Article
Materials Science, Multidisciplinary
Mai M. El-Masry, Rania Ramadan
Summary: Cobalt ferrite, copper ferrite, and cobalt doped copper ferrite nanoparticles were synthesized and characterized, and they were found to be promising fillers for PVDF polymer, improving its optical and piezoelectric properties.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Chemistry, Analytical
Hossein Dadras Moghaddam, Rouhollah Khani, Bahareh Khodaei
Summary: In this study, a method using liquid-phase microextraction with ferrofluid based on cobalt ferrite nanoparticles coupled with spectrofluorometric approach was developed for extraction and determination of ascorbic acid. By studying influential factors and optimizing the process, the quantification of ascorbic acid in real samples was successfully achieved.
MICROCHEMICAL JOURNAL
(2022)
Article
Polymer Science
Rima D. Alharthy, Ahmed Saleh
Summary: A new chemi-resistive, flexible, and selective ammonia gas sensor was developed in this study, with good response to NH3, reproducibility, ultra-low detection limit, and excellent flexibility.
Article
Chemistry, Multidisciplinary
J. K. Han, A. A. Baker, J. R. I. Lee, S. K. McCall
Summary: Exchange coupling in a model core-shell system is demonstrated as a step towards 3D exchange spring magnets. High-quality core-shell nanoparticles of Ni@CoFe2O4 were fabricated using a simple two-step method. The microstructural quality was validated using TEM, confirming a well-defined interface between the core and the shell. Results showed a strongly temperature-dependent two-phase magnetic hysteresis loop, indicating a coupling of approximately 50% between the core and the shell. Element-specific XMCD hysteresis confirmed the presence of exchange coupling, suppressing the superparamagnetism of the Ni core at room temperature, and achieving a coercivity of >6 kOe at 80 K. These findings provide a pathway for the development of heterostructured metal-oxide exchange-coupled nanoparticles with improved maximum energy product.
Article
Chemistry, Physical
M. Ismail, N. A. Ali, N. A. Sazelee, S. U. Muhamad, S. Suwarno, N. H. Idris
Summary: The effect of cobalt ferrite nanopowder on the dehydrogenation properties of sodium alanate was studied for the first time. The addition of cobalt ferrite significantly reduced the decomposition temperature of sodium alanate and enhanced the hydrogen release rate. This was attributed to the synergistic catalytic effect of new active species formed during the dehydrogenation process.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
S. Vivek, A. S. Kumar, C. S. Chitra Lekha, N. Kalarikkal, A. Banerjee, S. S. Nair
Summary: The study explores the exchange bias effects in inverted core-shell nanoparticles, showing diverse physical phenomena such as spin-glass characteristics and training effect. The crystallinity of the CFO shell influences the behavior of the core-shell nanoparticles.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Yue Yuan, Shicheng Wei, Yi Liang, Bo Wang, Yujiang Wang, Wei Xin, Xinlei Wang, Yu Zhang
Summary: The cobalt ferrite/carbon nanotubes nanocomposite absorber materials synthesized by a solvothermal method demonstrate excellent absorption properties and a wide absorption bandwidth, making them suitable for microwave absorbers in various technological applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Environmental
Jinglin Zhu, Shu Wang, Zhichao Yang, Bingcai Pan
Summary: This study demonstrates the use of macroporous polystyrene resin as a support to improve the stability of nanosized spinel cobalt ferrite (CoFe2O4) during peroxymonosulfate (PMS) activation for decontamination in water. The supported CoFe2O4 nanoparticles exhibit high catalytic activity and low cobalt leaching. The findings also reveal the stability of the organic resin during the non-radical process and evaluate the catalytic durability and stability of CoFe2O4 in actual wastewater.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Physics, Applied
Sudhir Regmi, Zhong Li, K. C. Shambhu, Rabin Mahat, Ankur Rastogi, Ranjan Datta, Arunava Gupta
Summary: Epitaxial thin films of cobalt ferrite have been successfully grown on isostructural substrates using pulsed laser deposition. The films on ZnGa2O4 substrates are defect-free and under slight compressive strain, while the films on MgGa2O4 substrates show strain relaxation and defect formation.
APPLIED PHYSICS LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Pendaranahalli Nadikeraiah Anantharamaiah, Hadonahalli Munegowda Shashanka, Srikari Srinivasan, Debabrata Das, Ahmed A. El-Gendy, C. V. Ramana
Summary: This study reports on the fabrication, characterization, and evaluation of cobalt ferrite nanocrystalline thin films on a flexible mica substrate. The CFO films exhibited single-phase and nanocrystalline nature, spherical shape morphology, and suitable magnetic and magnetostrictive properties for flexible sensor devices.
