sedigheh, Ramin Ghorbani-Vaghei, Ramin Ghiai, and Alireza Gharehkhani. "Cu(ii) immobilized on poly(guanidine-sulfonamide)-functionalized Bentonite@MgFe₂O₄: a novel magnetic nanocatalyst for the synthesis of 1,4-dihydropyrano[2,3-c]pyrazole." RSC Advances 13, no. 16 (2023): 10667–80. http://dx.doi.org/10.1039/d3ra00049d.

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In this paper, we aim at synthesizing a new nanocomposite material in which bentonite acts as a nucleation site for MgFe2O4 nanoparticles precipitation in the attendance of an external magnetic field (MgFe2O4@Bentonite).

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20

Manivasagan, Panchanathan, Sekar Ashokkumar, Ala Manohar, et al. "Biocompatible Calcium Ion-Doped Magnesium Ferrite Nanoparticles as a New Family of Photothermal Therapeutic Materials for Cancer Treatment." Pharmaceutics 15, no. 5 (2023): 1555. http://dx.doi.org/10.3390/pharmaceutics15051555.

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Novel biocompatible and efficient photothermal (PT) therapeutic materials for cancer treatment have recently garnered significant attention, owing to their effective ablation of cancer cells, minimal invasiveness, quick recovery, and minimal damage to healthy cells. In this study, we designed and developed calcium ion-doped magnesium ferrite nanoparticles (Ca2+-doped MgFe2O4 NPs) as novel and effective PT therapeutic materials for cancer treatment, owing to their good biocompatibility, biosafety, high near-infrared (NIR) absorption, easy localization, short treatment period, remote controllabi

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Chai, Yan, Mei Jie Zhang, and Xiang Cheng Li. "Application of Electromagnetic Field Theory in the Study of Iron-Rich Slag Resistance Mechanism of Low Carbon MgO-C Refractories." Key Engineering Materials 726 (January 2017): 450–54. http://dx.doi.org/10.4028/www.scientific.net/kem.726.450.

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Electromagnetic field (EMF) can promote the reaction between the Fe/Mn ion in slag and MgO-C refractories to form Mn-doped MgFe2O4 spinel. In order to further study the morphology and characteristics of Mn-doped MgFe2O4 spinel, the experiments were respectively carried out in medium-frequency induction furnace and resistance furnace. MgO-C refractories containing 6 wt.% carbon and iron-rich slag containing 53.62 wt.% Fe2O3 were used. The results show that the penetration layer in the slag line under EMF is obvious and the reduced Fe from FexO is distributed homogeneously in this layer. However

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22

Wang, Chanchan, Fen Wang, and Jianjun Shi. "FeOx-Modified Ultrafine Platinum Particles Supported on MgFe2O4 with High Catalytic Activity and Promising Stability toward Low-Temperature Oxidation of CO." Molecules 29, no. 5 (2024): 1027. http://dx.doi.org/10.3390/molecules29051027.

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Catalytic oxidation is widely recognized as a highly effective approach for eliminating highly toxic CO. The current challenge lies in designing catalysts that possess exceptional low-temperature activity and stability. In this work, we have prepared ultrafine platinum particles of ~1 nm diameter dispersed on a MgFe2O4 support and found that the addition of 3 wt.% FeOx into the 3Pt/MgFe2O4 significantly improves its activity and stability. At an ultra-low temperature of 30 °C, the CO can be totally converted to CO2 over 3FeOx-3Pt/MgFe2O4. High and stable performances of CO-catalytic oxidation

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23

Rai, Abdelwahab, Sara Oumenoune Tebbi, Chaima Ben Mahfoud, et al. "Innovative Antibacterial Air Filters Impregnated with Photocatalytic MgFe2O4 Nanoparticles for Improved Microbiological Air Quality." Catalysts 15, no. 4 (2025): 365. https://doi.org/10.3390/catal15040365.

