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Andersen HL, Granados-Miralles C, Jensen KMØ, Saura-Múzquiz M, Christensen M. The Chemistry of Spinel Ferrite Nanoparticle Nucleation, Crystallization, and Growth. ACS NANO 2024; 18:9852-9870. [PMID: 38526912 PMCID: PMC11008356 DOI: 10.1021/acsnano.3c08772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 03/15/2024] [Accepted: 03/21/2024] [Indexed: 03/27/2024]
Abstract
The nucleation, crystallization, and growth mechanisms of MnFe2O4, CoFe2O4, NiFe2O4, and ZnFe2O4 nanocrystallites prepared from coprecipitated transition metal (TM) hydroxide precursors treated at sub-, near-, and supercritical hydrothermal conditions have been studied by in situ X-ray total scattering (TS) with pair distribution function (PDF) analysis, and in situ synchrotron powder X-ray diffraction (PXRD) with Rietveld analysis. The in situ TS experiments were carried out on 0.6 M TM hydroxide precursors prepared from aqueous metal chloride solutions using 24.5% NH4OH as the precipitating base. The PDF analysis reveals equivalent nucleation processes for the four spinel ferrite compounds under the studied hydrothermal conditions, where the TMs form edge-sharing octahedrally coordinated hydroxide units (monomers/dimers and in some cases trimers) in the aqueous precursor, which upon hydrothermal treatment nucleate through linking by tetrahedrally coordinated TMs. The in situ PXRD experiments were carried out on 1.2 M TM hydroxide precursors prepared from aqueous metal nitrate solutions using 16 M NaOH as the precipitating base. The crystallization and growth of the nanocrystallites were found to progress via different processes depending on the specific TMs and synthesis temperatures. The PXRD data show that MnFe2O4 and CoFe2O4 nanocrystallites rapidly grow (typically <1 min) to equilibrium sizes of 20-25 nm and 10-12 nm, respectively, regardless of applied temperature in the 170-420 °C range, indicating limited possibility of targeted size control. However, varying the reaction time (0-30 min) and temperature (150-400 °C) allows different sizes to be obtained for NiFe2O4 (3-30 nm) and ZnFe2O4 (3-12 nm) nanocrystallites. The mechanisms controlling the crystallization and growth (nucleation, growth by diffusion, Ostwald ripening, etc.) were examined by qualitative analysis of the evolution in refined scale factor (proportional to extent of crystallization) and mean crystallite volume (proportional to extent of growth). Interestingly, lower kinetic barriers are observed for the formation of the mixed spinels (MnFe2O4 and CoFe2O4) compared to the inverse (NiFe2O4) and normal (ZnFe2O4) spinel structured compounds, suggesting that the energy barrier for formation may be lowered when the TMs have no site preference.
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Affiliation(s)
- Henrik L. Andersen
- Instituto
de Ciencia de Materiales de Madrid (ICMM), CSIC, Madrid 28049, Spain
- Facultad
de Ciencias Físicas, Universidad
Complutense de Madrid, Madrid 28040, Spain
| | | | - Kirsten M. Ø. Jensen
- Department
of Chemistry and Nanoscience Center, University
of Copenhagen, København Ø, 2100, Denmark
| | - Matilde Saura-Múzquiz
- Facultad
de Ciencias Físicas, Universidad
Complutense de Madrid, Madrid 28040, Spain
| | - Mogens Christensen
- Department
of Chemistry and Interdisciplinary Nanoscience Center, Aarhus University, Aarhus C, 8000, Denmark
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Baričić M, Maltoni P, Barucca G, Yaacoub N, Omelyanchik A, Canepa F, Mathieu R, Peddis D. Chemical engineering of cationic distribution in spinel ferrite nanoparticles: the effect on the magnetic properties. Phys Chem Chem Phys 2024; 26:6325-6334. [PMID: 38314612 DOI: 10.1039/d3cp06029b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2024]
Abstract
A set of ∼9 nm CoFe2O4 nanoparticles substituted with Zn2+ and Ni2+ was prepared by thermal decomposition of metallic acetylacetonate precursors to correlate the effects of replacement of Co2+ with the resulting magnetic properties. Due to the distinct selectivity of these cations for the spinel ferrite crystal sites, we show that it is possible to tailor the magnetic anisotropy, saturation magnetization, and interparticle interactions of the nanoparticles during the synthesis stage. This approach unlocks new possibilities for enhancing the performance of spinel ferrite nanoparticles in specific applications. Particularly, our study shows that the replacement of Co2+ by 48% of Zn2+ ions led to an increase in saturation magnetization of approximately 40% from ∼103 A m2 kg-1 to ∼143 A m2 kg-1, whereas the addition of Ni2+ at a similar percentage led to an ∼30% decrease in saturation magnetization to 68-72 A m2 kg-1. The results of calculations based on the two-sublattice Néel model of magnetization match the experimental findings, demonstrating the model's effectiveness in the strategic design of spinel ferrite nanoparticles with targeted magnetic properties through doping/inversion degree engineering.
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Affiliation(s)
- Miran Baričić
- Dipartimento di Chimica e Chimica Industriale & INSTM, nM2-Lab, Università degli Studi di Genova, Via Dodecaneso 31, Genova, 1-16146, Italy.
| | - Pierfrancesco Maltoni
- Department of Materials Science and Engineering, Uppsala University, Box 35, Uppsala, 751 03, Sweden.
| | - Gianni Barucca
- Dipartimento di Scienze e Ingegneria della Materia, Dell'ambiente ed Urbanistica, Università Politecnica delle Marche, via Brecce Bianche 12, Ancona, Italy
| | - Nader Yaacoub
- Institut des Molécules et Mateŕiaux du Mans, CNRS UMR-6283, Le Mans Université, F-72085 Le Mans, France
| | - Alexander Omelyanchik
- Dipartimento di Chimica e Chimica Industriale & INSTM, nM2-Lab, Università degli Studi di Genova, Via Dodecaneso 31, Genova, 1-16146, Italy.
- Institute of Structure of Matter (ISM), nM2-Lab, National Research Council (CNR), Via Salaria, Km 29,300 00015 Monterotondo Scalo, Roma, Italy
| | - Fabio Canepa
- Dipartimento di Chimica e Chimica Industriale & INSTM, nM2-Lab, Università degli Studi di Genova, Via Dodecaneso 31, Genova, 1-16146, Italy.
| | - Roland Mathieu
- Department of Materials Science and Engineering, Uppsala University, Box 35, Uppsala, 751 03, Sweden.
| | - Davide Peddis
- Dipartimento di Chimica e Chimica Industriale & INSTM, nM2-Lab, Università degli Studi di Genova, Via Dodecaneso 31, Genova, 1-16146, Italy.
- Institute of Structure of Matter (ISM), nM2-Lab, National Research Council (CNR), Via Salaria, Km 29,300 00015 Monterotondo Scalo, Roma, Italy
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3
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Sandemann JR, Støckler KAH, Wang X, Chakoumakos BC, Iversen BB. Benchmark Crystal Structure of Defect-Free Spinel ZnFe 2O 4. J Am Chem Soc 2023; 145:21053-21065. [PMID: 37706460 DOI: 10.1021/jacs.3c07334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/15/2023]
Abstract
Accurate structural models are of paramount importance for elucidating structure-property relationships in functional materials. Spinels (AB2O4) form a highly important family of materials with complex crystal structures, and subtle structural details have a critical bearing on understanding their physical properties. In some spinels, the space group symmetry is debated, and in general, point defects such as cation inversion and interstitials add complexity. Most studies of spinels concern powder materials, and this challenges deep structural characterization. In fact, most published spinel structures have dubious atomic displacement parameters (ADPs), which is a typical sign of problematic structural description in the refinement of diffraction data. Here, we use various X-ray and neutron diffraction techniques to establish a benchmark crystal structure for the essentially defect-free spinel ferrite ZnFe2O4, which is a widely studied frustrated magnet. It is shown that the appearance of Fd3̅m forbidden reflections in the ZnFe2O4 single-crystal neutron diffraction data is an artifact of multiple scattering rather than the loss of inversion symmetry. We then provide benchmark ADPs and demonstrate how strongly these parameters affect the refined cation inversion. The ADPs reported here may be used as reference data to test the soundness of refined structural models, possibly to constrain those based on suboptimal data quality, and thereby provide a more accurate fundamental understanding of the structure-property relationship in spinel-type materials.
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Affiliation(s)
- Jonas Ruby Sandemann
- Center for Integrated Materials Research, Department of Chemistry and iNANO, Aarhus University, DK-8000 Aarhus C, Denmark
| | | | - Xiaoping Wang
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Bryan C Chakoumakos
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Bo Brummerstedt Iversen
- Center for Integrated Materials Research, Department of Chemistry and iNANO, Aarhus University, DK-8000 Aarhus C, Denmark
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4
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Hussein MM, Saafan SA, Abosheiasha HF, Zhou D, Klygach DS, Vakhitov MG, Trukhanov SV, Trukhanov AV, Zubar TI, Astapovich KA, Zakaly HMH, Darwish MA. Crystal structure and peculiarities of microwave parameters of Co 1-xNi xFe 2O 4 nano spinel ferrites. RSC Adv 2023; 13:26879-26891. [PMID: 37692354 PMCID: PMC10483272 DOI: 10.1039/d3ra04557a] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Accepted: 09/01/2023] [Indexed: 09/12/2023] Open
Abstract
Nanosized spinel ferrites Co1-xNixFe2O4 (where x = 0.0-1.0) or CNFO have been produced using a chemical method. The crystal structure's characteristics have been determined through the utilization of X-ray diffraction (XRD). It has been demonstrated that all samples have a single phase with cubic syngony (space group Fd3̄m). The lattice parameter and unit cell volume behavior correlate well with the average ionic radii of Co2+ and Ni2+ ions and their coordination numbers. Thus, an increase in the Ni2+ content from x = 0.0 to x = 1.0 leads to a decrease in the lattice parameter (from 8.3805 to 8.3316 Å) and unit cell volume (from 58.86 to 57.83 Å3). Elastic properties have been investigated using Fourier transform infrared (FTIR) analysis. The peculiarities of the microwave properties have been analyzed by the measured S-parameters in the range of 8-18 GHz. It was assumed that the energy losses due to reflection are a combination of electrical and magnetic losses due to polarization processes (dipole polarization) and magnetization reversal processes in the region of inter-resonant processes. A significant attenuation of the reflected wave energy (-10 … -21.8 dB) opens broad prospects for practical applications.