Article
Engineering, Chemical
Yinghao Li, Wenjie Zhu, Qian Guo, Xi Wang, Liming Zhang, Xiaoya Gao, Yongming Luo
Summary: In this study, cobalt ferrite materials with different Co:Fe molar ratios were synthesized and utilized for catalyzing the activation of peroxymonosulfate (PMS) to degrade sulfamethoxazole (SMX). The CoFe/PMS system showed high degradation efficiency of SMX and excellent catalytic performance at a wide pH range. This work proposed a new catalytic degradation mechanism for SMX, which could provide an efficient treatment method for wastewater containing SMX compounds.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Environmental
Hanxuan Zeng, Bufan Yang, Wenfang Shi, Keqi Huang, Cheng Ye, Xiaoyan Ma, Zhijun Wang, Fei Huang, Xueyan Li, Jing Deng
Summary: In this study, rod-like sulfur doped CoFe2O4 was prepared to remove arsanilic acid (p-ASA) and showed high degradation efficiency and arsenic immobilization capability. This research is significant for the safe removal of p-ASA and the broadening of cobalt ferrite applications.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Adam Szatmari, Rares Bortnic, Gabriela Souca, Razvan Hirian, Lucian Barbu-Tudoran, Fran Nekvapil, Cristian Iacovita, Emil Burzo, Roxana Dudric, Romulus Tetean
Summary: Co1-xZnxFe2O4 nanoparticles (0 <= x <= 1) were synthesized via a green sol-gel combustion method, and their characteristics were studied using various techniques. The nanoparticles showed high crystallinity and exhibited a cubic Fd-3m structure. The presence of cobalt, zinc, iron, and oxygen in the samples was confirmed through EDS analysis. Raman spectra revealed the preferential location of Zn ions in T sites for low Zn concentrations. The magnetic properties of the nanoparticles were discussed based on the Raman results, showing an increase in magnetization with increasing Zn content for x < 0.5. Co ferrite doped with 30% Zn exhibited the highest SAR values, which increased linearly with H from 20 to 60 kA/m.
Article
Materials Science, Multidisciplinary
M. Zareef Khan, Hur Abbas, K. Nadeem, Shahzad Ahmed, Awais Ghani
Summary: Bare BaFe12O19, CoFe2O4, and their nanocomposites with concentration percentage 30-70, 50-50 and 70-30 were synthesized by sol-gel approach. The agglomeration of nanocomposites was observed in TEM image with a mean particle size of 44 nm. Magnetic characterization showed that the magnetic properties of nanoparticles were influenced by the inter-particle interactions in the nanocomposites.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Shizuka Kosugi, Miu Hisamatsu, Yuji Ohishi, Hiroaki Muta, Satoshi Seino, Takashi Nakagawa, Shun Fujieda
Summary: The partial substitution of Cu for Co in CoFe2O4 was found to effectively improve the magnetostrictive properties. Cubic spinel CuxCo1_xFe2O4 samples showed a larger strain magnitude at lower magnetic fields as x increased to 0.6. The sample with x = 0.6 demonstrated a strain of approximately 511 ppm when the direction of a 1 T magnetic field was changed. This value was approximately 1.6 times larger than that of Galfenol, a commercial magnetostrictive material without rare-earth elements. Such superior magnetostrictive properties were not observed in samples with x > 0.7 containing a tetragonal structure. Therefore, the cubic spinel CuxCo1_xFe2O4 system is a promising candidate for rare-earth-free magnetostrictive materials.
