Article
Biochemistry & Molecular Biology
Agnes Maria Ilosvai, Dalma Dojcsak, Csaba Varadi, Miklos Nagy, Ferenc Kristaly, Bela Fiser, Bela Viskolcz, Laszlo Vanyorek
Summary: The combination of sonochemical activation of Ni(NO3)(2) and Co(NO3)(2) with Fe(NO3)(3) and polyethylene glycol, followed by heat treatment, provides a cost-effective method for the preparation of nickel ferrite and cobalt ferrite magnetic nanoparticles. The study demonstrated the importance of heat treatment temperature in controlling the formation of metal oxides.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Multidisciplinary
M. A. Shilpa Amulya, H. P. Nagaswarupa, M. R. Anil Kumar, C. R. Ravikumar, K. B. Kusuma
Summary: The electrochemical characteristics of manganese ferrite nanoparticles were assessed in this study, demonstrating their potential applications in semiconductors, sensors, and energy storage devices. Various techniques were employed to determine the physical and chemical properties of the nanoparticles, with specific capacitance values obtained under acidic and basic electrolytes. The sonochemical synthesis of MnFe2O4 showed promising results in degrading dyes under ultraviolet light.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Chemistry, Multidisciplinary
Javiera Parada, Marcela Diaz, Edward Hermosilla, Joelis Vera, Gonzalo Tortella, Amedea B. Seabra, Andres Quiroz, Emilio Hormazabal, Olga Rubilar
Summary: In this study, a manganese-ferrite/silver nanocomposite (MnFe2O4/Ag-NC) obtained by biogenic routes was combined with eucalyptus oil or garlic oil to significantly reduce the minimum inhibitory concentration against Pseudomonas syringae, with a synergistic effect observed with eucalyptus oil and an additive effect observed with garlic oil.
Article
Chemistry, Physical
K. D. Martinson, V. E. Belyak, D. D. Sakhno, A. A. Ivanov, L. A. Lebedev, L. A. Nefedova, I. B. Panteleev, V. I. Popkov
Summary: A solution-combustion-assisted approach was proposed and realized for the successful production of ultra-magnetically soft LiZnTiMn-ferrite ceramics with advanced electromagnetic performance. The study examined the microstructure and magnetic properties of the ceramics, revealing the impact of initial reagents on the morphological and structural parameters of the pre-ceramic powders. The developed ceramic materials show potential for modern radio-electronic devices in both civil and military applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Environmental
Fuat Guzel, Cumali Yilmaz
Summary: The magnetic separable biochar nanocomposite (MWPC) synthesized in this study demonstrated high sorption capacity for lead removal from water and could be effectively separated using a magnetic process for recycling.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Elham Abkar, Mohammad Hassanpour, Omid Amiri, Mojgan Ghanbari, Masoud Salavati-Niasari
Summary: The study synthesized Tl4HgI6/HgI2 nanocomposites using a rapid ultrasonic method, demonstrating their excellent photocatalytic and antibacterial activity for decolorization and inhibition. The nanocomposites show great potential for various industrial applications.
Article
Engineering, Electrical & Electronic
Hamed Sarrami, Hamid Reza Ebrahimi, Hossein Emami
Summary: This article presents the development of a DMF gas sensor with high selectivity using specific nanoparticles and operating temperature, achieving fast response/recovery time and low drift in response magnitude over time.
IEEE TRANSACTIONS ON MAGNETICS
(2021)
Article
Pharmacology & Pharmacy
Raquel G. D. Andrade, Debora Ferreira, Sergio R. S. Veloso, Catia Santos-Pereira, Elisabete M. S. Castanheira, Manuela Corte-Real, Ligia R. Rodrigues
Summary: Calcium-doped manganese ferrite nanoparticles show lower cytotoxicity and improved magnetic properties compared to other ferrites. These nanoparticles, synthesized using the sol-gel method, exhibit good heating efficiency under an alternating magnetic field. In vitro cell experiments confirm their potential application in cancer treatment.
Article
Materials Science, Multidisciplinary
Guixiang Liu, Bo Dai, Yong Ren, Weitong Zhang
Summary: Spinel manganese ferrite (MnFe2O4) nanopowder synthesized by rapid microwave hydrothermal method exhibits significant effects of reaction time, temperature, and pH on its crystallinity, crystallite size, and saturation magnetization. The average crystallite size of the prepared nanopowder increases gradually with higher reaction temperature and pH, leading to improved crystallinities and saturation magnetization of nano-MnFe2O4. Under specific conditions, a MnFe2O4 powder with an average crystallite size of 17 nm and a specific saturation magnetization of 53.6 emu.g(-1) was obtained by a microwave-assisted hydrothermal method.