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Affiliation(s)
- Marwa M Hussein
- Physics Department, Faculty of Science, Tanta University Tanta 31527 Egypt
| | - Samia A Saafan
- Physics Department, Faculty of Science, Tanta University Tanta 31527 Egypt
| | - H F Abosheiasha
- Engineering Physics and Mathematics Department, Faculty of Engineering, Tanta University Tanta 31511 Egypt
| | - Di Zhou
- Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, School of Electronic Science and Engineering, Xi'an Jiaotong University Xi'an 710049 China
| | - D S Klygach
- South Ural State University Chelyabinsk 454080 Russia
| | - M G Vakhitov
- South Ural State University Chelyabinsk 454080 Russia
| | - S V Trukhanov
- Smart Sensor Laboratory, National University of Science and Technology MISIS 119049 Moscow 4, Leninsky ave. Russia
- SSPA "Scientific and Practical Materials Research Centre of NAS of Belarus" 220072 Minsk 19, P. Brovki str. Belarus
| | - A V Trukhanov
- Smart Sensor Laboratory, National University of Science and Technology MISIS 119049 Moscow 4, Leninsky ave. Russia
- SSPA "Scientific and Practical Materials Research Centre of NAS of Belarus" 220072 Minsk 19, P. Brovki str. Belarus
- L.N. Gumilyov Eurasian National University Astana 010000 Kazakhstan
| | - T I Zubar
- SSPA "Scientific and Practical Materials Research Centre of NAS of Belarus" 220072 Minsk 19, P. Brovki str. Belarus
| | - K A Astapovich
- SSPA "Scientific and Practical Materials Research Centre of NAS of Belarus" 220072 Minsk 19, P. Brovki str. Belarus
| | - Hesham M H Zakaly
- Istinye University, Faculty of Engineering and Natural Sciences, Computer Engineering Department Istanbul 34396 Turkey
- Institute of Physics and Technology, Ural Federal University 620002 Yekaterinburg Russia
| | - Moustafa A Darwish
- Physics Department, Faculty of Science, Tanta University Tanta 31527 Egypt
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5
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Salih SJ, Mahmood WM. Review on magnetic spinel ferrite (MFe 2O 4) nanoparticles: From synthesis to application. Heliyon 2023; 9:e16601. [PMID: 37274649 PMCID: PMC10238938 DOI: 10.1016/j.heliyon.2023.e16601] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 05/09/2023] [Accepted: 05/22/2023] [Indexed: 06/06/2023] Open
Abstract
Magnetic spinel ferrite materials offer various applications in biomedical, water treatment, and industrial electronic devices, which has sparked a lot of attention. This review focuses on the synthesis, characterization, and applications of spinel ferrites in a variety of fields, particularly spinel ferrites with doping. Spinel ferrites nanoparticles doped with the elements have remarkable electrical and magnetic properties, allowing them to be used in a wide range of applications such as magnetic fields, microwave absorbers, and biomedicine. Furthermore, the physical properties of spinel ferrites can be modified by substituting metallic atoms, resulting in improved performance. The most recent and noteworthy applications of magnetic ferrite nanoparticles are reviewed and discussed in this review. This review goes over the synthesis, doping and applications of different types of metal ferrite nanoparticles, as well as views on how to choose the appropriate magnetic ferrites based on the intended application.
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Affiliation(s)
- Shameran Jamal Salih
- Department of Chemistry, Koya University Koya KOY45, Kurdistan Region – F.R, Iraq
- Department of Pharmaceutical Basic Sciences, Faculty of Pharmacy, Tishk International University, KRG, Erbil, Iraq
| | - Wali M. Mahmood
- Department of Chemistry, Koya University Koya KOY45, Kurdistan Region – F.R, Iraq
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6
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Kumar A, Gora MK, Lal G, Choudhary BL, Meena PL, Dhaka RS, Singhal RK, Kumar S, Dolia SN. Impact of Gd 3+ doping on structural, electronic, magnetic, and photocatalytic properties of MnFe 2O 4 nanoferrites and application in dye-polluted wastewater remediation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:18820-18842. [PMID: 36219287 DOI: 10.1007/s11356-022-23420-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 09/29/2022] [Indexed: 06/16/2023]
Abstract
The present work focuses on developing Gd-doped Mn spinel nanoferrites and their potential application in the photodegradation of water pollutants. The impact of Gd3+ ion substitution on structural, electronic, and magnetic characteristics of manganese ferrites has been studied. Nanocrystalline samples of MnGdxFe2-xO4 (x = 0.0 to 0.10, in step size of 0.02) ferrites were prepared via sol-gel self-ignition route. The Rietveld, XPS, HRTEM, and SAED characterization methods confirmed the formation of phase pure ferrite nanoparticles (~ 8-22 nm) in the cubic spinel structure. The Gd3+ content in these nanoferrites responded to a systematic reduction in the size of nanocrystallites and an upsurge in the density of nanoferrites. The XPS study revealed fine assimilation of constituent elements in the fcc lattice and ruled out impurities in the nanoferrites. The Fe and the Gd ions were found to be in Fe3+ and Gd3+ states, respectively. While a major fraction of the Mn ions were found to be in the Mn2+ state, a small fraction of Mn4+ ions was observed on the surface of nanoparticles. The nanoferrites were found to exhibit a soft ferromagnetic state from 300 to 20 K limits. The highest saturation magnetization was observed for x = 0.02 (MS = 66.6 emu/g at 20 K). The observed magnetic properties can be understood with the competing (Fe3+ and Mn2+)A-O2--[Fe3+, Mn2+, and Gd3+]B superexchange interactions and magnetocrystalline anisotropy. Due to the small band gap energy of Gd-doped Mn ferrites than that of the pure Mn ferrite, they have demonstrated excellent photocatalytic activity for the degradation of methylene blue (MB) dye under visible light illumination. As much as 96.35% of the MB dye was found to get degraded in 70 min of light illumination over synthesized nanoparticles and the photodegradation reaction followed pseudo-first-order kinetics. The increased optical absorbance due to lower band gap, suppressed recombination rate of charge carriers, and enhanced charge mobility make them effective visible light active photocatalysts. This study revealed that the electronic, optical, and magnetic properties of MnFe2O4 nanoferrites could be easily tuned by varying the Gd3+ content and the prepared Gd-doped MnFe2O4 nanomaterials have boundless potential to be utilized in the future making promising active photocatalysts and degradation of harmful industrial dyes for enhanced protection in the fields of environment and health care.
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Affiliation(s)
- Arvind Kumar
- Department of Physics, University of Rajasthan, Jaipur, 302004, Rajasthan, India.
| | - Mahendra Kumar Gora
- Department of Physics, University of Rajasthan, Jaipur, 302004, Rajasthan, India
| | - Ganesh Lal
- Department of Physics, Mohanlal Sukhadia University, Udaipur, 313002, Rajasthan, India
| | | | - Parmeshwar Lal Meena
- Department of Chemistry, University of Rajasthan, Jaipur, 302004, Rajasthan, India
| | - Rajendra Singh Dhaka
- Department of Physics, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
| | - Rishi Kumar Singhal
- Department of Physics, University of Rajasthan, Jaipur, 302004, Rajasthan, India
| | - Sudhish Kumar
- Department of Physics, Mohanlal Sukhadia University, Udaipur, 313002, Rajasthan, India
| | - Satya Narain Dolia
- Department of Physics, University of Rajasthan, Jaipur, 302004, Rajasthan, India
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7
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Henry K, Ahlburg JV, Andersen HL, Granados-Miralles C, Stingaciu M, Saura-Múzquiz M, Christensen M. In-depth investigations of size and occupancies in cobalt ferrite nanoparticles by joint Rietveld refinements of X-ray and neutron powder diffraction data. J Appl Crystallogr 2022; 55:1336-1350. [PMID: 36249502 PMCID: PMC9533760 DOI: 10.1107/s1600576722008123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 08/14/2022] [Indexed: 12/02/2022] Open
Abstract
Combined neutron and X-ray powder diffraction investigations of CoFe2O4 are reported, aimed at investigating the robustness, reproducibility and reliability of structural parameters from Rietveld refinement. Powder X-ray diffraction (PXRD) and neutron powder diffraction (NPD) have been used to investigate the crystal structure of CoFe2O4 nanoparticles prepared via different hydrothermal synthesis routes, with particular attention given to accurately determining the spinel inversion degrees. The study is divided into four parts. In the first part, the investigations focus on the influence of using different diffraction pattern combinations (NPD, Cu-source PXRD and Co-source PXRD) for the structural modelling. It is found that combining PXRD data from a Co source with NPD data offers a robust structural model. The second part of the study evaluates the reproducibility of the employed multipattern Rietveld refinement procedure using different data sets collected on the same sample, as well as on equivalently prepared samples. The refinement procedure gives reproducible results and reveals that the synthesis method is likewise reproducible since only minor differences are noted between the samples. The third part focuses on the structural consequences of (i) the employed heating rate (achieved using three different hydrothermal reactor types) and (ii) changing the cobalt salt in the precursors [aqueous salt solutions of Co(CH3COOH)2, Co(NO3)2 and CoCl2] in the synthesis. It is found that increasing the heating rate causes a change in the crystal structure (unit cell and crystallite sizes) while the Co/Fe occupancy and magnetic parameters remain similar in all cases. Also, changing the type of cobalt salt does not alter the final crystal/magnetic structure of the CoFe2O4 nanoparticles. The last part of this study is a consideration of the chemicals and parameters used in the synthesis of the different samples. All the presented samples exhibit a similar crystal and magnetic structure, with only minor deviations. It is also evident that the refinement method used played a key role in the description of the sample.
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8
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Zakaly HMH, Issa SAM, Saudi HA, Alharshan GA, Uosif MAM, Henaish AMA. Structure, Mössbauer, electrical, and γ-ray attenuation-properties of magnesium zinc ferrite synthesized co-precipitation method. Sci Rep 2022; 12:15495. [PMID: 36109533 PMCID: PMC9478136 DOI: 10.1038/s41598-022-17311-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 07/25/2022] [Indexed: 12/24/2022] Open
Abstract
For technical and radioprotection causes, it has become essential to find new trends of smart materials which used as protection from ionizing radiation. To overcome the undesirable properties in lead aprons and provide the proper or better shielding properties against ionizing radiation, the tendency is now going to use ferrite as a shielding material. The co-precipitation method was utilized to prevent any foreign phases in the investigated MZN nano-ferrite. X-ray diffraction (XRD) and Fourier transmission infrared spectroscopy (FTIR) methods were used to analyze the manufactured sample. As proven by XRD and FTIR, the studied materials have their unique spinel phase with cubic structure Fd3m space group. The DC resistivity of Mg-Zn ferrite was carried out in the temperature range (77-295 K), and its dependence on temperature indicates that there are different charge transport mechanisms. The Mössbauer spectra analysis confirmed that the ferrimagnetic to superparamagnetic phase transition behaviour depends on Zn concentration. The incorporation of Zn to MZF enhanced the nano-ferrite density, whereas the addition of different Zn-oxides reduced the density for nano-ferrite samples. This variation in density changed the radiation shielding results. The sample containing high Zn (MZF-0.5) gives us better results in radiation shielding properties at low gamma, so this sample is superior in shielding results for charged particles at low energy. Finally, the possibility to use MZN nano-ferrite with various content in different ionizing radiation shielding fields can be concluded.