MATERIALS TRANSACTIONS
(2023)
Article
Chemistry, Physical
Aml M. Asran, Mona A. Mohamed, Nashaat Ahmed, Craig E. Banks, Nageh K. Allam
JOURNAL OF MOLECULAR LIQUIDS
(2020)
Article
Chemistry, Analytical
Fared M. El-badawy, Mona A. Mohamed, Hanaa S. El-Desoky
MICROCHEMICAL JOURNAL
(2020)
Article
Multidisciplinary Sciences
Suzan El-Akaad, Mona A. Mohamed, Nada S. Abdelwahab, Eglal A. Abdelaleem, Sarah De Saeger, Natalia Beloglazova
SCIENTIFIC REPORTS
(2020)
Article
Chemistry, Analytical
Mona A. Mohamed, Nahla N. Salama, Maha A. Sultan, Hadeer F. Manie, Maha M. Abou El-Alamin
MICROCHEMICAL JOURNAL
(2020)
Article
Chemistry, Analytical
Mahmoud A. Saleh, Manar M. Taha, Mona A. Mohamed, Nageh K. Allam
Summary: A novel electrochemical platform utilizing alpha-vanadium-manganese oxide composite nanorods was developed for the determination of Cilostazol, showing remarkable sensitivity and a wide linear range. The proposed methodology was optimized for excellent electron transfer kinetics and successfully validated for accurate determination of CTL in pharmaceutical preparations.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Analytical
Aml M. Asran, Mona A. Mohamed, Ghada M. G. Eldin, Rupesh K. Mishra, Abdelhamid Errachid
Summary: A novel electroanalytical protocol was developed for sensitive determination of AMS using Ruthenium nanoparticles and Safranin as modifier, showing good electrocatalytic activity and selectivity for simultaneous determination of AMS and co-administered drug CIT. The Ru-Saf/CPE modified sensor exhibited a wide linear response range for electrochemical sensing of AMS with LOD of 8.80 x 10-9 M.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Analytical
Mona A. Mohamed, Ghada M. G. Eldin, Sani M. Ismail, Nadia Zine, Abdelhamid Elaissari, Nicole Jaffrezic-Renault, Abdelhamid Errachid
Summary: An electrochemical sensor using MnO2-rGO nanocomposite was developed for accurate determination of Favipiravir (FAV). The platform can be applied in industry quality control and clinical analysis laboratories for FAV determination.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Engineering, Multidisciplinary
Monira G. Ghoniem, Mona A. Mohamed, Ghada M. G. Eldin, Abdelhamid Errachid
Summary: This study accurately determined Cinchocaine using functionalized multiwall carbon nanotubes and ionic liquid modified electrochemical electrode. The method showed good stability and reproducibility, with a wide detection range and successful application in quantifying CIN in real samples.
Article
Chemistry, Multidisciplinary
Mahmoud A. Saleh, Mona A. Mohamed, Ahmed Shahat, Nageh K. Allam
Summary: The electrochemical determination of VLP using a novel MOF-based platform has been enhanced through modification, showing improved activity and response for detecting anti-SARS-COV-2 and anti-HCV agents with a wide linear range and low detection limit.
Review
Medicine, General & Internal
Atul Sharma, Rupesh Kumar Mishra, K. Yugender Goud, Mona A. Mohamed, Shekher Kummari, Swapnil Tiwari, Zhanhong Li, Roger Narayan, Lia A. Stanciu, Jean Louis Marty
Summary: Biosensors have become crucial in healthcare and clinical research for early diagnostics and countermeasures. Optical biosensors, with their advantages of speed, portability, specificity, and sensitivity, offer an effective method for rapid detection of pathogenic virus particles. Integration of intelligent nanomaterials in sensors enhances their sensitivity and advanced capabilities, providing valuable assistance to clinicians.
Article
Chemistry, Analytical
Hanaa S. El-Desoky, Amr M. Beltagi, Mohamed M. Ghoneim, Ahmed El-Hadad
Summary: An efficient and environmentally-friendly method for the simultaneous determination of three heavy metal ions was developed using modified electrodes. The use of nanomaterials significantly improved electron transfer processes, enabling preconcentration and detection of the metal ions. This sensor showed good selectivity, stability, and reproducibility, with low LOD values below the safety limits set by the WHO for drinking water.
MICROCHEMICAL JOURNAL
(2022)
Article
Biochemistry & Molecular Biology
Aml M. Asran, Ahmed A. M. Ahmed, Mona A. Mohamed
Summary: Thermogravimetry was used to investigate the thermal decomposition of oxomemazine, and kinetic analysis of the first decomposition stage was performed using various equations. The findings are important for the storage, quality control, and shelf life of oxomemazine.
ORIENTAL JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Mona A. Mohamed, Nahla N. Salama, Maha A. Sultan, Hadeer F. Manie, Maha M. Abou El-Alamin
Summary: The study presents a simple, quick, and low-cost electrochemical platform for determining butenafine hydrochloride (BTH), a medication used in the treatment of dermatophytosis. The platform utilizes titanium nanoparticles and an ionic liquid as mediators, offering reliable detection with low limits of detection and a wide concentration range. The practical applicability of the sensor was demonstrated in various samples, including pharmaceutical preparations and actual stratum corneum samples, allowing simultaneous detection of BTH and Itraconazole for the first time.
