Article
Chemistry, Physical
Xiang Yu, Tianyu Yang, Chenhui Lv, Lichen Wang, Ruoshui Liu, Di'an Wu, Daming Tian, Shuli He
Summary: 10-nm MnxFe3-xO4 (x = 0, 0.3, 0.7) magnetic nanoparticles with single cubic structure were synthesized by thermal decomposition method. The magnetic properties and cation oxidation state of the nanoparticles were investigated. Mn doping induced lattice expansion and the fraction of Mn2+ and Mn3+ in the nanoparticles varied with different Mn concentrations. The saturation magnetization of the nanoparticles decreased with increasing Mn concentration due to lattice distortion, while preserving a constant value for Mn0.3Fe2.7O4 nanoparticles. Increasing the ratio of Mn2+ and avoiding lattice distortion are beneficial for improving the magnetic properties of manganese ferrite. In addition, Mn0.3Fe2.7O4 @SiO2 nanoparticles showed good magnetic hyperthermia properties in vitro.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Environmental Sciences
Hua Huang, Xin Tao, Zhirui Niu, Xiaoqian Qin, Jialu Ren, Baoqin Shan, Yu Liu, Jingyu Ren
Summary: In this work, novel Z-scheme heterojunction MnZnFe2O4@Ag3PO4 magnetic photocatalysts with excellent visible-light-driven photocatalytic activity were successfully constructed and characterized. The introduction of MZFO in the heterojunction exhibited good adsorption effect on visible light and significantly improved charge separation and electron transfer. The MZFO@APO-40% with 40% APO content showed rapid photodegradation performance, achieving a 100% removal efficiency of phenol after 12 minutes of visible light irradiation. The addition of MZFO has the potential to promote its application in environmental remediation.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Zhanjun Zhang
Summary: Polycrystalline spinel ferrite powders of Zn1-xMgxFe2O4 were synthesized by solid-state reaction, showing a sensitive response of magnetization to Mg2+ concentration. The saturation magnetization of Zn(1-x)MgxFe(2)O(4) reaches a maximum value near x = 0.8.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Environmental Sciences
Hua Huang, Wanting Feng, Zhirui Niu, Xiaoqian Qin, Xianfan Liu, Baoqin Shan, Yu Liu
Summary: In this study, magnetically recyclable Mn0.6Zn0.4Fe2O4@Zn0.9Mn0.1O (MZFO@ZMO) heterojunctions were successfully prepared from waste Mn-Zn batteries, exhibiting excellent photocatalytic activity under visible light irradiation. The optimized MZFO@50%-ZMO showed the highest photodegradation efficiency towards methylene blue, with a promising potential for practical application.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Environmental Sciences
Diksha, Manpreet Kaur, Veeranna Yempally, Harminder Kaur
Summary: The reduction of nitroarenes to aromatic amines has the potential to alleviate the hazardous impact of these toxic compounds on the aquatic environment. Aromatic amines obtained from this reduction process are less toxic and serve as important intermediates in various industries. This study explores the use of Fe3O4@trp@Ir nanoparticles as efficient catalysts for nitroarene reduction, with promising results in terms of high catalytic activity and rapid degradation of pollutants.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Review
Chemistry, Multidisciplinary
Hira Fatima, Tawatchai Charinpanitkul, Kyo-Seon Kim
Summary: The activation of magnetic nanoparticles in hyperthermia treatment by an external alternating magnetic field is an effective technique for targeted cancer therapy. The heating efficiency of magnetic nanoparticles is influenced by factors such as the product values of the applied magnetic field and frequency, as well as protein corona formation.
Article
Materials Science, Multidisciplinary
Muhammad Rashid, Warda Hassan, Muhammad Aadil, H. H. Somaily, Noor Mahmood Mahdi, Rahiam Lataef, Anmar Ghanim Taki, Khaysy Srithilat, Doaa F. Baamer, Soha M. Albukhari, Mohamed Abdel Salam, Asif Llyas
Summary: Semi-conductive photocatalysts are highly efficient and cost-effective for water treatment applications. Material scientists are working on developing nanostructured Mn-doped cobalt ferrite as a magnetically recyclable photocatalytic material that is active in visible light and has high conductivity. The study investigates the crystal structure, chemical composition, functionality, and morphology of the prepared ferrite samples, as well as their thermal stability, electrical conductivity, light-harvesting capability, charge transport performance, and charge separation efficiency.