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Affiliation(s)
- Hesham M. H. Zakaly
- grid.412761.70000 0004 0645 736XInstitute of Physics and Technology, Ural Federal University, 620003 Ekaterinburg, Russia ,grid.411303.40000 0001 2155 6022Physics Department, Faculty of Science, Al-Azhar University, Assiut Branch, Assiut, 71524 Egypt
| | - Shams A. M. Issa
- grid.411303.40000 0001 2155 6022Physics Department, Faculty of Science, Al-Azhar University, Assiut Branch, Assiut, 71524 Egypt ,grid.440760.10000 0004 0419 5685Physics Department, Faculty of Science, University of Tabuk, Tabuk, 71451 Saudi Arabia
| | - H. A. Saudi
- grid.411303.40000 0001 2155 6022Department of Physics, Faculty of Science, Al-Azhar University (Girls’ Branch), Nasr City, Egypt
| | - Gharam A. Alharshan
- grid.56302.320000 0004 1773 5396Physics Department, College of Science, Princess Nourah Bint, Abdulrahman University, P. O. Box. 84428, Riyadh, 11671 Saudi Arabia
| | - M. A. M. Uosif
- grid.411303.40000 0001 2155 6022Physics Department, Faculty of Science, Al-Azhar University, Assiut Branch, Assiut, 71524 Egypt ,grid.440748.b0000 0004 1756 6705Physics Department, College of Science, Jouf University, P. O. 2014, Sakaka, Al-Jouf Saudi Arabia
| | - A. M. A. Henaish
- grid.412761.70000 0004 0645 736XInstitute of Physics and Technology, Ural Federal University, 620003 Ekaterinburg, Russia ,grid.412258.80000 0000 9477 7793Physics Department, Faculty of Science, Tanta University, Tanta, 31527 Egypt
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Alfareed TM, Slimani Y, Almessiere MA, Nawaz M, Khan FA, Baykal A, Al-Suhaimi EA. Biocompatibility and colorectal anti-cancer activity study of nanosized BaTiO 3 coated spinel ferrites. Sci Rep 2022; 12:14127. [PMID: 35986070 PMCID: PMC9391367 DOI: 10.1038/s41598-022-18306-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Accepted: 08/09/2022] [Indexed: 11/08/2022] Open
Abstract
In the present work, different nanoparticles spinel ferrite series (MFe2O4, Co0.5M0.5Fe2O4; M = Co, Mn, Ni, Mg, Cu, or Zn) have been obtained via sonochemical approach. Then, sol-gel method was employed to design core-shell magnetoelectric nanocomposites by coating these nanoparticles with BaTiO3 (BTO). The structure and morphology of the prepared samples were examined by X-ray powder diffraction (XRD), scanning electron microscope (SEM) coupled with energy dispersive X-ray spectroscopy (EDX), high-resolution transmission electron microscope (HR-TEM), and zeta potential. XRD analysis showed the presence of spinel ferrite and BTO phases without any trace of a secondary phase. Both phases crystallized in the cubic structure. SEM micrographs illustrated an agglomeration of spherical grains with nonuniformly diphase orientation and different degrees of agglomeration. Moreover, HR-TEM revealed interplanar d-spacing planes that are in good agreement with those of the spinel ferrite phase and BTO phase. These techniques along with EDX analyses confirmed the successful formation of the desired nanocomposites. Zeta potential was also investigated. The biological influence of (MFe2O4, CoMFe) MNPs and core-shell (MFe2O4@BTO, CoMFe@BTO) magnetoelectric nanocomposites were examined by MTT and DAPI assays. Post 48 h of treatments, the anticancer activity of MNPs and MENCs was investigated on human colorectal carcinoma cells (HCT-116) against the cytocompatibility of normal non-cancerous cells (HEK-293). It was established that MNPs possess anti-colon cancer capability while MENCs exhibited a recovery effect due to the presence of a protective biocompatible BTO layer. RBCs hemolytic effect of NPs has ranged from non- to low-hemolytic effect. This effect that could be attributed to the surface charge from zeta potential, also the CoMnFe possesses the stable and lowest zeta potential in comparison with CoFe2O4 and MnFe2O4 also to the protective effect of shell. These findings open up wide prospects for biomedical applications of MNPs as anticancer and MENCs as promising drug nanocarriers.
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Affiliation(s)
- Tahani M Alfareed
- Master Program of Nanotechnology, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam, 31441, Saudi Arabia
| | - Yassine Slimani
- Department of Biophysics, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam, 31441, Saudi Arabia
| | - Munirah A Almessiere
- Department of Biophysics, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam, 31441, Saudi Arabia
- Department of Physics, College of Science, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam, 31441, Saudi Arabia
| | - Muhammad Nawaz
- Department of Nanomedicine Research, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam, 31441, Saudi Arabia
| | - Firdos A Khan
- Department of Stem Cells, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam, 31441, Saudi Arabia
| | - Abdulhadi Baykal
- Department of Nanomedicine Research, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam, 31441, Saudi Arabia
| | - Ebtesam A Al-Suhaimi
- Biology Department, College of Science & Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam, 31441, Saudi Arabia.
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Huang R, Zhou X, Chen G, Su L, Liu Z, Zhou P, Weng J, Min Y. Advances of functional nanomaterials for magnetic resonance imaging and biomedical engineering applications. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2022; 14:e1800. [PMID: 35445588 DOI: 10.1002/wnan.1800] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 03/21/2022] [Accepted: 03/25/2022] [Indexed: 11/12/2022]
Abstract
Functional nanomaterials have been widely used in biomedical fields due to their good biocompatibility, excellent physicochemical properties, easy surface modification, and easy regulation of size and morphology. Functional nanomaterials for magnetic resonance imaging (MRI) can target specific sites in vivo and more easily detect disease-related specific biomarkers at the molecular and cellular levels than traditional contrast agents, achieving a broad application prospect in MRI. This review focuses on the basic principles of MRI, the classification, synthesis and surface modification methods of contrast agents, and their clinical applications to provide guidance for designing novel contrast agents and optimizing the contrast effect. Furthermore, the latest biomedical advances of functional nanomaterials in medical diagnosis and disease detection, disease treatment, the combination of diagnosis and treatment (theranostics), multi-model imaging and nanozyme are also summarized and discussed. Finally, the bright application prospects of functional nanomaterials in biomedicine are emphasized and the urgent need to achieve significant breakthroughs in the industrial transformation and the clinical translation is proposed. This article is categorized under: Nanotechnology Approaches to Biology > Nanoscale Systems in Biology Diagnostic Tools > Diagnostic Nanodevices Therapeutic Approaches and Drug Discovery > Nanomedicine for Oncologic Disease.
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Affiliation(s)
- Ruijie Huang
- Department of Endocrinology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.,Department of Chemistry, University of Science and Technology of China, Hefei, China
| | - Xingyu Zhou
- Department of Chemistry, University of Science and Technology of China, Hefei, China
| | - Guiyuan Chen
- Department of Chemistry, University of Science and Technology of China, Hefei, China
| | - Lanhong Su
- Department of Chemistry, University of Science and Technology of China, Hefei, China
| | - Zhaoji Liu
- Department of Chemistry, University of Science and Technology of China, Hefei, China
| | - Peijie Zhou
- Department of Radiation Oncology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Jianping Weng
- Department of Endocrinology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Yuanzeng Min
- Department of Endocrinology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.,Department of Chemistry, University of Science and Technology of China, Hefei, China
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11
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Dutta S, Kumar P, Yadav S, Dixit R, Sharma RK. Recyclable magnetically retrievable nanocatalysts for C–heteroatom bond formation reactions. PHYSICAL SCIENCES REVIEWS 2022. [DOI: 10.1515/psr-2021-0101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
During recent years, magnetic separation has proven to be a highly indispensable and sustainable tool for facile separation of catalysts from the reaction medium with the aid of only an external magnetic force that precludes the requirement of energy intensive, solvent based centrifugation or filtration techniques. Extensive research in the area of catalysis has clearly divulged that while designing any catalyst, the foremost features that need to be paid due attention to include high activity, ready recoverability and good reusability. Fortunately, the magnetic nanocatalysts involving a superparamagnetic core material that could comprise of iron oxides such as magnetite, maghemite or hematite or mixed ferrites (CoFe2O4, CuFe2O4) have offered bright prospects of designing the ideal catalysts by proving their efficacy as strong support material that could be further engineered with various tools of nanotechnology and efficiently catalyze various C–heterobond formation reactions. This chapter provides succinct overview of all the approaches utilized for fabricating different types of magnetic nanoparticles and strategies adopted for imparting them durability. The prime forte however remains to exclusively showcase the applications of the various types of magnetic nanocatalysts in C–O, C–N, C–S and miscellaneous (C–Se, C–Te) bond formation reactions which are anticipated to benefit the synthetic community on a broad spectrum by helping them rationalize and analyze the key features that need to be taken into account, while developing these magical nanostructured catalytic systems for boosting the green bond formation reactions/transformations.
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Affiliation(s)
- Sriparna Dutta
- Green Chemistry Network Centre, Department of Chemistry , University of Delhi , Delhi - 110007 , India
- Hindu College, Department of Chemistry , University of Delhi , Delhi - 110007 , India
| | - Prashant Kumar
- Department of Chemistry , SRM University Delhi-NCR , Sonepat , Haryana , India
| | - Sneha Yadav
- Green Chemistry Network Centre, Department of Chemistry , University of Delhi , Delhi - 110007 , India
| | - Ranjana Dixit
- Ramjas College, Department of Chemistry , University of Delhi , Delhi - 110007 , India
| | - Rakesh Kumar Sharma
- Green Chemistry Network Centre, Department of Chemistry , University of Delhi , Delhi - 110007 , India
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12
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Advances in the Synthesis and Application of Magnetic Ferrite Nanoparticles for Cancer Therapy. Pharmaceutics 2022; 14:pharmaceutics14050937. [PMID: 35631523 PMCID: PMC9145864 DOI: 10.3390/pharmaceutics14050937] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 04/16/2022] [Accepted: 04/20/2022] [Indexed: 12/12/2022] Open
Abstract
Cancer is among the leading causes of mortality globally, with nearly 10 million deaths in 2020. The emergence of nanotechnology has revolutionised treatment strategies in medicine, with rigorous research focusing on designing multi-functional nanoparticles (NPs) that are biocompatible, non-toxic, and target-specific. Iron-oxide-based NPs have been successfully employed in theranostics as imaging agents and drug delivery vehicles for anti-cancer treatment. Substituted iron-oxides (MFe2O4) have emerged as potential nanocarriers due to their unique and attractive properties such as size and magnetic tunability, ease of synthesis, and manipulatable properties. Current research explores their potential use in hyperthermia and as drug delivery vehicles for cancer therapy. Significantly, there are considerations in applying iron-oxide-based NPs for enhanced biocompatibility, biodegradability, colloidal stability, lowered toxicity, and more efficient and targeted delivery. This review covers iron-oxide-based NPs in cancer therapy, focusing on recent research advances in the use of ferrites. Methods for the synthesis of cubic spinel ferrites and the requirements for their considerations as potential nanocarriers in cancer therapy are discussed. The review highlights surface modifications, where functionalisation with specific biomolecules can deliver better efficiency. Finally, the challenges and solutions for the use of ferrites in cancer therapy are summarised.
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Abdel Maksoud MIA, Fahim RA, Bedir AG, Osman AI, Abouelela MM, El-Sayyad GS, Elkodous MA, Mahmoud AS, Rabee MM, Al-Muhtaseb AH, Rooney DW. Engineered magnetic oxides nanoparticles as efficient sorbents for wastewater remediation: a review. ENVIRONMENTAL CHEMISTRY LETTERS 2022; 20:519-562. [DOI: 10.1007/s10311-021-01351-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Accepted: 10/21/2021] [Indexed: 09/02/2023]
Abstract
AbstractThe rapid urbanization and industrialization is causing worldwide water pollution, calling for advanced cleaning methods. For instance, pollutant adsorption on magnetic oxides is efficient and very practical due to the easy separation from solutions by an magnetic field. Here we review the synthesis and performance of magnetic oxides such as iron oxides, spinel ferrites, and perovskite oxides for water remediation. We present structural, optical, and magnetic properties. Magnetic oxides are also promising photocatalysts for the degradation of organic pollutants. Antimicrobial activities and adsorption of heavy metals and radionucleides are also discussed.
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14
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Nguyen TKA, Kuncoro EP, Doong RA. Manganese ferrite decorated N-doped polyacrylonitrile-based carbon nanofiber for the enhanced capacitive deionization. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2021.139488] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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15
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Hu ZT, Jin ZY, Gong SY, Wei X, Zhao J, Hu M, Zhao J, Chen Z, Pan Z, Li X. Supermagnetic Mn-substituted ZnFe 2O 4 with AB-site hybridization for the ultra-effective catalytic degradation of azoxystrobin. Catal Sci Technol 2022. [DOI: 10.1039/d2cy00142j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Magnetic Zn0.25Mn0.75Fe2O4 was applied to the degradation of azoxystrobin in a Fenton-like system, and the performance was enhanced via crystal structure control.
