Structural and Physical Comparison Between CS/PVP Blend and CS/PVP/Sr-Hexaferrite Nanocomposite Films

Journal of Inorganic and Organometallic Polymers and Materials, Journal Year: 2023, Volume and Issue: 33(8), P. 2506 - 2516

Published: May 15, 2023

Abstract CS/PVP blend embedded by Sr-hexaferrite nanoparticles as a novel composite material to improve the optical and magnetic properties of samples. This work aimed study compare functional physical film after before adding SrFe 12 O 19 with different weight percentages form nanocomposite chemical formula CS/PVP/x Wt% ; x = 1, 3, 5 7. was prepared successfully using citrate auto-combustion methods, then added percentages. XRD shows formation in single phase an average crystallite size 44 nm. The semi-crystalline nature decreases addition Sr-hexaferrite. FTIR displays interaction between changing intensity broadening OH band. HRTEM images show that has rod structure particle ranging from 50 100 coercivity value increased increasing weight% nanofiller it 421 Oe for 4502.6 4488.2 3 wt% 7 . transition top valance band bottom conduction CS/PVP/ Wt % 19; 5, system occurred through indirect transition.

Language: Английский

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Effect of (Co and Zn) doping on structural, characterization and the heavy metal removal efficiency of CuFe2O4 nanoparticles

Journal of the Australian Ceramic Society, Journal Year: 2023, Volume and Issue: 60(2), P. 509 - 524

Published: Aug. 23, 2023

Abstract Nanomaterials, especially ferrites, have various applications in mechanical, electrical, and optical fields. However, their abilities environmental remain unexplored. In this work, the flash auto-combustion method has been used to prepare three different compositions of CuFe 2 O 4 , Zn-CuFe Co-CuFe nanocomposite. The structure, spectroscopic, surface, morphological properties prepared samples were characterized using XRD, FTIR, BET, HRTEM, respectively. According XRD analysis, ferrites consist nanocrystalline particles with sizes 24.5, 37.5, 32.6 for Zn-CuFe2O4, Co-CuFe2O4, had a single cubic phase, while tetragonal phase was formed . addition cobalt zinc copper ferrite increased crystallite size lattice parameters. absorption band FTIR spectra, which represents stretching vibrations along [MetalO] bond at octahedral (B) position, nearly constant (412 Cm −1 ) by Zn CuFe2O4. surface area quantity gas adsorbed on Co-CuFe2O4 highest. greatest force constants [(Ko = 1.37 & KT 1.32 105 dyne/cm] detected Co-CuFe2O exhibited highest saturation magnetization as well magnetocrystalline anisotropy. From FESM, homogeneous distribution, is confirmed appropriate synthesis method. nanonanosamples an average particle 79 nm, 66 56 nm sample doping Cu Co Zn. All tested heavy metal (Cr 6+ removal from water; they demonstrated promising results after optimizing experimental conditions pH 7 contact time 50 min, these values reached 54%, 90%, 93% nanocomposite,

Language: Английский

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Process Optimization and Equilibrium, Thermodynamic, and Kinetic Modeling of Toxic Congo Red Dye Adsorption from Aqueous Solutions Using a Copper Ferrite Nanocomposite Adsorbent

Molecules, Journal Year: 2024, Volume and Issue: 29(2), P. 418 - 418

Published: Jan. 15, 2024

In the present investigation of copper ferrite, a CuFe2O4 nanocomposite adsorbent was synthesized using sol–gel method, and its relevance in adsorptive elimination toxic Congo red (CR) aqueous phase examined. A variety structural methods were used to analyze nanocomposite; as-synthesized had agglomerated clusters with porous, irregular, rough surface that could be seen FE-SEM, it also contained carbon (23.47%), oxygen (44.31%), (10.21%), iron (22.01%) elemental composition by weight. Experiments designed achieve most optimized system through utilization central composite design (CCD). The highest uptake CR dye at equilibrium occurred when initial pH value 5.5, adsorbate concentration 125 mg/L, dosage 3.5 g/L. Kinetic studies conducted, they showed adsorption process followed pseudo-second-order (PSO) model (regression coefficient, R2 = 0.9998), suggesting chemisorption mechanism, overall reaction rate governed both film pore diffusion molecules. which molecules taken up onto particle revealed interactions involving electrostatic forces, hydrogen bonding, filling. According isotherm studies, data exhibited strong agreement Langmuir (R2 0.9989), demonstrating maximum monolayer capacity (qmax) 64.72 mg/g 6 302 K. Considering obtained negative ΔG positive ΔHads ΔSads values across all tested temperatures thermodynamic investigations, confirmed characterized as endothermic, spontaneous, feasible, an increased level randomness. developed this study is anticipated find extensive application effluent treatment, owing excellent reusability remarkable capability effectively remove comparison other adsorbents.