Article
Materials Science, Multidisciplinary
Manoj Salgaonkar, R. S. Gad
Summary: Rare earth (Gd+3) substitution in nanocrystalline cobalt ferrite materials was investigated, showing essential magnetic characteristics for biomedical applications. The structure and properties alterations were studied using XRD, EDS, and SEM.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Nanoscience & Nanotechnology
W. J. Sousa, Y. Guerra, R. Pena-Garcia, E. Padron-Hernandez
Summary: The behavior of saturation magnetization as a function of temperature in Zinc doped YIG nanoparticles was investigated. It was found that the ferrimagnetic coupling weakened with increased doping of Zn. The proposal used in the study was able to adjust well to the change in nanoparticles shape.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2022)
Article
Materials Science, Multidisciplinary
Regaty Anitha Reddy, Kattepogu Rama Rao, Bitra Rajesh Babu, Guthikonda Kiran Kumar, Cherukupalli Rajesh, Anindita Chatterjee, Nadella Krishna Jyothi
Summary: This study systematically investigates the influence of Nd3+ substitution on the structural, magnetic, and electrical properties of cobalt ferrite. The experimental results show that Nd3+ substitution significantly affects the grain size, magnetic properties, and electrical resistivity of cobalt ferrite.
Article
Chemistry, Multidisciplinary
Hikaru Katayanagi, Naoki Sakai, Sota Hamada, Akihito Usui, Kota Aoki, Keita Kodama, Kentaro Nashimoto, Yoshiyuki Hosokai, Yuko Ichiyanagi
Summary: Co1-xMgxFe2O4 nanoparticles embedded in amorphous SiO2 were prepared using a wet chemical method. These nanoparticles exhibited a significant T-2 shortening effect and effective relaxivity in magnetic resonance imaging, as well as specific binding to maleimide proteins.
Article
Materials Science, Ceramics
Nguyen Thi Dieu Cam, Hai-Dinh Pham, Thanh-Dong Pham, Tran Thi Thu Phuong, Cao Van Hoang, Mai Hung Thanh Tung, Nguyen Tien Trung, Nguyen Thuy Huong, Tran Thi Thu Hien
Summary: The decoration of MnFe2O4 on BiVO4 led to the formation of a Z scheme heterojunction, which prevented charge recombination and produced e(-) and h(+) under visible light. The active oxygen radicals generated effectively degraded tetracycline, and the heterojunction was stable and easily recoverable by an external magnet due to high magnetically activity of MnFe2O4.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
S. Bhuvanasundari, Geetha Venkatachalam, Mukesh Doble, Tiju Thomas
Summary: A magnetic photocatalyst, Aluminium Ferrite (AlFeO3), was successfully synthesized and tested for its photocatalytic performance. The results show that AlFeO3 can effectively degrade textile dye pollutants under visible-light and UV illumination. It can also be magnetically retrieved from the treated water and reused multiple times with minimal efficiency loss, demonstrating its practicality for wastewater treatment.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Hossein Goodarzi, Manoochehr Sobhani
Summary: In this study, Mn0.76Zn0.24Fe2O4 spinel ferrite was fabricated with the addition of CaO. The addition of CaO improved the theoretical density and saturation magnetization of the samples.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Somnath Sahu, Ravi Chandra Gurrala, Pamu Dobbidi
Summary: This research demonstrates the enhancement of microwave absorption capability in Gd-doped Ni0.5Co0.5Fe2O4 nanoceramics through oxygen vacancy engineering. The study reveals that a small amount of Gd promotes high oxygen vacancy concentration, appropriate lattice defects, and high magnetic and dielectric losses. The results also provide insights into the connection between oxygen vacancy defects and electromagnetic wave dissipation capability.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Electrical & Electronic
A. M. A. Henaish, Hesham M. H. Zakaly, H. A. Saudi, Shams A. M. Issa, H. O. Tekin, M. M. Hessein, Y. S. Rammah
Summary: In this study, the thermal and optical properties of glass samples with different CeO2 contents were experimentally investigated using the differential scanning calorimetry method. The thermal stability, transition temperature, crystallization temperature, and melting point of the glasses were measured, and the optical information and conductivity parameters were obtained from the refractive index data.
