Enhancing saturation magnetization of Mg ferrite nanoparticles for better magnetic recoverable photocatalyst

Mostafa, Nasser Y.; Zaki, Z.I.; Hessien, M.M.; Shaltout, Abdallah A.; Alsawat, Mohammed

doi:10.1007/s00339-018-2268-z

Cited by 19 publications

(4 citation statements)

References 35 publications

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“…It eliminates exchange (B-B) and super exchange (A-B) interactions [26,57]. Similarly, same result was got for Mo doped ferrite nanoparticles [37,40,41]. For the present method, the exceptionally low magnetization values derive from two sources.…”

Section: Vsm Studysupporting

confidence: 74%

Microstructure and Magnetic properties of ferrite nanoparticles synthesized by Co-precipitation method

Sagayaraj

Aravazhi

Chandrasekaran

2021

Preprint

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In the current research, Cu0.5Co0.3Mo0.2Fe2O4 mixed ferrite nanoparticles have been synthesized using Co-precipitation method. XRD patterns show the development of polyphasic copper, cobalt and molybdenum mixed spinel composition. The particle size of ferrite system is 16nm and they are nanoparticles. The lattice constant was determined to be 8.368 Å used for the highest peak (311). FTIR spectroscopy shows the lower octahedral and higher tetrahedral frequency alignment of ions in the spinel ferrite leading to the octahedral 550 cm− 1 and the tetrahedral 471 cm− 1 vibration modes. TEM micrographs showed spherical morphology and their particle size less than 50 nm, which correlated XRD crystallite size. VSM shows excellent ferrimagnetic properties because of higher coercivity (985.29 G). These higher coercivity materials can make cathode content for Li-ion batteries.

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Section: Vsm Studysupporting

confidence: 74%

Microstructure and Magnetic properties of ferrite nanoparticles synthesized by Co-precipitation method

Sagayaraj

Aravazhi

Chandrasekaran

2021

Preprint

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“…Chest CT plays an important role in COVID-19 screening, primary diagnosis, and evaluation [22,23] . Diabetes mellitus (DM) is a risk factor associated with severe illness in SARS-CoV-2 infection.…”

Section: Discussionmentioning

confidence: 99%

Chest CT Severity Score in COVID-19 Patients: Comparison between Diabetic and Non-Diabetic Patients

EISSAWY¹,

SAADAWY²

2022

The Medical Journal of Cairo University

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Background: The Coronavirus Disease 2019 (Covid 19) pandemic has become a significant challenge for the healthcare sector, with a high rate of morbidity and mortality. Co-morbid conditions like diabetes put the patients at higher risk for serious illness and complications. Aim of Study:The current study aimed to use the CT chest severity score to assess the severity of lung affection caused by Covid-19 in diabetic and nondiabetic patients.Patients and Methods: From January to June 2021, high resolution non-contrast Computed Tomography (CT) chest imaging was performed on a total of 120 patients. The computed tomography severity score (CTSS) was calculated after analysis of the images. The patients were grouped into mild and severe cases in both diabetic and nondiabetic groups.Results: Among 120 confirmed cases of COVID-19 infection, 67 (55.8%) were diabetics and 53 (44.2%) were nondiabetics. Many CT chest findings were observed, including ground glass opacitiesand consolidations. CT chest severity scoring (CTSS) was calculated for each patient. The severe cases (CTSS >18) compromised 43.3% of diabetic patients and 26.4% of non-diabetic group. It was noticed that lower lobes are significantly more affected than upper lobe units on both sides and the posterior basal segments are the most frequently involved segments. Conclusion:According to this study, COVID-19 patients with diabetes comorbidity are at greater risk of severe disease than those without diabetes. Therefore, Clinicians need to focus more on treating COVID-19 pneumonia patients who also have diabetes.

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“…Spinel ferrites with the chemical formula MX 2 O 4 (M = divalent metal and X = Fe 3+ ) are a large group of mixed oxides with diverse physicochemical properties [9][10][11]. Mixing different magnetic and nonmagnetic ions in the spinel structure enables magnetic tuning and the photocatalytic properties of ferrites [12][13][14]. Nano-ferrite based transition metals are very important materials due to their different applications in various fields such as surface chemistry and catalysis [11,13,[15][16][17].…”

Section: Introductionmentioning

confidence: 99%

The Structure, Magnetic, and Gas Sensing Characteristics of W-Substituted Co-Ferrite Nanoparticles

et al. 2022

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Ferrites have been broadly investigated as gas sensors. The present article reports on the synthesis of Co-ferrite doped with W ions and their gas sensing abilities. A series of single phase CoFe2O4 powder with different W-doping (0.0 ≤ x ≤ 0.15) was synthesized using sol-gel synthesis. A variation in the saturation magnetization (Ms) and the lattice dimension with W(VI) substitution was associated with a change in the distribution of Fe (III) ions between tetrahedral and octahedral sites. Introducing W (VI) ions into the spinel lattice induced the rearrangement of Fe (III) ions. The total Ms increased with W-doping up to x = 0.05 (Ms = 50.1 Am2/kg) and it dramatically decreased to 34.6 Am2/kg with x = 0.15 of doping. However, the lattice parameter increased with increasing doping levels. Different W-doped CoFe2O4 were examined for a gas sensing response in the temperature range of 200–450 °C. Comparing the sensor responses to various reducing gases, the material’s response was shown to be sensitive and selective for acetone. The addition of W (0.15%) had a significant impact on the response and on the operating temperature of the sensor material, indicating that it might be used as an acetone sensor.

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Enhancing saturation magnetization of Mg ferrite nanoparticles for better magnetic recoverable photocatalyst

Cited by 19 publications

References 35 publications

Microstructure and Magnetic properties of ferrite nanoparticles synthesized by Co-precipitation method

Microstructure and Magnetic properties of ferrite nanoparticles synthesized by Co-precipitation method

Chest CT Severity Score in COVID-19 Patients: Comparison between Diabetic and Non-Diabetic Patients

The Structure, Magnetic, and Gas Sensing Characteristics of W-Substituted Co-Ferrite Nanoparticles

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