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Affiliation(s)
- Zhong-Ting Hu
- College of Environment, Zhejiang University of Technology (ZJUT), Hangzhou 310014, China
- Industrial Catalysis Institute, ZJUT, Hangzhou 310014, China
| | - Zi-Yan Jin
- College of Environment, Zhejiang University of Technology (ZJUT), Hangzhou 310014, China
| | - Si-Yan Gong
- College of Environment, Zhejiang University of Technology (ZJUT), Hangzhou 310014, China
| | - Xiuzhen Wei
- College of Environment, Zhejiang University of Technology (ZJUT), Hangzhou 310014, China
| | - Jia Zhao
- Industrial Catalysis Institute, ZJUT, Hangzhou 310014, China
| | - Mian Hu
- College of Environment, Zhejiang University of Technology (ZJUT), Hangzhou 310014, China
| | - Jun Zhao
- Department of Biology, Hong Kong Baptist University, Hong Kong SAR
| | - Zhong Chen
- School of Material Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Zhiyan Pan
- College of Environment, Zhejiang University of Technology (ZJUT), Hangzhou 310014, China
| | - Xiaonian Li
- Industrial Catalysis Institute, ZJUT, Hangzhou 310014, China
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Bhalla N, Taneja S, Thakur P, Sharma PK, Mariotti D, Maddi C, Ivanova O, Petrov D, Sukhachev A, Edelman IS, Thakur A. Doping Independent Work Function and Stable Band Gap of Spinel Ferrites with Tunable Plasmonic and Magnetic Properties. NANO LETTERS 2021; 21:9780-9788. [PMID: 34735771 DOI: 10.1021/acs.nanolett.1c03767] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Tuning optical or magnetic properties of nanoparticles, by addition of impurities, for specific applications is usually achieved at the cost of band gap and work function reduction. Additionally, conventional strategies to develop nanoparticles with a large band gap also encounter problems of phase separation and poor crystallinity at high alloying degree. Addressing the aforementioned trade-offs, here we report Ni-Zn nanoferrites with energy band gap (Eg) of ≈3.20 eV and a work function of ≈5.88 eV. While changes in the magnetoplasmonic properties of the Ni-Zn ferrite were successfully achieved with the incorporation of bismuth ions at different concentrations, there was no alteration of the band gap and work function in the developed Ni-Zn ferrite. This suggests that with the addition of minute impurities to ferrites, independent of their changes in the band gap and work function, one can tune their magnetic and optical properties, which is desired in a wide range of applications such as nanobiosensing, nanoparticle based catalysis, and renewable energy generation using nanotechnology.
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Affiliation(s)
- Nikhil Bhalla
- Nanotechnology and Integrated Bioengineering Centre (NIBEC), School of Engineering, Ulster University, Shore Road, Jordanstown, BT37 0QB, Northern Ireland, United Kingdom
- Healthcare Technology Hub, Ulster University, Shore Road, Jordanstown, BT37 0QB, Northern Ireland, United Kingdom
| | - Shilpa Taneja
- Department of Physics, Amity University Haryana, Gurugram, Haryana 122413, India
| | - Preeti Thakur
- Department of Physics, Amity University Haryana, Gurugram, Haryana 122413, India
| | - Preetam Kumar Sharma
- Nanotechnology and Integrated Bioengineering Centre (NIBEC), School of Engineering, Ulster University, Shore Road, Jordanstown, BT37 0QB, Northern Ireland, United Kingdom
- Healthcare Technology Hub, Ulster University, Shore Road, Jordanstown, BT37 0QB, Northern Ireland, United Kingdom
- Department of Chemical Engineering, Loughborough University, Loughborough LE11 3TU, United Kingdom
| | - Davide Mariotti
- Nanotechnology and Integrated Bioengineering Centre (NIBEC), School of Engineering, Ulster University, Shore Road, Jordanstown, BT37 0QB, Northern Ireland, United Kingdom
| | - Chiranjeevi Maddi
- Nanotechnology and Integrated Bioengineering Centre (NIBEC), School of Engineering, Ulster University, Shore Road, Jordanstown, BT37 0QB, Northern Ireland, United Kingdom
| | - Oxana Ivanova
- L.V. Kirensky Institute of Physics, Siberian Branch of RAS, 660036 Krasnoyarsk, Russia
| | - Dmitry Petrov
- L.V. Kirensky Institute of Physics, Siberian Branch of RAS, 660036 Krasnoyarsk, Russia
| | - Alexander Sukhachev
- L.V. Kirensky Institute of Physics, Siberian Branch of RAS, 660036 Krasnoyarsk, Russia
| | - Irina S Edelman
- L.V. Kirensky Institute of Physics, Siberian Branch of RAS, 660036 Krasnoyarsk, Russia
| | - Atul Thakur
- Amity Institute of Nanotechnology, Amity University Haryana, Gurugram, Haryana 122413, India
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17
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Dinkar DK, Das B, Gopalan R, Dehiya BS. Magnetic and optical properties of green synthesized nickel ferrite nanoparticles and its application into photocatalysis. NANOTECHNOLOGY 2021; 32:505725. [PMID: 34496356 DOI: 10.1088/1361-6528/ac24c2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 09/07/2021] [Indexed: 06/13/2023]
Abstract
Spinel NiFe2O4nanoparticles have been synthesized via hydrothermal route usingMangifera indicaflower extract (MIFE) as a green surfactant and reducing agent. X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, and transmission electron microscopy techniques have been used to determine the structure and morphology. The formation of single-phase, monodispersed NiFe2O4with mixed morphology, the predominant shape being of equi-axed nanoparticles having an average particle size ≲45 nm, is observed. The thermal magnetization of as-synthesized NiFe2O4nanoparticles shows ferromagnetic to paramagnetic phase transition atTc ∼ 825 K. These nanoparticles show a very high saturation magnetization (Ms) value of 55 emu g-1close to the bulk material and amongst the highest reported values for green synthesized NiFe2O4 nanoparticles. This material has a coercivity (Hc) of 0.15 kOe and remanent magnetization (Mr) of 8.5 emu g-1. The as-synthesized NiFe2O4nanoparticles show bandgap energy of 2.02 eV, derived from UV-vis absorption measurement, which is suitable for effective solar photocatalytic reactions. When exposed to sunlight in the presence of as-synthesized NiFe2O4nanoparticles, 93% of MB-dye degradation is measured in 80 min, indicating excellent photocatalytic properties. Based on the as-synthesized NiFe2O4nanoparticles' observed properties, the effectiveness of MIFE as an environmentally friendly surfactant, and the low-cost dye-degradation prospects of green synthesized NiFe2O4nanoparticles are affirmed.
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Affiliation(s)
- Deepak Kumar Dinkar
- Centre for Automotive Energy Materials, International Advanced Research Centre for Powder Metallurgy and New Materials, IIT Madras Research Park, Chennai, 600113, India
- Nanostructured Materials Laboratory, Department of Materials Science and Nanotechnology, Deenbandhu Chhotu Ram University of Science and Technology, Sonepat, 131039, India
| | - Bijoy Das
- Centre for Automotive Energy Materials, International Advanced Research Centre for Powder Metallurgy and New Materials, IIT Madras Research Park, Chennai, 600113, India
| | - Raghavan Gopalan
- Centre for Automotive Energy Materials, International Advanced Research Centre for Powder Metallurgy and New Materials, IIT Madras Research Park, Chennai, 600113, India
| | - Brijnandan S Dehiya
- Nanostructured Materials Laboratory, Department of Materials Science and Nanotechnology, Deenbandhu Chhotu Ram University of Science and Technology, Sonepat, 131039, India
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18
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Palanisamy G, Al-Shaalan NH, Bhuvaneswari K, Bharathi G, Bharath G, Pazhanivel T, V E S, Arumugam MK, Pasha SKK, Habila MA, El-Marghany A. An efficient and magnetically recoverable g-C 3N 4/ZnS/CoFe 2O 4 nanocomposite for sustainable photodegradation of organic dye under UV-visible light illumination. ENVIRONMENTAL RESEARCH 2021; 201:111429. [PMID: 34146527 DOI: 10.1016/j.envres.2021.111429] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/21/2021] [Accepted: 05/22/2021] [Indexed: 06/12/2023]
Abstract
Effective improvement of an easily recoverable photocatalyst is equally vital to its photocatalytic performance from a practical application view. The magnetically recoverable process is one of the easiest ways, provided the photocatalyst is magnetically strong enough to respond to an external magnetic field. Herein, we prepared graphitic carbon nitride nanosheet (g-C3N4), and ZnS quantum dots (QDs) supported ferromagnetic CoFe2O4 nanoparticles (NPs) as the gC3N4/ZnS/CoFe2O4 nanohybrid photocatalyst by a wet-impregnation method. The loading of CoFe2O4 NPs in the g-C3N4/ZnS nanohybrid resulted in extended visible light absorption. The ferromagnetic g-C3N4/ZnS/CoFe2O4 nanohybrid exhibited better visible-light-active photocatalytic performance (97.11%) against methylene blue (MB) dye, and it was easily separable from the aqueous solution by an external bar magnet. The g-C3N4/ZnS/CoFe2O4 nanohybrid displayed excellent photostability and reusability after five consecutive cycles. The favourable band alignment and availability of a large number of active sites affected the better charge separation and enhanced photocatalytic response. The role of active species involved in the degradation of MB dye during photocatalyst by g-C3N4/ZnS/CoFe2O4 nanohybrid was also investigated. Overall, this study provides a facile method for design eco-friendly and promising g-C3N4/ZnS/CoFe2O4 nanohybrid photocatalyst as applicable in the eco-friendly dye degradation process.
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Affiliation(s)
- G Palanisamy
- Department of Physics, Periyar University, Salem, 636 011, Tamil Nadu, India
| | - Nora Hamad Al-Shaalan
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, 11671, Saudi Arabia
| | - K Bhuvaneswari
- Department of Physics, Periyar University, Salem, 636 011, Tamil Nadu, India
| | - G Bharathi
- Key Laboratory of Optoelectronic Devices and Systems of Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, Guangdong Province, 518060, PR China
| | - G Bharath
- Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates
| | - T Pazhanivel
- Department of Physics, Periyar University, Salem, 636 011, Tamil Nadu, India.
| | - Sathishkumar V E
- Department of Computer Science and Engineering, Kongu Engineering College, Perundurai, Erode, 638101, Tamil Nadu, India
| | - Madan Kumar Arumugam
- Cancer Biology Lab, Centre for Molecular and Nanomedical Sciences, Sathyabama Institute of Science and Technology, Chennai, 600119, India
| | - S K Khadeer Pasha
- Department of Physics, VIT-AP University, Amaravati, Guntur, 522501, Andhra Pradesh, India
| | - Mohamed A Habila
- Advanced Materials Research Chair, Chemistry Department, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Adel El-Marghany
- Advanced Materials Research Chair, Chemistry Department, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
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Kahmei RDR, Seal P, Borah JP. Tunable heat generation in nickel-substituted zinc ferrite nanoparticles for magnetic hyperthermia. NANOSCALE ADVANCES 2021; 3:5339-5347. [PMID: 36132638 PMCID: PMC9417590 DOI: 10.1039/d1na00153a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Accepted: 08/07/2021] [Indexed: 05/27/2023]
Abstract
We report a high-performance magnetic nanoparticle as a hyperthermic agent under low applied field and frequency. CTAB (cetyltrimethylammonium bromide)-coated Ni x Zn1-x Fe2O4 nanoparticles of average particle size < 25 nm with various stoichiometric ratios were successfully synthesized using a co-precipitation technique. Characterization results indicate a close interaction of CTAB ions with the surface metal ions resulting in a cation distribution deviating from their equilibrium positions. Magnetic measurements were done at 300 K and 5 K using a superconducting quantum interference device. Saturation magnetization gradually increases with increasing substitution of Ni2+ ions with Zn2+ ions, attributed to the cation distribution and high super-exchange interaction between the A- and B-sites. The average size of the nanoparticles is estimated to be <10 nm with a magnetically dead layer (>1 nm @ 300 K), reflecting the effect of CTAB coating on the surface of the nanoparticles. The magnetocrystalline anisotropy (K eff), obtained from the law of approach to saturation, is inversely proportional to the M s value. The increasing incorporation of Ni2+ ions in the lattice system is found to influence various structural parameters, which is reflected in the magnetic performance of the nanoparticles. A specific absorption rate of 347 W g-1 and intrinsic loss power of 4.6 nH m2 kg-1 was attained with a minimal concentration of 2 mg ml-1 in a very short time period of 1.5 min in Ni0.75Zn0.25Fe2O4 nanoparticles.