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Over time, nanoparticles’ chemistry has shown exceptional ability to solve a wide range of problems in various fields, including the control of microbiological air quality in buildings. Herein, magnesium ferrite (MgFe2O4) was synthesized using coprecipitation, then characterized using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Brunauer–Emmett–Teller (BET), scanning electron microscopy (SEM), Transmission Electron Microscopy (TEM) and photoelectron spectroscopy (XPS). MgFe2O4 nanoparticles were then assessed for their ability to inhibit Escherichia coli ATCC 8739 g

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Chinh. "STRUCTURE, MORPHOLOGICAL, MAGNETIC AND OPTICAL PROPERTIES OF CuxMg1-xFe2O4 (x = 0, 0.5, 1) NANO FERRITES SYNTHESIZED BY CO-PRECIPITATION METHOD." Journal of Military Science and Technology, no. 72A (May 10, 2021): 46–54. http://dx.doi.org/10.54939/1859-1043.j.mst.72a.2021.46-54.

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CuxMg1.xFe2O4 nanoparticles were successfully synthesized by co-precipitation. The samples were calcined at 900 oC for 3 h and X-ray diffraction analysis showed that Cu0.5Mg0.5Fe2O4 had a single phase cubic spinel structure, while formation of secondary phase of Fe2O3 was observed in XRD patterns of CuFe2O4, MgFe2O4. The saturation magnetization (Ms) of Cu0.5Mg0.5Fe2O4 is in between the saturation magnetization values of CuFe2O4 and MgFe2O4 nanoparticles, CuFe2O4 is a ferromagnetic material, while MgFe2O4 and Cu0.5Mg0.5Fe2O4 show superparamagnetic behavior. The synthesized spinel ferrites were

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25

Zu, Yanqing, Yaqi Zhao, Kangzhen Xu, Yao Tong, and Fengqi Zhao. "Preparation and comparison of catalytic performance for nano MgFe2O4, GO-loaded MgFe2O4 and GO-coated MgFe2O4 nanocomposites." Ceramics International 42, no. 16 (2016): 18844–50. http://dx.doi.org/10.1016/j.ceramint.2016.09.030.

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Zeng, Xue, Zhipeng Hou, Jiaqi Ju, Lei Gao, Junwei Zhang, and Yong Peng. "The Cation Distributions of Zn-doped Normal Spinel MgFe2O4 Ferrite and Its Magnetic Properties." Materials 15, no. 7 (2022): 2422. http://dx.doi.org/10.3390/ma15072422.

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Determining the exact occupation sites of the doping ions in spinel ferrites is vital for tailoring and improving their magnetic properties. In this study, the distribution and occupation sites of cations in MgFe2O4 and Zn-doped MgFe2O4 ferrite are imaged by Cs-STEM. The experimental STEM images along [001], [011] and [111] orientations suggest that the divalent Mg2+ cations occupy all A sites, and the trivalent Fe3+ cations occupy all B sites in MgFe2O4 ferrite prepared by electrospinning, which is consistent with the normal spinel structure. We further clarify that the preferred sites of dop

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de Hoyos-Sifuentes, Diego H., Perla J. Reséndiz-Hernández, José A. Díaz-Guillén, Rocío M. Ochoa-Palacios, and Gerardo Altamirano-Guerrero. "Synthesis and characterization of MgFe2O4 nanoparticles and PEG-coated MgFe2O4 nanocomposite." Journal of Materials Research and Technology 18 (May 2022): 3130–42. http://dx.doi.org/10.1016/j.jmrt.2022.03.117.

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Kaur Ubhi, Manpreet, Manpreet Kaur, Dhanwinder Singh, et al. "Hierarchical Nanoflowers of MgFe2O4, Bentonite and B-,P- Co-Doped Graphene Oxide as Adsorbent and Photocatalyst: Optimization of Parameters by Box–Behnken Methodology." International Journal of Molecular Sciences 23, no. 17 (2022): 9678. http://dx.doi.org/10.3390/ijms23179678.

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In the present study, nanocomposites having hierarchical nanoflowers (HNFs) -like morphology were synthesized by ultra-sonication approach. HNFs were ternary composite of MgFe2O4 and bentonite with boron-, phosphorous- co-doped graphene oxide (BPGO). The HNFs were fully characterized using different analytical tools viz. X-ray photoelectron spectroscopy, scanning electron microscopy, energy dispersion spectroscopy, transmission electron microscopy, X-ray diffraction, vibrating sample magnetometry and Mössbauer analysis. Transmission electron micrographs showed that chiffon-like BPGO nanosheets

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Ivanets, A. I., V. G. Prozorovich, M. Yu Roshchina, V. Srivastava, and M. Sillanpää. "Unusual behavior of MgFe2O4 during regeneration: desorption versus specific adsorption." Water Science and Technology 80, no. 4 (2019): 654–58. http://dx.doi.org/10.2166/wst.2019.307.