Article
Thermodynamics
Aml M. Asran, Mona A. Mohamed, Ghada E. Khedr, Ghada M. G. Eldin, Ali M. Yehia, Rupesh K. Mishra, Nageh K. Allam
Summary: This study investigated the thermal decomposition of the third-generation beta-blocker nebivolol using thermogravimetric analysis under isothermal and non-isothermal conditions. Kinetic analysis and thermodynamic constraints were also studied, along with a correlation between mass spectrometry and thermal behavior. Valuable stability data and optimal storing conditions were provided for drug design and manufacturing. Density functional theory was used to study possible thermodynamic dissociation channels of nebivolol.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Electrochemistry
Suzan El-Akaad, Mona A. Mohamed, Moustafa M. Elmasri, Nada S. Abdelwahab, Eglal A. Abdelaleem, Sarah De Saeger, Natalia Beloglazova
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2020)
Article
Chemistry, Multidisciplinary
Zihan Ma, Lishuang Wang, Tingting Chen, Guangning Wang
Summary: In this study, two kinds of 3D self-doped (N/O) lilac-based and coriander-based porous carbons with high performance have been prepared.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Qin Wang, Yun-Fan Yan, Jiao-Lin Weng, Ying Huang, Fu Yang, Hao-Hui Xie, Fei Tan, Fa-Kun Zheng, Jian-Gang Xu
Summary: Balancing energy and mechanical sensitivities is a challenging issue in the field of energetic materials. This study constructed a 3D energetic metal-organic framework with nitrogen-rich ligand and NO3- anions. The framework demonstrated high stability, energy density, and excellent mechanical sensitivities, making it a potential insensitive energetic material.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Marrium Saeed, Urooj Kamran, Amina Khan, Md Irfanul Haque Siddiqui, Hasan Jamal, Haq Nawaz Bhatti
Summary: In this study, magnesium-aluminum layered double hydroxides (Mg-Al-LDH) were synthesized using an environmentally friendly hydrothermal technique for adsorbing the dye reactive green 5 (RG5). To improve the adsorption capability, composites were prepared by combining Mg-Al-LDH with low-cost Mangifera indica stone biomass (MISB). The results showed that the composites had high adsorption capacities for RG5 dye and could be regenerated.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Xuanlin Zhan, Xiaojie Li, Yunyan Zeng, Siyan Jiang, Chao Pan, Shiyu Pan, Jiaquan Huang, Heqian Zhang, Zhiwei Qin
Summary: This study reports on the potential prospects of natural products derived from the rhizosphere for the development of antibiotics and herbicides, as well as the advancements in cultivating a mutant strain that produces a substantial quantity of lydicamycins, a potent family for herbicide development.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Jie Zhu, Jiangtao Yu, Linhua Zhu, Xiaoxiao Yu, Jixing Liu, Yanhong Chao, Jingzhou Yin, Peiwen Wu, Jian Liu, Wenshuai Zhu
Summary: This study successfully demonstrates the 3D printing of attapulgite monoliths and investigates the influence of thermal treatment on their properties. The thermal treated monoliths show superior catalytic performance at low temperatures.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Yanzhu Ye, Yixiang Ye, Jiannan Cai, Zhongshui Li, Shen Lin
Summary: In this paper, a novel Pt/CoP/C photo-electro synergistic catalyst was successfully synthesized and its performance was investigated. The catalyst exhibited excellent photo-electro catalytic performance, with significantly higher hydrogen production compared to a commercial catalyst. The introduction of cobalt phosphide and the existence of Co3O4 were identified as key factors for enhancing the catalytic activity.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Nurul Hidayah Abu Bakar, Wan Norfazilah Wan Ismail, Hartina Mohd Yusop, Noreen Farzuhana Mohd Zulkifli
Summary: Hydrophobic coatings inspired by the lotus effect have gained popularity for their ability to solve various problems. The sol-gel method, utilizing silica, alumina, and titania, is explored as an environmentally friendly approach to produce water-based hydrophobic coatings. This study focuses on producing water-based hydrophobic coatings for cotton and polyester fabrics using a one-step sol-gel method. The coated fabrics exhibited improved hydrophobic properties, altered surface morphologies, and lower air permeability compared to uncoated fabrics. TEOS-PDMS coating provides a promising approach for enhancing the hydrophobic and surface properties of cotton and polyester fabrics.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Nikita Belko, Hanna Maltanava, Anatol Lugovski, Polina Shabunya, Sviatlana Fatykhava, Evgeny Bondarenko, Pavel Chulkin, Sergey Poznyak, Michael Samtsov