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Affiliation(s)
| | - Papori Seal
- National Institute of Technology Nagaland India 797103
| | - J P Borah
- National Institute of Technology Nagaland India 797103
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20
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Fernández-Álvarez F, García-García G, Arias JL. A Tri-Stimuli Responsive (Maghemite/PLGA)/Chitosan Nanostructure with Promising Applications in Lung Cancer. Pharmaceutics 2021; 13:pharmaceutics13081232. [PMID: 34452193 PMCID: PMC8401782 DOI: 10.3390/pharmaceutics13081232] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 07/30/2021] [Accepted: 08/06/2021] [Indexed: 12/13/2022] Open
Abstract
A (core/shell)/shell nanostructure (production performance ≈ 50%, mean diameter ≈ 330 nm) was built using maghemite, PLGA, and chitosan. An extensive characterization proved the complete inclusion of the maghemite nuclei into the PLGA matrix (by nanoprecipitation solvent evaporation) and the disposition of the chitosan shell onto the nanocomposite (by coacervation). Short-term stability and the adequate magnetism of the nanocomposites were demonstrated by size and electrokinetic determinations, and by defining the first magnetization curve and the responsiveness of the colloid to a permanent magnet, respectively. Safety of the nanoparticles was postulated when considering the results from blood compatibility studies, and toxicity assays against human colonic CCD-18 fibroblasts and colon carcinoma T-84 cells. Cisplatin incorporation to the PLGA matrix generated appropriate loading values (≈15%), and a dual pH- and heat (hyperthermia)-responsive drug release behaviour (≈4.7-fold faster release at pH 5.0 and 45 °C compared to pH 7.4 and 37 °C). The half maximal inhibitory concentration of the cisplatin-loaded nanoparticles against human lung adenocarcinoma A-549 cells was ≈1.6-fold less than that of the free chemotherapeutic. Such a biocompatible and tri-stimuli responsive (maghemite/PLGA)/chitosan nanostructure may found a promising use for the effective treatment of lung cancer.
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Affiliation(s)
- Fátima Fernández-Álvarez
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Granada, 18071 Granada, Spain;
| | - Gracia García-García
- Faculty of Experimental Sciences, Universidad Francisco de Vitoria, 28223 Madrid, Spain;
| | - José L. Arias
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Granada, 18071 Granada, Spain;
- Institute of Biopathology and Regenerative Medicine (IBIMER), Center of Biomedical Research (CIBM), University of Granada, 18071 Granada, Spain
- Biosanitary Research Institute of Granada (ibs.GRANADA), Andalusian Health Service (SAS), University of Granada, 18071 Granada, Spain
- Correspondence: ; Tel.: +34-958-24-39-00
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21
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Palanisamy G, Bhuvaneswari K, Bharathi G, Pazhanivel T, Grace AN, Pasha SKK. Construction of magnetically recoverable ZnS-WO 3-CoFe 2O 4 nanohybrid enriched photocatalyst for the degradation of MB dye under visible light irradiation. CHEMOSPHERE 2021; 273:129687. [PMID: 33497986 DOI: 10.1016/j.chemosphere.2021.129687] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 01/11/2021] [Accepted: 01/15/2021] [Indexed: 06/12/2023]
Abstract
Easily recyclable photocatalysts have received considerable attention for their practical application, in order to address the wastewater treatments. Here, we report efficient and magnetically recyclable ZnS-WO3-CoFe2O4 nanohybrid prepared through wet impregnation method. The photophysical and optical properties of as-prepared photocatalysts was investigated by different spectroscopic techniques. The photocatalytic activity of as synthesized samples were assessed by the photodegradation of methylene blue (MB) dye under visible light irradiation. Amongst, ZnS-WO3-CoFe2O4 nanohybrid exhibit higher photodegradation activity than the other bare and hybrid samples. The enhanced light absorption and lower emission intensity provide the improved photocatalytic activity of ZnS-WO3-CoFe2O4 nanohybrid. The ZnS-WO3-CoFe2O4 nanohybrid exhibit excellent photostability after four consecutive cycles. The ferromagnetic behavior of the hybrid sample using easily recover from the dye solution using an external bar magnet.
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Affiliation(s)
- G Palanisamy
- Smart Materials Interface Laboratory, Department of Physics, Periyar University, Salem, 636 011, Tamilnadu, India
| | - K Bhuvaneswari
- Smart Materials Interface Laboratory, Department of Physics, Periyar University, Salem, 636 011, Tamilnadu, India
| | - G Bharathi
- Key Laboratory of Optoelectronic Devices and Systems of Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, Guangdong Province, 518060, PR China
| | - T Pazhanivel
- Smart Materials Interface Laboratory, Department of Physics, Periyar University, Salem, 636 011, Tamilnadu, India.
| | - Andrews Nirmala Grace
- Centre for Nanotechnology Research, Vellore Institute of Technology, Vellore, 632 014, Tamil Nadu, India
| | - S K Khadheer Pasha
- Department of Physics, Vellore Institute of Technology (Amaravati Campus), Amaravati, 522501, Guntur, Andhra Pradesh, India
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Sharma Y, Mazza AR, Musico BL, Skoropata E, Nepal R, Jin R, Ievlev AV, Collins L, Gai Z, Chen A, Brahlek M, Keppens V, Ward TZ. Magnetic Texture in Insulating Single Crystal High Entropy Oxide Spinel Films. ACS APPLIED MATERIALS & INTERFACES 2021; 13:17971-17977. [PMID: 33822581 DOI: 10.1021/acsami.1c01344] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Magnetic insulators are important materials for a range of next-generation memory and spintronic applications. Structural constraints in this class of devices generally require a clean heterointerface that allows effective magnetic coupling between the insulating layer and the conducting layer. However, there are relatively few examples of magnetic insulators that can be synthesized with surface qualities that would allow these smooth interfaces and precisely tuned interfacial magnetic exchange coupling, which might be applicable at room temperature. In this work, we demonstrate an example of how the configurational complexity in the magnetic insulator layer can be used to realize these properties. The entropy-assisted synthesis is used to create single-crystal (Mg0.2Ni0.2Fe0.2Co0.2Cu0.2)Fe2O4 films on substrates spanning a range of strain states. These films show smooth surfaces, high resistivity, and strong magnetic responses at room temperature. Local and global magnetic measurements further demonstrate how strain can be used to manipulate the magnetic texture and anisotropy. These findings provide insight into how precise magnetic responses can be designed using compositionally complex materials that may find application in next-generation magnetic devices.
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Affiliation(s)
- Yogesh Sharma
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
- Center for Integrated Nanotechnologies (CINT), Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Alessandro R Mazza
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Brianna L Musico
- Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Elizabeth Skoropata
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Roshan Nepal
- Department of Physics & Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - Rongying Jin
- Department of Physics & Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - Anton V Ievlev
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Liam Collins
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Zheng Gai
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Aiping Chen
- Center for Integrated Nanotechnologies (CINT), Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Matthew Brahlek
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Veerle Keppens
- Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Thomas Z Ward
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
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Abd El-Hafiz DR, Sakr AAE, Ebiad MA. Methane Bi-reforming for direct ethanol production over smart Cu/Mn- ferrite catalysts. RENEWABLE ENERGY 2021; 167:236-247. [DOI: 10.1016/j.renene.2020.11.078] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Lak A, Disch S, Bender P. Embracing Defects and Disorder in Magnetic Nanoparticles. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:2002682. [PMID: 33854879 PMCID: PMC8025001 DOI: 10.1002/advs.202002682] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 10/30/2020] [Indexed: 05/22/2023]
Abstract
Iron oxide nanoparticles have tremendous scientific and technological potential in a broad range of technologies, from energy applications to biomedicine. To improve their performance, single-crystalline and defect-free nanoparticles have thus far been aspired. However, in several recent studies, defect-rich nanoparticles outperform their defect-free counterparts in magnetic hyperthermia and magnetic particle imaging (MPI). Here, an overview on the state-of-the-art of design and characterization of defects and resulting spin disorder in magnetic nanoparticles is presented with a focus on iron oxide nanoparticles. The beneficial impact of defects and disorder on intracellular magnetic hyperthermia performance of magnetic nanoparticles for drug delivery and cancer therapy is emphasized. Defect-engineering in iron oxide nanoparticles emerges to become an alternative approach to tailor their magnetic properties for biomedicine, as it is already common practice in established systems such as semiconductors and emerging fields including perovskite solar cells. Finally, perspectives and thoughts are given on how to deliberately induce defects in iron oxide nanoparticles and their potential implications for magnetic tracers to monitor cell therapy and immunotherapy by MPI.
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Affiliation(s)
- Aidin Lak
- Department of Physics and Center for NanoScienceLMU MunichAmalienstr. 54Munich80799Germany
| | - Sabrina Disch
- Department für ChemieUniversität zu KölnGreinstraße 4‐6Köln50939Germany
| | - Philipp Bender
- Department of Physics and Materials ScienceUniversity of Luxembourg162A avenue de la FaÏencerieLuxembourgL‐1511Grand Duchy of Luxembourg
- Present address:
Heinz Maier‐Leibnitz Zentrum (MLZ)Technische Universität MünchenD‐85748GarchingGermany
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Sanchez-Lievanos KR, Stair JL, Knowles KE. Cation Distribution in Spinel Ferrite Nanocrystals: Characterization, Impact on their Physical Properties, and Opportunities for Synthetic Control. Inorg Chem 2021; 60:4291-4305. [PMID: 33734686 DOI: 10.1021/acs.inorgchem.1c00040] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Metal oxide materials that adopt the spinel crystal structure, such as metal ferrites (MFe2O4), present tetrahedral (A) and octahedral [B] sublattice sites surrounded by oxygen anions that provide a relatively weak crystal-field splitting. The formula of a metal ferrite material is most precisely described as (M1-xFex)[MxFe2-x]O4, where the parentheses and square brackets denote the tetrahedral and octahedral sites, respectively, and x is the inversion parameter quantifying the distribution of M2+ and Fe3+ cations among these sites. The electronic, magnetic, and optical properties of spinel ferrites all depend on the magnitude of x, which, in turn, depends on the relative sizes of the cations, their charge, and the relative crystal-field stabilization afforded by tetrahedral or octahedral coordination. Compared to bulk spinel ferrites, the large surface-area-to-volume ratio of spinel ferrite nanocrystals provides additional structural degrees of freedom that enable access to a broader range of x values. Achieving synthetic control over the degree of inversion in addition to the size and shape is critical to tuning the properties of spinel ferrite nanocrystals. In this Forum Article, we review physical inorganic methods used to quantify x in spinel ferrite nanocrystals, describe how the electronic, magnetic, and optical properties of these nanocrystals depend on x, and discuss emerging strategies for achieving synthetic control over this parameter.