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Abstract The reusability of spent adsorbents is the most important characteristic for their practical application. The process of MgFe2O4 regeneration after methylene blue (MB) adsorption was studied. The effect of the nature (HCl, HNO3, and MgCl2) and the concentration (10−3–10−1 M) of regeneration agents was established. All the regeneration agents at 10−3 and 10−2 M had high efficiency and adsorption capacity recovery reached 80–90%, whereas for 10−1 M concentration the adsorption efficiency was in the range of 4.5–36.2%. It was shown that the concentration of desorbed MB was much less than

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M., Penchal Reddy, B. Zhou X., Huang Q., and Ramakrishna Reddy R. "Synthesis and Characterization of Ultrafine and Porous Structure of Magnesium Ferrite Nanospheres." International Journal of Nano Studies & Technology 3, no. 6 (2014): 72–77. https://doi.org/10.19070/2167-8685-1400014.

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Porous sphere-shaped magnesium (MgFe2O4) spinel ferrite particles were synthesized with high yields, crystallinity and purity through an easy, quick, reproducible and low-temperature hydrothermal synthesis route starting from an aqueous suspension of coprecipitated metal oxalates. The structural and morphological properties of the prepared materials were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, energy-dispersive X-ray spectroscopy, infrared spectroscopy and N2 adsorption–desorption measurement. Results show th

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Roumaih, Kh, M. Yehia, and H. E. Hassan. "Synthesis and Characterization of Core–Shell NiFe2O4@MgFe2O4 and ZnFe2O4@MgFe2O4 Nanoferrites." Journal of Inorganic and Organometallic Polymers and Materials 30, no. 8 (2020): 3132–42. http://dx.doi.org/10.1007/s10904-020-01476-y.

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Priya, K. Jyothi, Ch Ramya Kumari, M. Suneetha, et al. "Synthesis and Evaluation of Novel Ternary MgFe2O4/CuO/TiO2 Nanocomposite for Visible Light Photodegradation of Malachite Green Dye." Asian Journal of Chemistry 36, no. 11 (2024): 2647–53. http://dx.doi.org/10.14233/ajchem.2024.32635.

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Novel ternary MgFe2O4/CuO/TiO2 nanocomposite was synthesized using the sol-gel method at low temperatures. The XRD, FTIR, SEM-EDX, TEM, UV-visible DRS and VSM techniques were used to characterize the structure, shape, optical, morphology and magnetic properties. The XRD examination revealed typical peaks in nanocomposites, including the anatase phase of TiO2 with an average diameter of 9 nm, consistent with the TEM data. The SEM morphology examinations revealed spherical particles, while EDAX analysis indicated the corresponding components (Fe, Ti, O, Mg and Cu) in the prepared nanocomposites.

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Б, Энхмэнд, Хишигдэмбэрэл И, Хонгорзул Б та ін. "Төмөр агуулсан наносоронзон материалын дулаан ялгаруулах чадамжийн судалгаа". Физик сэтгүүл 29, № 518 (2022): 74–79. http://dx.doi.org/10.22353/physics.v29i518.1216.

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Энэхүү ажилд золь-гелийн аргаар синтезлэн гарган авсан магнийн болон зэсийнферрит (MgFe2O4, CuFe2O4) нэгдлүүдийн хувьсах соронзон оронд дулаан ялгаруулахчадамжийг дээжний хэмжээнээс хамааруулан өөрсдийн угсарч усан хөргүүр бүхийсоронзон орон үүсгэх төхөөрөмжийг ашиглан гүйцэтгэсэн судалгааны үр дүнгээстусгалаа. Дээжний хэмжээ 50, 75, 100 мг байхад дулаан ялгаруулалтын температур 32- 45 оС хооронд байсан,харин Чадлын Хувийн Шингээлт харгалзан MgFe2O4 дээжийнхувьд 5.46 Вт/гр, 5.13 Вт/гр, 4.9 Вт/гр гарсан бол CuFe2O4 дээжүүдийн хувьд 1.61Вт/гр, 1.4 Вт/гр, 1.3 Вт/гр байв

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Meirelles, Mariana Rodrigues, João Otávio Donizette Malafatti, Márcia Tsuyama Escote, Alexandre Henrique Pinto, and Elaine Cristina Paris. "Magnetic Adsorbent Based on Faujasite Zeolite Decorated with Magnesium Ferrite Nanoparticles for Metal Ion Removal." Magnetochemistry 9, no. 5 (2023): 136. http://dx.doi.org/10.3390/magnetochemistry9050136.