Summary: This study investigates the difference in electrochemical behavior between rhodamine B hydrazide and rhodamine B acylhydrazone, and finds that rhodamine B acylhydrazone exhibits higher reversibility in electrooxidation. These results can be applied for developing new sensors with desired electrochemical properties.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Showket Ahmad Bhat, Mohd Ikram
Summary: In this study, 0-3 particulate multiferroic composites were synthesized and characterized. The composites exhibited excellent ferroelectric and ferromagnetic properties, as well as high piezoelectric strain and magnetoelectric coupling effects.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Carla Gomes, Mariana Costa, Susana M. M. Lopes, Bernardo Albuquerque Nogueira, Rui Fausto, Jose A. Paixao, Teresa M. V. D. e Melo, Luisa M. D. R. S. Martins, Marta Pineiro
Summary: The development of sustainable processes requires the integration of green chemistry principles. In this study, a solvent-free synthesis method was developed to prepare new copper catalysts, which efficiently catalyze cycloaddition reactions under solvent-free mechanochemical conditions. Through this process, the principles of atom economy, reduction of solvents and auxiliaries, design for energy efficiency, and reduction of derivatives and catalysis are combined.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Zhihua Liu, Jinzhe Li, Jianguo Zhou
Summary: This study demonstrates the enhancement of photoelectrochemical activity of BiFeO3 photoelectrodes through ion modification, which increases visible light absorption and active area, leading to improved PEC water splitting performance.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Yisheng Zhang, Wensong Li, Jing Li, Fang Li, Wei Xue, Xinqiang Zhao, Yanji Wang
Summary: Pt/C and SO42-/ZrO2 were used as catalysts for the synthesis of p-aminophenol through the catalytic transfer hydrogenation of nitrobenzene in water with formic acid as the hydrogen source. The optimal Pt loading for PAP selectivity was found to be 1 wt%. The presence of different valence states of Pt affected both the nitrobenzene hydrogenation and formic acid decomposition. Among different solid acid catalysts tested, SO42-/ZrO2 exhibited the highest catalytic activity for p-aminophenol formation. Under the optimized reaction conditions, the conversion of nitrobenzene reached 80.0%, with a selectivity of 47.6% for p-aminophenol.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Pradyota Kumar Behera, Papita Behera, Amlan Swain, Santosh Kumar Sahu, Ajeena Sahoo, Laxmidhar Rout
Summary: We have developed a simple and direct method for the synthesis of diaryl ether using an oxygen bridged bimetallic CuMoO4 nanocatalyst under mild reaction conditions. The catalyst exhibited tolerance towards a wide range of substrates with various functional groups. It is efficient and recyclable. This methodology allows easy access to nitrofen derivatives (herbicides) from unactivated 2,4-dichlorophenol, which are important for agriculture and pharmaceuticals.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Yihua Fu, Yan Zhang, Changwei Hu, Zhishan Su
Summary: The mechanism of the reaction between CO2 and styrene oxide for cyclic carbonate was revealed using density functional theory calculations. The noncatalytic reaction occurred via a concerted mechanism, while in the presence of guanidine and tetrabutylammonium iodide (TBAI) co-catalysts, the epoxide ring-opening by nucleophilic attack of an iodide anion was predicted to be the rate-determining step. Guanidine acted as the H-bond donor to activate styrene oxide, facilitating the reaction with a lower activation barrier.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Saikat Khamarui, Sirshendu Ghosh
Summary: Copper nanorods (Cu-NRs) exhibit significant plasmonic behavior and can act as efficient catalysts in redox processes and coupling. A benign decarboxylative approach, utilizing localized surface plasmon resonance (LSPR) assisted catalysis with Cu-NRs, has been developed for the production of alkane analogues from alkyl carboxylic acids under visible light. The catalyst shows a broad substrate scope and high functional group tolerance, without the need for an external oxidant or proton source. A plausible mechanism for this recyclable nano-catalyst has also been proposed based on control experiments.
NEW JOURNAL OF CHEMISTRY
(2024)