RESULTS IN PHYSICS
(2021)
Article
Engineering, Electrical & Electronic
N. Dogan, G. Caliskan, M. Irfan
Summary: In this study, the effects of capping agents on the structural morphology and magnetic behaviors of ZnFe2O4 nanoparticles for magnetic particle imaging (MPI) applications were evaluated. It was found that capping agents such as polyacrylic acid, lauric acid, and malic acid played a significant role in controlling the size of the nanoparticles. The ZnFe2O4@PAA samples showed the shortest effective relaxation time (2.68 mu s) and excellent spatial resolution (FWHM, 5.89 mT) in MPI applications, as determined by a custom-designed magnetic particle relaxometer (MPR) at 9.9 kHz.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Applied
Azar Ramezanpour, Kazem Karami, Mahshid Kharaziha, Cristian Silvestru, Parvaneh Bayat
Summary: This study successfully prepared PAMAM dendron-functionalized MGG3-Pd nanocomposite with excellent catalytic activity and recyclability.
APPLIED ORGANOMETALLIC CHEMISTRY
(2021)
Article
Nanoscience & Nanotechnology
Shefali Arora, Subhajit Nandy, Mamta Latwal, Ganesh Pandey, Jitendra P. Singh, Keun H. Chae
Summary: Synthesis approaches affect the properties of ferrites and are used to design materials for specific applications. These approaches also impact the microstructure and local structure, ultimately affecting the physical and chemical properties of ferrites. Spectroscopic techniques are helpful in revealing this information.
ADVANCES IN NANO RESEARCH
(2022)
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
Chemistry, Physical
Atena Zonarsaghar, Mehdi Mousavi-Kamazani, Sahar Zinatloo-Ajabshir
Summary: This study synthesized cerium vanadate nanoparticles using ammonium metavanadate and cerium (III) nitrate hexahydrate, and investigated the effects of different conditions on the nanostructures. Ultrasonic irradiation resulted in fine spherical nanoparticles, while a two-step process produced uniform spherical nanostructures. The spherical nanoparticles of cerium vanadate exhibited a high discharge capacity for hydrogen electrochemical storage.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Materials Science, Ceramics
Pinki Punia, R. K. Aggarwal, Rakesh Kumar, Rakesh Dhar, Preeti Thakur, Atul Thakur
Summary: This study investigated the adsorption of heavy metals (Cd and Cr) from industrial wastewater using a series of Ca-substituted nickel zinc nanoferrites (CaxNi0.4Zn0.6-xFe2O4 (x = 0.1, 0.2, 0.3, 0.4, 0.5 and 0.6)) (CNZNFs). The effect of calcium doping and contact time on the adsorption of cadmium and chromium ions was examined, and the prepared nanoadsorbents showed high removal efficiencies for both Cd (98.25%) and Cr (51%) ions. Structural analysis confirmed the formation of spinel structured nanoparticles with varying crystallite size and porosity depending on the calcium concentration. The adsorption data was well fitted by the pseudo second order kinetic model and Langmuir isotherm model, with high adsorption efficiencies of Cd (128.20 mg/g) and Cr (23.54 mg/g) observed. The Langmuir isotherm model showed better fitting than the Freundlich isotherm model due to higher correlation coefficients for both heavy metals.
CERAMICS INTERNATIONAL
(2022)
Article
Engineering, Environmental
Kuldeep Roy, Vijayanand S. Moholkar
CHEMICAL ENGINEERING JOURNAL
(2020)
Article
Acoustics
Niharika Kashyap, Kuldeep Roy, Vijayanand S. Moholkar
ULTRASONICS SONOCHEMISTRY
(2020)
Article
Engineering, Chemical
Sankar Chakma, Pritam Kumar Dikshit, Manju Nagar Galodiya, Ardhendu Sekhar Giri, Vijayanand S. Moholkar
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2020)
Article
Energy & Fuels
Puneet Pathak, Ankush Gupta, Nishi Kant Bhardwaj, Arun Goyal, Vijayanand Suryakant Moholkar
Summary: This study focuses on the impact of formic acid-based organosolv (FAOS) pretreatment on sugarcane tops (SCT) for biomass fractionation. The best conditions for FAOS pretreatment of SCT were found to be 125 degrees Celsius pretreatment temperature, 90 min pretreatment time, and 1:7.5 solid to liquid ratio. Temperatures and times higher than these values adversely affected SCT fractionation.