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Magnetic nanoparticles are a promising alternative as a support in adsorption processes, aiming at the easy recovery of the aqueous medium. A faujasite zeolite (FAU) surface was decorated with magnesium ferrite (MgFe2O4) nanoparticles. FAU is a porous adsorbent with high specific surface area (SSA) and chemical stability. The FAU:MgFe2O4 nanocomposite 3:1 ratio (w w−1) promotes the combination of the surface and magnetic properties. The results showed the effectiveness of the MgFe2O4 immobilization on the FAU surface, exhibiting a high SSA of 400 m2 g−1. The saturation magnetization (Ms) was v

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Reddy, Sathish, B. E. Kumara Swamy, Umesh Chandra, K. R. Mahathesha, T. V. Sathisha, and H. Jayadevappa. "Synthesis of MgFe2O4 nanoparticles and MgFe2O4 nanoparticles/CPE for electrochemical investigation of dopamine." Analytical Methods 3, no. 12 (2011): 2792. http://dx.doi.org/10.1039/c1ay05483j.

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Riyanti, Fahma, ,. Nurhidayah , Nurhidayah, Widia Purwaningrum, Nova Yuliasari, and Poedji Loekitowati Hariani. "MgFe2O4 Magnetic Catalyst for Photocatalytic Degradation of Congo Red Dye in Aqueous Solution Under Visible Light Irradiation." Environment and Natural Resources Journal 21, no. 4 (2023): 1–11. http://dx.doi.org/10.32526/ennrj/21/20230002.

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In this study, MgFe2O4 was successfully synthesized through the coprecipitation method using the precursors Fe(NO3)3·9H2O and Mg(NO3)2·6H2O. The MgFe2O4 product was characterized using XRD, SEM-EDS, VSM, UV-DRS, and FTIR. The catalyst was used for the photocatalytic degradation of Congo red dye under visible light irradiation. The variables of the photocatalytic degradation included solution pH, Congo red concentration, H2O2 concentration, and irradiation time. The MgFe2O4 synthesized has magnetic properties, with a saturation magnetization value of 17.78 emu/g and a band gap of 1.88 eV. A deg

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Aliah, Hasniah, Elis Sabilil Hidayah, Ryan Nur Iman, Asti Sawitri, and Andhy Setiawan. "Photocatalytic activity of MgFe2O4:TiO2 composite for degrading methylene blue." Jurnal Pendidikan Fisika dan Keilmuan (JPFK) 8, no. 1 (2023): 191. http://dx.doi.org/10.25273/jpfk.v8i1.13510.

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<em>We reported the methylene blue (MB) degradation by the photocatalysis method. This work aimed to know the effectiveness of degradation using a MgFe2O4:TiO2 composite. Synthesis of the composite used the sol-gel method. We synthesized three samples with ratios between MgFe2O4 and TiO2. Those were 100:0, 50:50, and 75:25, respectively. Sample (75:25) degraded MB of 47.23% with a reaction rate of 5.326 x 10-3 minute-1 under solar radiation. Whereas, without solar radiation, a sample showed a lower reaction rate. It happened because the sunlight produced photon energy to produce OH* radi

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Willey, R. J., S. A. Oliver, G. Oliveri, and G. Busca. "Chemistry and structure of mixed magnesium ferric oxide aerogels." Journal of Materials Research 8, no. 6 (1993): 1418–27. http://dx.doi.org/10.1557/jmr.1993.1418.