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Affiliation(s)
| | - James L Stair
- Department of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | - Kathryn E Knowles
- Department of Chemistry, University of Rochester, Rochester, New York 14627, United States
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Novel Structures and Applications of Graphene-Based Semiconductor Photocatalysts: Faceted Particles, Photonic Crystals, Antimicrobial and Magnetic Properties. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11051982] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Graphene, graphene oxide, reduced graphene oxide and their composites with various compounds/materials have high potential for substantial impact as cheap photocatalysts, which is essential to meet the demands of global activity, offering the advantage of utilizing “green” solar energy. Accordingly, graphene-based materials might help to reduce reliance on fossil fuel supplies and facile remediation routes to achieve clean environment and pure water. This review presents recent developments of graphene-based semiconductor photocatalysts, including novel composites with faceted particles, photonic crystals, and nanotubes/nanowires, where the enhancement of activity mechanism is associated with a synergistic effect resulting from the presence of graphene structure. Moreover, antimicrobial potential (highly needed these days), and facile recovery/reuse of photocatalysts by magnetic field have been addresses as very important issue for future commercialization. It is believed that graphene materials should be available soon in the market, especially because of constantly decreasing prices of graphene, vis response, excellent charge transfer ability, and thus high and broad photocatalytic activity against both organic pollutants and microorganisms.
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Cristina de Oliveira R, Pontes Ribeiro RA, Cruvinel GH, Ciola Amoresi RA, Carvalho MH, Aparecido de Oliveira AJ, Carvalho de Oliveira M, Ricardo de Lazaro S, Fernando da Silva L, Catto AC, Simões AZ, Sambrano JR, Longo E. Role of Surfaces in the Magnetic and Ozone Gas-Sensing Properties of ZnFe 2O 4 Nanoparticles: Theoretical and Experimental Insights. ACS APPLIED MATERIALS & INTERFACES 2021; 13:4605-4617. [PMID: 33443996 DOI: 10.1021/acsami.0c15681] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The magnetic properties and ozone (O3) gas-sensing activity of zinc ferrite (ZnFe2O4) nanoparticles (NPs) were discussed by the combination of the results acquired by experimental procedures and density functional theory simulations. The ZnFe2O4 NPs were synthesized via the microwave-assisted hydrothermal method by varying the reaction time in order to obtain ZnFe2O4 NPs with different exposed surfaces and evaluate the influence on its properties. Regardless of the reaction time employed in the synthesis, the zero-field-cooled and field-cooled magnetization measurements showed superparamagnetic ZnFe2O4 NPs with an average blocking temperature of 12 K. The (100), (110), (111), and (311) surfaces were computationally modeled, displaying the different undercoordinated surfaces. The good sensing activity of ZnFe2O4 NPs was discussed in relation to the presence of the (110) surface, which exhibited low (-0.69 eV) adsorption enthalpy, promoting reversibility and preventing the saturation of the sensor surface. Finally, the O3 gas-sensing mechanism could be explained based on the conduction changes of the ZnFe2O4 surface and the increase in the height of the electron-depletion layer upon exposure toward the target gas. The results obtained allowed us to propose a mechanism for understanding the relationship between the morphological changes and the magnetic and O3 gas-sensing properties of ZnFe2O4 NPs.
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Affiliation(s)
- Regiane Cristina de Oliveira
- Modeling and Molecular Simulations Group, São Paulo State University, UNESP, Bauru, São Paulo 17033-306, Brazil
- Faculty of Engineering of Guaratinguetá, São Paulo State University, UNESP, Guaratinguetá, São Paulo 12516-410, Brazil
| | - Renan Augusto Pontes Ribeiro
- Department of Chemistry, State University of Minas Gerais, Av. Paraná, 3001, 35501-170 Divinópolis, Minas Gerais, Brazil
- Functional Materials Development Center, Federal University of São Carlos, UFSCar, São Carlos, São Paulo 13565-905, Brazil
| | - Guilherme Henrique Cruvinel
- Functional Materials Development Center, Federal University of São Carlos, UFSCar, São Carlos, São Paulo 13565-905, Brazil
| | | | - Maria Helena Carvalho
- Physics Department, Federal University of São Carlos, (UFSCar), P.O. Box 676, 13565-905 São Carlos, São Paulo, Brazil
| | | | - Marisa Carvalho de Oliveira
- LSQM-Laboratory of Chemical Synthesis of Materials, Department of Materials Engineering, Federal University of Rio Grande do Norte, P.O. Box 1524, 59078-900 Natal, Rio Grande do Norte, Brazil
| | - Sergio Ricardo de Lazaro
- Department of Chemistry, State University of Ponta Grossa, 4748 General Carlos Cavalcanti Avenue, 84030-900 Ponta Grossa, Paraná, Brazil
| | - Luís Fernando da Silva
- Laboratory of Nanostructured Multifunctional Materials, Federal University of São Carlos, Washington Luiz Road, km 235, 13565-090 São Carlos, São Paulo, Brazil
| | - Ariadne Cristina Catto
- Functional Materials Development Center, Federal University of São Carlos, UFSCar, São Carlos, São Paulo 13565-905, Brazil
| | - Alexandre Zirpoli Simões
- Faculty of Engineering of Guaratinguetá, São Paulo State University, UNESP, Guaratinguetá, São Paulo 12516-410, Brazil
| | - Julio Ricardo Sambrano
- Modeling and Molecular Simulations Group, São Paulo State University, UNESP, Bauru, São Paulo 17033-306, Brazil
| | - Elson Longo
- Functional Materials Development Center, Federal University of São Carlos, UFSCar, São Carlos, São Paulo 13565-905, Brazil
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El-Hafiz DRA, Ebiad MA, Sakr AAE. Ultrasonic-Assisted Nano-Nickel Ferrite Spinel Synthesis for Natural Gas Reforming. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-020-01718-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Andersen HL, Frandsen BA, Gunnlaugsson HP, Jørgensen MRV, Billinge SJL, Jensen KMØ, Christensen M. Local and long-range atomic/magnetic structure of non-stoichiometric spinel iron oxide nanocrystallites. IUCRJ 2021; 8:33-45. [PMID: 33520241 PMCID: PMC7792993 DOI: 10.1107/s2052252520013585] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 10/11/2020] [Indexed: 06/08/2023]
Abstract
Spinel iron oxide nanoparticles of different mean sizes in the range 10-25 nm have been prepared by surfactant-free up-scalable near- and super-critical hydro-thermal synthesis pathways and characterized using a wide range of advanced structural characterization methods to provide a highly detailed structural description. The atomic structure is examined by combined Rietveld analysis of synchrotron powder X-ray diffraction (PXRD) data and time-of-flight neutron powder-diffraction (NPD) data. The local atomic ordering is further analysed by pair distribution function (PDF) analysis of both X-ray and neutron total-scattering data. It is observed that a non-stoichiometric structural model based on a tetragonal γ-Fe2O3 phase with vacancy ordering in the structure (space group P43212) yields the best fit to the PXRD and total-scattering data. Detailed peak-profile analysis reveals a shorter coherence length for the superstructure, which may be attributed to the vacancy-ordered domains being smaller than the size of the crystallites and/or the presence of anti-phase boundaries, faulting or other disorder effects. The intermediate stoichiometry between that of γ-Fe2O3 and Fe3O4 is confirmed by refinement of the Fe/O stoichiometry in the scattering data and quantitative analysis of Mössbauer spectra. The structural characterization is complemented by nano/micro-structural analysis using transmission electron microscopy (TEM), elemental mapping using scanning TEM, energy-dispersive X-ray spectroscopy and the measurement of macroscopic magnetic properties using vibrating sample magnetometry. Notably, no evidence is found of a Fe3O4/γ-Fe2O3 core-shell nanostructure being present, which had previously been suggested for non-stoichiometric spinel iron oxide nanoparticles. Finally, the study is concluded using the magnetic PDF (mPDF) method to model the neutron total-scattering data and determine the local magnetic ordering and magnetic domain sizes in the iron oxide nanoparticles. The mPDF data analysis reveals ferrimagnetic collinear ordering of the spins in the structure and the magnetic domain sizes to be ∼60-70% of the total nanoparticle sizes. The present study is the first in which mPDF analysis has been applied to magnetic nanoparticles, establishing a successful precedent for future studies of magnetic nanoparticles using this technique.
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Affiliation(s)
- Henrik L. Andersen
- Department of Chemistry and Interdisciplinary Nanoscience Center, Aarhus University, Langelandsgade 140, Aarhus C, DK-8000, Denmark
| | - Benjamin A. Frandsen
- Department of Physics and Astronomy, Brigham Young University, N283 ESC, Provo, Utah 84602, USA
| | | | - Mads R. V. Jørgensen
- Department of Chemistry and Interdisciplinary Nanoscience Center, Aarhus University, Langelandsgade 140, Aarhus C, DK-8000, Denmark
- MAX IV Laboratory, Lund University, PO Box 118, Lund, SE-221 00, Sweden
| | - Simon J. L. Billinge
- Department of Applied Physics and Applied Mathematics, Columbia University, 500 W. 120th Street, New York 10027, USA
- Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, PO Box 5000, Upton, New York 11973, USA
| | - Kirsten M. Ø. Jensen
- Department of Chemistry and Nanoscience Center, University of Copenhagen, Universitetsparken 5, København Ø, DK-2100, Denmark
| | - Mogens Christensen
- Department of Chemistry and Interdisciplinary Nanoscience Center, Aarhus University, Langelandsgade 140, Aarhus C, DK-8000, Denmark
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Fernández-Álvarez F, Caro C, García-García G, García-Martín ML, Arias JL. Engineering of stealth (maghemite/PLGA)/chitosan (core/shell)/shell nanocomposites with potential applications for combined MRI and hyperthermia against cancer. J Mater Chem B 2021; 9:4963-4980. [PMID: 34114575 DOI: 10.1039/d1tb00354b] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
(Maghemite/poly(d,l-lactide-co-glycolide))/chitosan (core/shell)/shell nanoparticles have been prepared reproducibly by nanoprecipitation solvent evaporation plus coacervation (production performance ≈ 45%, average size ≈ 325 nm). Transmission electron microscopy, energy dispersive X-ray spectroscopy, electrophoretic determinations, and X-ray diffraction patterns demonstrated the satisfactory embedment of iron oxide nanocores within the solid polymer matrix and the formation of an external shell of chitosan in the nanostructure. The adequate magnetic responsiveness of the nanocomposites was characterized in vitro by hysteresis cycle determinations and by visualization of the nanosystem under the influence of a 0.4 T permanent magnet. Safety and biocompatibility of the (core/shell)/shell particles were based on in vitro haemocompatibility studies and cytotoxicity tests against HFF-1 human foreskin fibroblasts and on ex vivo toxicity assessments on tissue samples from Balb/c mice. Transversal relaxivities, determined in vitro at a low magnetic field of 1.44 T, demonstrated their capability as T2 contrast agents for magnetic resonance imaging, being comparable to that of some iron oxide-based contrast agents. Heating properties were evaluated in a high frequency alternating electromagnetic gradient: a constant maximum temperature of ≈46 °C was generated within ≈50 min, while antitumour hyperthermia tests on T-84 colonic adenocarcinoma cells proved the relevant decrease in cell viability (to ≈ 39%) when treated with the nanosystem under the influence of that electromagnetic field. Finally, in vivo magnetic resonance imaging studies and ex vivo histology determinations of iron deposits postulated the efficacy of chitosan to provide long-circulating capabilities to the nanocomposites, retarding nanoparticle recognition by the mononuclear phagocyte system. To our knowledge, this is the first study describing such a type of biocompatible and long-circulating nanoplatform with promising theranostic applications (biomedical imaging and hyperthermia) against cancer.
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Affiliation(s)
- Fátima Fernández-Álvarez
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Granada, Granada, Spain.