JOURNAL OF ELECTRONIC MATERIALS
(2022)
Article
Polymer Science
Gaber A. M. Mersal, Mahmoud M. Hessien, Manal F. Abou Taleb, Salih S. Al-Juaid, Mohamed M. Ibrahim
Summary: This study investigated the chemical structures and catalytic activities of two zinc(II) complexes obtained from the reaction of bis(2-picolyl)amine with chloride or perchlorate salts of zinc(II) ions. The results showed that a specific hydroxoaqua complex exhibited higher catalytic activity in the hydrolysis reactions.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2022)
Article
Chemistry, Physical
Zaki I. Zaki, Saad H. Alotaibi, Bashayer A. Alhejji, Naser Y. Mostafa, Mohammed A. Amin, Mohsen M. Qhatani
Summary: In this study, a high-density ZrN/ZrSi2 composite with ZrO2 as an inert phase was synthesized using combustion-synthesis methodology accompanied by compaction. The addition of 20 wt% ZrO2 improved the hardness and reduced the porosity of the samples. The sample porosity was reduced to 1.66 vol%, and the sample hardness was improved to 1165 +/- 40.5 HV at 234 MPa.
Article
Engineering, Electrical & Electronic
N. Ekinci, K. A. Mahmoud, Bunyamin Aygun, M. M. Hessien, Y. S. Rammah
Summary: A Colemanite-polypropylene polymeric material was fabricated by doping different ratios of Colemanite material on polypropylene. The shielding capacity of the material against ionizing radiation was examined. The linear attenuation coefficient and half-value layer of the prepared materials were evaluated, showing an increase with the increase in Colemanite content. The radiation protection efficiency varied around 100% for gamma-ray photons with an energy of 15 keV and decreased with higher photon energy and increasing Colemanite concentration.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Engineering, Electrical & Electronic
N. Ekinci, K. A. Mahmoud, S. Saritas, Bunyamin Aygun, M. M. Hessien, Ibrahim Bilici, Y. S. Rammah
Summary: Samples of new polymeric material based on polypropylene doped with various Tincal concentrations have been developed. The structural characteristics of the produced polymeric materials were investigated using X-ray diffraction (XRD) and Raman Spectroscopy. The obtained materials' shielding capacity was studied in terms of mass attenuation coefficient and half-value layer. Experimental results show that increasing Tincal concentration has a beneficial influence on the linear attenuation coefficient.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2022)
Article
Engineering, Chemical
Omar H. Abd-Elkader, Abdullah M. Al-Enizi, Shoyebmohamad F. Shaikh, Mohd Ubaidullah, Mohamed O. Abdelkader, Nasser Y. Mostafa
Summary: This study presents the hydrothermal synthesis of V-doped nanostructured Mn-ferrite and investigates its structural and magnetic properties. The results show that the doping of V (V) ions can alter the unit cell dimensions, magnetic moment, and sensing sensitivity, while also improving gas-sensing ability.
Article
Chemistry, Inorganic & Nuclear
Muhammad Imran Khan, N. M. A. Hadia, Javed Iqbal, Sahar Javaid Akram, M. M. Hessien, Ahmed M. Shawky, Zouhaier Aloui, Naifa S. Alatawi, Rasheed Ahmad Khera
Summary: Computational studies were used to design five new acceptor molecules and evaluate their effectiveness. The new molecules showed improved optoelectronic characteristics, light-harvesting efficiency, and electron carrier capabilities compared to the reference molecule. The results suggest that these new molecules could enhance the solar efficiency of organic photovoltaic devices.
JOURNAL OF SOLID STATE CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Asma Aslam, Atta Ur Rehman, N. Amin, M. Amman, M. Akhtar, N. A. Morley, Merfat S. Al-Sharif, M. M. Hessien, Khaled A. El-Nagdy, Muhammad Imran Arshad
Summary: Tertiary spinel ferrite powders doped with Cd2+ were prepared using a cost-effective sol-gel auto combustion route, and their properties were characterized. The Cd2+ doped ferrite exhibited smaller crystallite size, lower resistivity, smaller AC conductivity, and dielectric loss compared to Mg2+ and Mn2+ doped ferrites. These findings suggest that Cd2+ doped ferrites could be suitable for high-frequency and high-power applications.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Spectroscopy
Abdallah A. Shaltout, Omar H. Abd-Elkader, Petra Lassen, Ursula A. E. Fittschen
Summary: A multi-elemental quantitative analysis technique was urgently needed for small quantities of human urinary stone samples. Microwave digestion with ultra-pure nitric acid and total reflection X-ray fluorescence (TXRF) were used for elemental determination in this study. P, S, Ca, Fe, Cu, Zn, Se, and Sr were detected in most urinary stones, while trace elements K, Ti, V, Cr, Mn, Ni, As, Pb, and U were found in some samples. Inductively coupled plasma optical emission spectrometry (ICP-OES) was also used for element determination. Statistical analysis and cluster analysis were conducted to explore the relationship between quantified elements and stone types. The role of certain elements in urinary stone formation was discussed, and the presence of uranium in some stones was confirmed.