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Fine particles of mixed oxides having the composition MgxFe2−2xO3−2x (x between 0 and 1.0) were prepared via the sol-gel supercritical drying route (aerogels). Samples were then postprocessed by heating in air at 773 K and 1073 K. The structure and chemistry of the samples were deduced through x-ray diffraction, thermal gravimetric and differential thermal analysis, infrared, and specular UV-visible measurements. Surface areas were measured by the BET method. The volume saturation magnetization and particle volume distribution of MgFe2O4 samples were deduced from vibrating sample magnetometer

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Gusmano, G., P. Nunziante, E. Traversa, and R. Montanari. "Microstructural characterization of MgFe2O4 powders." Materials Chemistry and Physics 26, no. 5 (1990): 513–26. http://dx.doi.org/10.1016/0254-0584(90)90061-e.

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Vaish, Garima, Ram Kripal, and Lokendra Kumar. "EPR and optical studies of pure MgFe2O4 and ZnO nanoparticles and MgFe2O4–ZnO nanocomposite." Journal of Materials Science: Materials in Electronics 30, no. 17 (2019): 16518–26. http://dx.doi.org/10.1007/s10854-019-02028-y.

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Kurian, Jessyamma, and M. Jacob Mathew. "Structural, Magnetic and Mossbauer Studies of Magnesium Ferrite Nanoparticles Prepared by Hydrothermal Method." International Journal of Nanoscience 17, no. 01n02 (2017): 1760001. http://dx.doi.org/10.1142/s0219581x17600018.

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Magnesium ferrite (MgFe2O[Formula: see text] being a soft magnetic material with fast frequency response, high a.c. heat power generation and high biocompatibility, is widely used in biomedical fields such as targeted drug delivery, magnetic hyperthermia, etc. This paper reports the synthesis of magnetic MgFe2O4 nanoparticles by hydrothermal method using chloride salts of metal ions. The effect of calcination on the structural and magnetic properties is studied by XRD, FTIR, VSM and Mossbauer spectrum analysis. Fine particles in the size range 3–24[Formula: see text]nm are obtained. On calcina

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Rahmanivahid, Behgam, Maria Pinilla-de Dios, Mohammad Haghighi, and Rafael Luque. "Mechanochemical Synthesis of CuO/MgAl2O4 and MgFe2O4 Spinels for Vanillin Production from Isoeugenol and Vanillyl Alcohol." Molecules 24, no. 14 (2019): 2597. http://dx.doi.org/10.3390/molecules24142597.

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CuO/MgAl2O4 and CuO/MgFe2O4 catalysts were successfully synthesized with the use of spinel supports by a very simple and low-cost mechanochemical method. High-speed ball-milling was used to synthesize these catalyst supports for the first time. Materials were subsequently characterized by using XRD, FESEM, TEM, EDS-Dot mapping, XPS, BET-BJH, and Magnetic Susceptibility to investigate the physical-chemical characteristics of the catalysts. Acidity evaluation results indicated that the catalyst with the Mg-Al spinel support had more acid sites. XRD results showed a successful synthesis of the ca

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Ehi-Eromosele, Cyril O., Benedict I. Ita, Emeka E. J. Iweala, Kehinde O. Ogunniran, Joseph A. Adekoya, and Tolutope O. Siyanbola. "Silica Functionalized Magnesium Ferrite Nanocomposites for Potential Biomedical Applications: Preparation, Characterization and Enhanced Colloidal Stability Studies." Journal of Nano Research 40 (March 2016): 146–57. http://dx.doi.org/10.4028/www.scientific.net/jnanor.40.146.

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Magnetic nanocomposite material composed of silica coated MgFe2O4 for potential biomedical applications were synthesized by a two-step chemical method including solution combustion synthesis, followed by silica coatings of the ferrite nanoparticles. The effects of silica coatings on the structural, morphological and magnetic properties were comprehensively investigated using powder X-ray diffraction (XRD), Field Emission Scanning Electron Microscope (FESEM), energy dispersive absorption x-ray (EDAX), Fourier Transform Infrared spectroscopy (FTIR), thermogravimetric analysis and differential th

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Ilosvai, Ágnes M., Tímea B. Gerzsenyi, Emőke Sikora, et al. "Simplified Synthesis of the Amine-Functionalized Magnesium Ferrite Magnetic Nanoparticles and Their Application in DNA Purification Method." International Journal of Molecular Sciences 24, no. 18 (2023): 14190. http://dx.doi.org/10.3390/ijms241814190.