BIOMASS CONVERSION AND BIOREFINERY
(2021)
Article
Energy & Fuels
Harrison Hihu Muigai, Urbashi Bordoloi, Rojimul Hussain, Karangat Ravi, Vijayanand S. Moholkar, Pankaj Kalita
Summary: This study synthesized and characterized biochars produced from water hyacinth, yellow oleander, and sugarcane bagasse, comparing their properties at 350°C and 550°C. The biochar produced from sugarcane bagasse at 550°C showed the best properties among all feedstocks.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Acoustics
Amit H. Batghare, Kuldeep Roy, Vijayanand S. Moholkar
ULTRASONICS SONOCHEMISTRY
(2020)
Article
Agricultural Engineering
Harrison Hihu Muigai, Bhaskar J. Choudhury, Pankaj Kalita, Vijayanand S. Moholkar
BIOMASS & BIOENERGY
(2020)
Article
Biochemical Research Methods
Kaustubh Chandrakant Khaire, Vijayanand Suryakant Moholkar, Arun Goyal
Summary: In this study, cellulose from sugarcane tops was extracted and characterized for purity, showing high purity suitable for bioethanol production. The separated cellulose demonstrated a fibrous structure, increased crystallinity index, and successful hydrolysis into total reducing sugar by specific enzymes, highlighting its potential as an alternative substrate for commercialization and bioethanol production.
PREPARATIVE BIOCHEMISTRY & BIOTECHNOLOGY
(2021)
Article
Multidisciplinary Sciences
Mohamed S. Challiwala, Hanif A. Choudhury, Dingdi Wang, Mahmoud M. El-Halwagi, Eric Weitz, Nimir O. Elbashir
Summary: This study demonstrates two patented processes for converting CO2 and CH4 into solid carbon as a potential carbon capture and sequestration technique. The first process can reduce energy requirement by at least 50% and achieve at least 65% CO2 conversion, while the second process offers an alternative pathway for the regeneration/reactivation of spent DRM/CARGEN catalyst by using CO2.
SCIENTIFIC REPORTS
(2021)
Article
Chemistry, Physical
Shaik Afzal, Anuj Prakash, Patrick Littlewood, Hanif Choudhury, Zafar Khan Ghouri, Said Mansour, Dingdi Wang, Tobin Marks, Eric Weitz, Peter Stair, Nimir Elbashir
Summary: After thermal treatment, a commercial nickel catalyst coated with alumina exhibited higher activity and carbon formation rates compared to an uncoated catalyst in hydrocarbon reforming processes. Various analytical techniques suggested that this unexpected phenomenon could be attributed to the unique characteristics of the alumina overcoat, including the formation of a thicker 'quasi-ALD' layer, crystallization into nanofibers, and the ability to isolate carbon as carbon nano-onions (CNOs).
Review
Environmental Sciences
Rohit Chauhan, G. Kumaravel Dinesh, Bablu Alawa, Sankar Chakma
Summary: The paper focuses on the degradation of recalcitrant pollutants using the sono-photo-ferrioxalate system and provides a critical analysis of process parameters that influence mineralization efficiency. The primary operating parameters that affect the kinetics in the sono-photo-ferrioxalate system are solution pH, temperature, molar ratio of Fe3+/C2O42-, H2O2 concentration, source of light, ultrasound intensity, dissolved gases, and size of cavitation bubble. Multiple oxidizing radicals are generated in this system, such as HO center dot, HO2 center dot, C2O4 center dot-, CO2 center dot- and O-2(center dot-), contributing to degradation.
Article
Biochemistry & Molecular Biology
Kedar Sharma, Sudhir Morla, Kaustubh Chandrakant Khaire, Abhijeet Thakur, Vijayanand Suryakant Moholkar, Sachin Kumar, Arun Goyal
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2020)
Proceedings Paper
Materials Science, Multidisciplinary
Neha Singh, Arun Goyal, Vijayanand S. Moholkar
MATERIALS TODAY-PROCEEDINGS
(2020)
Article
Engineering, Environmental
Niharika Kashyap, Kuldeep Roy, Vijayanand S. Moholkar
CHEMICAL ENGINEERING JOURNAL
(2020)
Article
Energy & Fuels
Debarshi Mallick, Pinakeswar Mahanta, Vijayanand S. Moholkar
JOURNAL OF THE ENERGY INSTITUTE
(2020)