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Tian L, Zhang Y, Wang L, Geng Q, Liu D, Duan L, Wang Y, Cui J. Ratiometric Dual Signal-Enhancing-Based Electrochemical Biosensor for Ultrasensitive Kanamycin Detection. ACS APPLIED MATERIALS & INTERFACES 2020; 12:52713-52720. [PMID: 33170623 DOI: 10.1021/acsami.0c15898] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Based on the signal amplification elements of planar VS2/AuNPs nanocomposites and CoFe2O4 nanozyme, we herein developed an electrochemical biosensor for sensitive kanamycin (Kana) quantification. A ratiometric sensing platform was presented by incorporating VS2/AuNPs nanocomposites as a support material with excellent conductivity and high specific surface area, as well as hairpin DNA (hDNA) with complementary hybridization of biotinylated Kana-aptamer. In addition, streptavidin-functionalized CoFe2O4 nanozyme with superior peroxidase-like catalytic activity were immobilized onto the aptasensor, hence the peroxidase-like catalytic reaction could yield amplified electrochemical signals. With the presence of Kana, the aptamer-biorecognition resulted in a quantitative decrease of nanozyme accumulation and an increase of methylene blue response. Under optimal conditions, the electrochemical signal ratio of the aptasensor revealed a linear relation along with the logarithmic concentration of Kana from 1 pM to 1 μM, with the limit of detection reaching to 0.5 pM. Moreover, this aptasensor exhibited excellent precision, as well as high repeatability, hence possessing potentials in real samples and for diverse targets detection by easy replacement of the matched aptamer.
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Affiliation(s)
- Liang Tian
- School of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei 050018, P. R. China
| | - Yi Zhang
- School of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei 050018, P. R. China
| | - Liubo Wang
- School of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei 050018, P. R. China
| | - Qingjun Geng
- School of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei 050018, P. R. China
| | - Daxi Liu
- School of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei 050018, P. R. China
| | - Lili Duan
- School of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei 050018, P. R. China
| | - Yihong Wang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, P. R. China
| | - Jiansheng Cui
- School of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei 050018, P. R. China
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Hölscher J, Petrecca M, Albino M, Garbus PG, Saura-Múzquiz M, Sangregorio C, Christensen M. Magnetic Property Enhancement of Spinel Mn–Zn Ferrite through Atomic Structure Control. Inorg Chem 2020; 59:11184-11192. [DOI: 10.1021/acs.inorgchem.0c01809] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jennifer Hölscher
- Center for Materials Crystallography, Department of Chemistry and Interdisciplinary Nanoscience Centre (iNANO), Aarhus University, Langelandsgade 140, DK-8000 Aarhus C, Denmark
| | - Michele Petrecca
- ICCOM-CNR, via Madonna del Piano 10, 50019 Sesto Fiorentino, Italy
- Department of Chemistry “Ugo Schiff”, INSTM, via della Lastruccia 3-13, 50019 Sesto Fiorentino, Italy
| | - Martin Albino
- Department of Chemistry “Ugo Schiff”, INSTM, via della Lastruccia 3-13, 50019 Sesto Fiorentino, Italy
| | - Pelle Gorm Garbus
- Center for Materials Crystallography, Department of Chemistry and Interdisciplinary Nanoscience Centre (iNANO), Aarhus University, Langelandsgade 140, DK-8000 Aarhus C, Denmark
| | - Matilde Saura-Múzquiz
- Center for Materials Crystallography, Department of Chemistry and Interdisciplinary Nanoscience Centre (iNANO), Aarhus University, Langelandsgade 140, DK-8000 Aarhus C, Denmark
- School of Chemistry, The University of Sydney, F11, Sydney, NSW 2006, Australia
| | - Claudio Sangregorio
- ICCOM-CNR, via Madonna del Piano 10, 50019 Sesto Fiorentino, Italy
- Department of Chemistry “Ugo Schiff”, INSTM, via della Lastruccia 3-13, 50019 Sesto Fiorentino, Italy
| | - Mogens Christensen
- Center for Materials Crystallography, Department of Chemistry and Interdisciplinary Nanoscience Centre (iNANO), Aarhus University, Langelandsgade 140, DK-8000 Aarhus C, Denmark
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Saturation of Specific Absorption Rate for Soft and Hard Spinel Ferrite Nanoparticles Synthesized by Polyol Process. MAGNETOCHEMISTRY 2020. [DOI: 10.3390/magnetochemistry6020023] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Spinel ferrite nanoparticles represent a class of magnetic nanoparticles (MNPs) with enormous potential in magnetic hyperthermia. In this study, we investigated the magnetic and heating properties of spinel soft NiFe2O4, MnFe2O4, and hard CoFe2O4 MNPs of comparable sizes (12–14 nm) synthesized by the polyol method. Similar to the hard ferrite, which predominantly is ferromagnetic at room temperature, the soft ferrite MNPs display a non-negligible coercivity (9–11 kA/m) arising from the strong interparticle interactions. The heating capabilities of ferrite MNPs were evaluated in aqueous media at concentrations between 4 and 1 mg/mL under alternating magnetic fields (AMF) amplitude from 5 to 65 kA/m at a constant frequency of 355 kHz. The hyperthermia data revealed that the SAR values deviate from the quadratic dependence on the AMF amplitude in all three cases in disagreement with the Linear Response Theory. Instead, the SAR values display a sigmoidal dependence on the AMF amplitude, with a maximum heating performance measured for the cobalt ferrites (1780 W/gFe+Co), followed by the manganese ferrites (835 W/gFe+Mn), while the nickel ferrites (540 W/gFe+Ni) present the lowest values of SAR. The heating performances of the ferrites are in agreement with their values of coercivity and saturation magnetization.
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Alahmari F, Rehman S, Almessiere M, Khan FA, Slimani Y, Baykal A. Synthesis of Ni 0.5Co 0.5-xCd xFe 1.78Nd 0.02O 4 (x ≤ 0.25) nanofibers by using electrospinning technique induce anti-cancer and anti-bacterial activities. J Biomol Struct Dyn 2020; 39:3186-3193. [PMID: 32340569 DOI: 10.1080/07391102.2020.1761880] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Here we report the electrospinning synthesis of Cd-substituted Ni-Co ferrite Ni0.5Co0.5-xCdxFe1.78Nd0.02O4 (x ≤ 0.25) nanofiber (NFs) with a very low concentration of Nd as a dopant. The structure and surface morphology of the Ni0.5Co0.5-xCdxFe1.78Nd0.02O4 (x ≤ 0.25) NFs were analyzed by X-ray powder pattern (XRD), transmission and scanning electron microscopes (TEM) along with Energy-dispersive X-ray (EDX). We have examined the biological applications of the Ni0.5Co0.5-xCdxFe1.78Nd0.02O4 (x ≤ 0.25) NFs on both cancerous cells and bacterial cells. We have found that Ni0.5Co0.5-xCdxFe1.78Nd0.02O4 (x ≤ 0.25) NFs produced inhibitory action on the human colorectal carcinoma cells (HEK-293) and also showed inhibitory action on the bacterial strains (S. aureus and E. coli) respectively. Finally, this is the first report on the synthesis of Cd- substituted Co-Ni ferrite nanofibers using electrospinning technique exhibiting anti-cancer and anti-bacterial activities.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- F Alahmari
- Department of Nanomedicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - S Rehman
- Department of Epidemic Disease Research, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - M Almessiere
- Department of Biophysics, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - F A Khan
- Department of Stem Cell Research, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Y Slimani
- Department of Biophysics, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - A Baykal
- Department of Nanomedicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
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Ahlburg JV, Granados-Miralles C, Gjørup FH, Andersen HL, Christensen M. Exploring the direct synthesis of exchange-spring nanocomposites by reduction of CoFe 2O 4 spinel nanoparticles using in situ neutron diffraction. NANOSCALE 2020; 12:9440-9451. [PMID: 32324188 DOI: 10.1039/d0nr00912a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In situ neutron powder diffraction (NPD) was employed for investigating gram-scale reduction of hard magnetic CoFe2O4 (spinel) nanoparticles into CoFe2O4/CoFe2 exchange-spring nanocomposites via H2 partial reduction. Time-resolved structural information was extracted from Rietveld refinements of the NPD data, revealing significant changes in the reduction kinetics based on the applied temperature and H2 available. The nanocomposite formation was found to take place via the following two-step reduction process: CoxFe3-xO4 → CoyFe1-yO → CozFe2-z. The refined lattice parameters and site occupation fractions indicate that the reduced phases, i.e. CoyFe1-yO and CozFe2-z, initially form as Co-rich compounds (i.e. y > 0.33 and z > 1), which gradually incorporate more Fe as the reduction proceeds. The reduction depletes the Co-content in the parent spinel, which may end up becoming magnetically soft Fe3O4 at high temperature (T = 542 °C), while at lower temperatures there may be a co-existence of Fe3O4 and γ-Fe2O3 or CoxFe3-xO4. The macroscopic magnetic properties of the products were measured by vibrating sample magnetometry (VSM) and revealed the hard and soft magnetic domains in the nanocomposites to be effectively exchange-coupled. An increase of approximately 70% in specific saturation magnetisation, remanence magnetisation, and coercivity compared to the parent CoFe2O4 material was achieved for the best sample.
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Affiliation(s)
- Jakob Voldum Ahlburg
- Center for Materials Crystallography, Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus, Denmark.
| | | | - Frederik Holm Gjørup
- Center for Materials Crystallography, Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus, Denmark.
| | - Henrik Lyder Andersen
- Center for Materials Crystallography, Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus, Denmark. and Current affiliation: School of Chemistry, UNSW Australia, Sydney, NSW 2052, Australia
| | - Mogens Christensen
- Center for Materials Crystallography, Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus, Denmark.
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Ghosh M, Jain K, Khan S, Das K, Ghorai TK. New Dual-Functional and Reusable Bimetallic Y 2ZnO 4 Nanocatalyst for Organic Transformation under Microwave/Green Conditions. ACS OMEGA 2020; 5:4973-4981. [PMID: 32201783 PMCID: PMC7081418 DOI: 10.1021/acsomega.9b03875] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 02/19/2020] [Indexed: 06/10/2023]
Abstract
A novel bimetallic and reusable Y2ZnO4 nanocatalyst was synthesized by a simple coprecipitation method. The prepared nanocatalyst exhibited dual catalytic activity and was characterized using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), energy-dispersive X-ray spectroscopy (EDX), and scanning electron microscopy (SEM). The average crystallite and grain sizes were found to be 17 ± 1 and 10 ± 2 nm, respectively. On the one hand, the catalytic activity of the nanocatalyst was studied for the Knoevenagel condensation reaction of aromatic aldehydes with active methylene compounds, such as ethyl cyanoacetate and malononitrile, under microwave irradiation and solvent-free conditions. On the other hand, the nanoparticles also showed faster photocatalytic activity against methyl orange (MO) compared to other dyes. The nanocatalyst was easily recoverable by a simple filtration method and was recycled without any significant loss of catalytic activity. The advantages of this nanocatalyst were a simple workup procedure, high reaction yields, solvent-free conditions, reusability, and a short reaction time under green reaction conditions.