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For pathogens identification, the PCR test is a widely used method, which requires the isolation of nucleic acids from different samples. This extraction can be based on the principle of magnetic separation. In our work, amine-functionalized magnesium ferrite nanoparticles were synthesized for this application by the coprecipitation of ethanolamine in ethylene glycol from Mg(II) and Fe(II) precursors. The conventional synthesis method involves a reaction time of 12 h (MgFe2O4-H&R MNP); however, in our modified method, the reaction time could be significantly reduced to only 4 min by microw

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Сугурбекова, Г., Р. Кудайбергенова, А. Керимбек, and А. Жеткергенова. "SYNTHESIS AND PHYSICO-CHEMICAL PROPERTIES OF SPINEL MgFe2O4." Mechanics and Technologies, no. 2 (June 30, 2023): 125–32. http://dx.doi.org/10.55956/ybql6527.

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В работе описан синтез феррита магния (MgFe2O4) золь-гель методом, структура изучена методом рентгенодифрактометрического анализа (РФА), морфология поверхности исследовано с помощью сканирующей электронной микроскопии (СЭМ).

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Guo, Guanlun, Qiwei Su, Wei Zhou, Mingrui Wei, and Yun Wang. "Cycling stability of Fe₂O₃ nanosheets as supercapacitor sheet electrodes enhanced by MgFe₂O₄ nanoparticles." RSC Advances 13, no. 6 (2023): 3643–51. http://dx.doi.org/10.1039/d2ra07383h.

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Bhosale, Rahul R. "Conversion of Carbon Dioxide into Solar Fuels Using MgFe2O4 Thermochemical Redox Chemistry." C 11, no. 2 (2025): 25. https://doi.org/10.3390/c11020025.

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Transforming H2O and CO2 into solar fuels like syngas is crucial for future sustainable transportation fuel production. Therefore, the MgFe2O4/CO2 splitting cycle was thermodynamically scrutinized to estimate its solar-to-fuel energy conversion efficiency in this investigation. The thermodynamic data required to solve the modeling equations were obtained using the HSC Chemistry program. The reduction non-stoichiometry was assumed to be equal to 0.1 for all computations. One of the study’s primary goals was to examine the impact of the inert sweep gas’s molar flow rate on the process parameters

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Tarigan, Shiamny Nur Khair, Syahrul Humaidi, Martha Rianna, and Nurul Maulida R. Nasution. "Effect of NaOH Concentration on Magnetic Properties and Structural Studies of MgFe2O4 Based on Natural Iron Sand Synthesized by Co-Precipitation Method." Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram 11, no. 2 (2023): 636. http://dx.doi.org/10.33394/j-ps.v11i2.8092.

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This research was conducted to synthesize MgFe2O4 using the coprecipitation method by varying the concentration of NaOH. In this study, MgCl26H2O, iron sand, 37% HCl and variations of NaOH (5 M and 10 M) were mixed at 90 ℃ for 60 minutes, then washed using distilled water and ethanol until pH = 7, and calcined at 750 ℃. The test results using X-Ray Diffraction (XRD) showed that the diffraction pattern of phase formation identified was MgFe2O4 with hkl values (220), (311), (400), (422), (511), and (440). The resulting crystal size decreased with the addition of NaOH concentration. The test resu

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Sadeghi, Meysam, Saeed Farhadi, and Abedin Zabardasti. "A NaX zeolite framework containing magnetic MgFe₂O₄/CdO nanoparticles: synthesis, characterization and catalytic performance in the decontamination of 2-chloroethyl phenyl sulfide (2-CEPS) as a model of sulfur mustard agent." New Journal of Chemistry 45, no. 45 (2021): 21315–26. http://dx.doi.org/10.1039/d1nj04202e.

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Ramezaninejad, Zahra, and Lotfi Shiri. "MgFe₂O₄@Tris magnetic nanoparticles: an effective and powerful catalyst for one-pot synthesis of pyrazolopyranopyrimidine and tetrahydrodipyrazolopyridine derivatives." RSC Advances 14, no. 9 (2024): 6006–15. http://dx.doi.org/10.1039/d3ra07934a.

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The preparation of pyrazolopyranopyrimidine and tetrahydrodipyrazolopyridine derivatives in the presence of MgFe2O4@Tris nanoparticles as an innovative catalyst in water and at room temperature has been reported.

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