X-RAY SPECTROMETRY
(2023)
Article
Environmental Sciences
Mohammed A. Amin, Dhaifallah R. Almalawi, Safaa S. M. Ali, Ali Badawi, Gaber A. M. Mersal, Johan Boman, Abdallah A. Shaltout
Summary: This study investigated the atmospheric PM2.5 particles in Jeddah, Saudi Arabia and analyzed their sources. The results showed that the air quality in Jeddah exceeded the standards set by the European Commission and the World Health Organization. Elemental analysis revealed the origin of different elements, including natural sources, anthropogenic sources, and sea spray.
Article
Chemistry, Multidisciplinary
Muhammad Imran Khan, N. M. A. Hadia, Ahmed M. Shawky, M. M. Hessien, Manel Essid, Sahar Javaid Akram, Javed Iqbal, Naifa S. Alatawi, Gaber A. M. Mersal, Rasheed Ahmad Khera
Summary: Seven small molecule donors (S1-S7) were theoretically formulated and their photo-physical, morphological, and opto-electronic properties were analyzed and compared to reference SR molecule. The S4 molecule exhibited the smallest bandgap and electron reorganization energy, highest ionization potential and absorption max, as well as the smallest excitation energy. The S1 molecule had the smallest interaction coefficient. The VOC and fill factor of S1 and S4 molecules were found to be the highest. Hence, these molecules, especially S1 and S4, are suggested for future innovations in organic photovoltaic cells.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2023)
Article
Materials Science, Ceramics
A. Abd El-Moemen, S. A. Shata, Rami Adel Pashameah, Samah A. A. AlSubhi, Eman Alzahrani, Abd-ElAziem Farouk, Zaki I. I. Zaki, M. H. H. Mahmoud, Nasser Y. Y. Mostafa
Summary: Silica-rich dealuminated kaolin (SRDK), a waste material in Egypt, can be converted into pure zeolite Y through a two-step process for the removal of ammonia from aquaculture. SRDK consists of amorphous silica with some unreacted metakaolin and crystalline silica. Zeolitization starts through mechanochemical activation at room temperature and is further enhanced by hydrothermal treatment at different temperatures. The zeolite with the highest efficiency for ammonia removal is obtained from a mixture of 80% SRDK and 20% metakaolin at 125 degrees C.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Review
Environmental Sciences
Abdallah A. Shaltout, Mohammad W. Kadi, Omar H. Abd-Elkader, Johan Boman
Summary: Air pollution caused by PM10 exceeding recommended limits is found in Jeddah city, Saudi Arabia. Differences in traffic, residential intensity, industrial, and non-road mobile machinery activities contribute to the variations in elemental concentrations at three different locations. Further evaluation is needed to understand the local influences and the health risks associated with high Cd concentrations.
ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
(2023)
Article
Materials Science, Multidisciplinary
M. M. Hessien, Mahdi Albogamy, Mohammed Alsawat, Abdulrahman Alhadhrami
Summary: Hexagonal M-type strontium ferrite was fabricated through a self-combustion tartrate precursor approach, resulting in a homogenous powder with a homogeneous shape and limited size distribution. The study investigated the influence of the Sr2+:Fe3+ molar ratio and annealing temperature on the formation, morphological structure, crystallite size, and magnetic performance of the strontium ferrite.
JOURNAL OF MAGNETICS
(2023)
Article
Chemistry, Physical
T. S. Soliman, S. A. Vshivkov, M. M. Hessien, Sh. I. Elkalashy
Summary: In this study, PVA was used as a host matrix to prepare PVA-Mn0.4Ni0.6Fe2O4 films. The addition of manganese-nickel ferrite nanoparticles led to an increase in PVA amorphousity, a decrease in the optical bandgap, and an increase in defect density.