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Affiliation(s)
- Mithun
Kumar Ghosh
- Nanomaterials
and Crystal Designing Laboratory, Department of Chemistry, Indira Gandhi National Tribal University, Amarkantak 484887, Madhya Pradesh, India
| | - Kavita Jain
- Advanced
Organic Synthesis Laboratory, Department of Chemistry, Dr. Harisingh Gour Vishwavidyalaya (Central University), Sagar 470003, Madhya Pradesh, India
| | - Siddique Khan
- Advanced
Organic Synthesis Laboratory, Department of Chemistry, Dr. Harisingh Gour Vishwavidyalaya (Central University), Sagar 470003, Madhya Pradesh, India
| | - Kalpataru Das
- Advanced
Organic Synthesis Laboratory, Department of Chemistry, Dr. Harisingh Gour Vishwavidyalaya (Central University), Sagar 470003, Madhya Pradesh, India
| | - Tanmay Kumar Ghorai
- Nanomaterials
and Crystal Designing Laboratory, Department of Chemistry, Indira Gandhi National Tribal University, Amarkantak 484887, Madhya Pradesh, India
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37
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Lak A, Kahmann T, Schaper SJ, Obel J, Ludwig F, Müller-Buschbaum P, Lipfert J. The Dissociation Rate of Acetylacetonate Ligands Governs the Size of Ferrimagnetic Zinc Ferrite Nanocubes. ACS APPLIED MATERIALS & INTERFACES 2020; 12:217-226. [PMID: 31804796 DOI: 10.1021/acsami.9b17714] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Magnetic nanoparticles are critical to a broad range of applications from medical diagnostics and therapeutics to biotechnological processes and single-molecule manipulation. To advance these applications, facile and robust routes to synthesize highly magnetic nanoparticles over a wide size range are needed. Here, we demonstrate that changing the degassing temperature of thermal decomposition of metal acetylacetonate precursors from 90 to 25 °C tunes the size of ferrimagnetic ZnxFe3-xO4 nanocubes from 25 to 100 nm, respectively. We show that degassing at 90 °C nearly entirely removes acetylacetone ligands from the reaction, which results in an early formation of monomers and a reaction-controlled growth following LaMer's model toward small nanocubes. In contrast, degassing at 25 °C only partially dissociates acetylacetone ligands from the metal center and triggers a delayed formation of monomers, which leads to intermediate assembled structures made of tiny irregular crystallites and an eventual formation of large nanocubes via a diffusion-controlled growth mechanism. Using complementary techniques, we determine the substitution fraction x of Zn2+ to be in the range of 0.35-0.37. Our method reduces the complexity of the thermal decomposition method by narrowing the synthesis parameter space to a single physical parameter and enables fabrication of highly magnetic and uniform zinc ferrite nanocubes over a broad size range. The resulting particles are promising for a range of applications from magnetic fluid hyperthermia to actuation of macromolecules.
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Affiliation(s)
- Aidin Lak
- Department of Physics and Center for NanoScience , LMU Munich , Amalienstr. 54 , 80799 Munich , Germany
| | - Tamara Kahmann
- Institute for Electrical Measurement Science and Fundamental Electrical Engineering , Technische Universität Braunschweig , Hans-Sommer-Str. 66 , 38106 Braunschweig , Germany
| | - Simon Jakob Schaper
- Lehrstuhl für Funktionelle Materialien, Physik-Department , Technische Universität München , James-Franck-Str. 1 , 85748 Garching , Germany
| | - Jaroslava Obel
- Department of Chemistry and Pharmacy, Analytical Division , LMU Munich , Butenandtstr. 5-13 , 81377 Munich , Germany
| | - Frank Ludwig
- Institute for Electrical Measurement Science and Fundamental Electrical Engineering , Technische Universität Braunschweig , Hans-Sommer-Str. 66 , 38106 Braunschweig , Germany
| | - Peter Müller-Buschbaum
- Lehrstuhl für Funktionelle Materialien, Physik-Department , Technische Universität München , James-Franck-Str. 1 , 85748 Garching , Germany
| | - Jan Lipfert
- Department of Physics and Center for NanoScience , LMU Munich , Amalienstr. 54 , 80799 Munich , Germany
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Hölscher J, Andersen HL, Saura-Múzquiz M, Garbus PG, Christensen M. Correlation between microstructure, cation distribution and magnetism in Ni1−xZnxFe2O4 nanocrystallites. CrystEngComm 2020. [DOI: 10.1039/c9ce01324e] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A reliable crystallographic model of Ni1−xZnxFe2O4 is presented using a combination of different methods; TEM, STEM-HAADF, and powder diffraction data from different sources (in-house, synchrotron and neutron).
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Affiliation(s)
- Jennifer Hölscher
- Center for Materials Crystallography
- Department of Chemistry and Interdisciplinary Nanoscience Centre (iNANO)
- Aarhus University
- DK-8000 Aarhus C
- Denmark
| | - Henrik Lyder Andersen
- Center for Materials Crystallography
- Department of Chemistry and Interdisciplinary Nanoscience Centre (iNANO)
- Aarhus University
- DK-8000 Aarhus C
- Denmark
| | - Matilde Saura-Múzquiz
- Center for Materials Crystallography
- Department of Chemistry and Interdisciplinary Nanoscience Centre (iNANO)
- Aarhus University
- DK-8000 Aarhus C
- Denmark
| | - Pelle Gorm Garbus
- Center for Materials Crystallography
- Department of Chemistry and Interdisciplinary Nanoscience Centre (iNANO)
- Aarhus University
- DK-8000 Aarhus C
- Denmark
| | - Mogens Christensen
- Center for Materials Crystallography
- Department of Chemistry and Interdisciplinary Nanoscience Centre (iNANO)
- Aarhus University
- DK-8000 Aarhus C
- Denmark
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39
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Eshtehardian B, Rouhani M, Mirjafary Z. Green protocol for synthesis of MgFe2O4 nanoparticles and study of their activity as an efficient catalyst for the synthesis of chromene and pyran derivatives under ultrasound irradiation. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2019. [DOI: 10.1007/s13738-019-01783-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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40
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Heo J, Yoon Y, Lee G, Kim Y, Han J, Park CM. Enhanced adsorption of bisphenol A and sulfamethoxazole by a novel magnetic CuZnFe 2O 4-biochar composite. BIORESOURCE TECHNOLOGY 2019; 281:179-187. [PMID: 30822638 DOI: 10.1016/j.biortech.2019.02.091] [Citation(s) in RCA: 116] [Impact Index Per Article: 23.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2018] [Revised: 02/16/2019] [Accepted: 02/20/2019] [Indexed: 06/09/2023]
Abstract
The widespread occurrence of endocrine-disrupting compound and pharmaceutical active compounds such as bisphenol A (BPA) and sulfamethoxazole (SMX) in natural freshwater resources can cause serious environmental problems even at low exposure levels. In this work, in order to remove BPA and SMX from aqueous solutions, a novel biochar-supported magnetic CuZnFe2O4 composite (CZF-biochar) was synthesized by a facile one-pot hydrothermal process. After characterization studies, the key factors affecting BPA and SMX adsorption on CZF-biochar were comprehensively investigated. The primary mechanisms for BPA and SMX adsorption included charge-assisted H-bonding, hydrophobic, and π-π electron donor-acceptor interactions. In summary, considering the fast kinetics, high adsorption properties, easy magnetic separation, and recyclability for multiple reuses, the CZF-biochar composite has potential for the removal of BPA, SMX, and potentially other emerging organic contaminants from contaminated soil and water.
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Affiliation(s)
- Jiyong Heo
- Department of Civil and Environmental Engineering, Korea Army Academy at Yeongcheon, 495 Hogook-ro, Gokyungmeon, Yeongcheon, Gyeongbuk 38900, Republic of Korea
| | - Yeomin Yoon
- Department of Civil and Environmental Engineering, University of South Carolina, Columbia, 300 Main Street, SC 29208, USA
| | - Gooyong Lee
- Green Technology Center, Namsan Square Bldg., 173, Toegye-ro, Jung-gu, Seoul 04554, Republic of Korea
| | - Yejin Kim
- Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea
| | - Jonghun Han
- Department of Civil and Environmental Engineering, Korea Army Academy at Yeongcheon, 495 Hogook-ro, Gokyungmeon, Yeongcheon, Gyeongbuk 38900, Republic of Korea
| | - Chang Min Park
- Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea.
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41
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Mørch MI, Ahlburg JV, Saura-Múzquiz M, Eikeland AZ, Christensen M. Structure and magnetic properties of W-type hexaferrites. IUCRJ 2019; 6:492-499. [PMID: 31098029 PMCID: PMC6503931 DOI: 10.1107/s2052252519003130] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2019] [Accepted: 03/05/2019] [Indexed: 06/08/2023]
Abstract
W-type hexaferrites (WHFs) (SrMe 2Fe16O27, Me = Mg, Co, Ni and Zn) are hard magnetic materials with high potential for permanent magnet applications owing to their large crystalline anisotropy and high cation tunability. However, little is known with regards to their complex structural and magnetic characteristics. Here, the substitution of metals (Me = Mg, Co, Ni and Zn) in WHFs is described and their crystal and magnetic structures investigated. From joined refinements of X-ray and neutron powder diffraction data, the atomic positions of the Me atoms were extracted along with the magnetic dipolar moment of the individual sites. The four types of WHFs exhibit ferrimagnetic ordering. For Mg, Ni and Zn the magnetic moments are found to be ordered colinearly and with the magnetic easy axis along the crystallographic c axis. In SrCo2Fe16O27, however, the spontaneous magnetization changes from uniaxial to planar, with the moments aligning in the crystallographic ab plane. Macromagnetic properties were measured using a vibration sample magnetometer. The measured saturation magnetization (M s) between the different samples follows the same trend as the calculated M s extracted from the refined magnetic moments of the neutron powder diffraction data. Given the correlation between the calculated M s and the refined substitution degree of the different Me in specific crystallographic sites, the agreement between the measured and calculated M s values consolidates the robustness of the structural and magnetic Rietveld model.
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Affiliation(s)
- Mathias I. Mørch
- Center for Materials Crystallography, Department of Chemistry and Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Langelandsgade 140, Aarhus C 8000, Denmark
| | - Jakob V. Ahlburg
- Center for Materials Crystallography, Department of Chemistry and Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Langelandsgade 140, Aarhus C 8000, Denmark
| | - Matilde Saura-Múzquiz
- Center for Materials Crystallography, Department of Chemistry and Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Langelandsgade 140, Aarhus C 8000, Denmark
| | - Anna Z. Eikeland
- Center for Materials Crystallography, Department of Chemistry and Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Langelandsgade 140, Aarhus C 8000, Denmark
| | - Mogens Christensen
- Center for Materials Crystallography, Department of Chemistry and Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Langelandsgade 140, Aarhus C 8000, Denmark
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42
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Demirci Dönmez ÇE, Manna PK, Nickel R, Aktürk S, van Lierop J. Comparative Heating Efficiency of Cobalt-, Manganese-, and Nickel-Ferrite Nanoparticles for a Hyperthermia Agent in Biomedicines. ACS APPLIED MATERIALS & INTERFACES 2019; 11:6858-6866. [PMID: 30676734 DOI: 10.1021/acsami.8b22600] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
In this study, the ac magnetic hyperthermia responses of spinel CoFe2O4, MnFe2O4, and NiFe2O4 nanoparticles of comparable sizes (∼20 nm) were investigated to evaluate their feasibility of use in magnetic hyperthermia. The heating ability of EDT-coated nanoparticles which were dispersed in two different carrier media, deionized water and ethylene glycol, at concentrations of 1 and 2 mg/mL, was evaluated by estimating the specific loss power (SLP) (which is a measure of magnetic energy transformed into heat) under magnetic fields of 15, 25, and 50 kA/m at a constant frequency of 195 kHz. The maximum value of SLP has been found to be ∼315 W/g for CoFe2O4 and ∼295 W/g for MnFe2O4 and NiFe2O4 nanoparticles. We report very promising heating temperature rising characteristics of CoFe2O4, MnFe2O4, and NiFe2O4 nanoparticles under different applied magnetic fields that indicate the effectiveness of these nanoparticles as hyperthermia agents.
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Affiliation(s)
| | | | | | - Selçuk Aktürk
- Department of Physics , Muğla Sıtkı Koçman University , 48000 Muğla , Turkey
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