Language: Английский

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The Influence of Zn Doping on the Cation Distribution and Antibacterial Activity of CoFe2O4

Journal of Superconductivity and Novel Magnetism, Journal Year: 2023, Volume and Issue: 36(5), P. 1465 - 1480

Published: May 1, 2023

Abstract Nanoparticles of formula Co 1- x Zn Fe 2 O 4 ( = 0.0, 0.3, and 0.5) were prepared successfully using a citrate-auto-combustion method. This work studies the substitution effect 2+ ion on physical, chemical, structural properties CoFe . The structure samples was determined via X-ray diffraction (XRD) Fourier transformed infrared spectrometer (FTIR). investigated ensures that all crystallite into single structure. There is variation size with change in concentration as it observed increased from 16.01 to 30.56 nm by increasing concentration. transform spectra (FTIR) range (390:4000) Cm −1 used for studying elastic spinel ferrites. It that, concentration, moduli increased. morphological surface study calcined scanning electron microscopy (SEM) Gwyddion 2.45 software respectively. roughness average R ) 35.20 at 0 46.6 0.5. At room temperature, magnetic behavior studied studied. maximum saturation magnetization 67.611emu/gm related 0.7 0.3 while highest value exchange bias (H EB 2.15 Oe 0.5 antibacterial activity , tested against Escherichia coli Staphylococcus aureus bacteria. inhibition zone values 8 7.5 mm E. S. respectively, these Generally, results exhibit high possible ferrites applications.

Language: Английский

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Spherical SiO2 growth on LaFeO3 perovskite to create core–shell structures for Cd(II) adsorption on its surface

Journal of Materials Science Materials in Electronics, Journal Year: 2023, Volume and Issue: 34(17)

Published: June 1, 2023

Abstract In this study, LaFeO 3 perovskite is synthesized by the flash method, and then a simple method developed for growing SiO 2 on its surface to construct core/shell nanocomposite. The thickness of shell controlled varying amount tetra-ethyl orthosilicate (TEOS). Two @SiO samples with thicknesses were synthesized. Herein, lattice parameters, morphology, magnetic, adsorption properties investigated nanocomposites are tuned changing content . Results confirm that when increased, prepared nanocomposite showed good performance, removal efficiency enhanced from 50 60% , respectively. It thought enhancement performance related high porosity amorphous nature

Language: Английский

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Sonocatalytic degradation of furazolidone using a heterogeneous triple ion synergy system of ZnFe2O4@ZIF-67 nanostructures: Physicochemical Characterization and degradation pathway

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 157273 - 157273

Published: Oct. 1, 2024

Language: Английский

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Efficient lead removal from aquatic solution by (Co0.7Zn0.3)0.9Ni0.1Fe2O4 ferrite with tunable optical and magnetic properties.

Journal of Water Process Engineering, Journal Year: 2023, Volume and Issue: 54, P. 103958 - 103958

Published: June 26, 2023

Language: Английский

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Thermally stable polyaniline and Mn0.25Co0.75Fe2O4 nanocomposite as an efficient material for high frequency applications at room temperature

Polymer Bulletin, Journal Year: 2023, Volume and Issue: 81(6), P. 5421 - 5442

Published: Aug. 28, 2023

Language: Английский

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Structural and physical investigations of Sr1–xDyxFe12–yCoyO19; (x = 0, 0.05 and y = 0, 0.5) for wastewater treatment

Applied Physics A, Journal Year: 2024, Volume and Issue: 130(6)

Published: May 20, 2024

Language: Английский

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Graphene-based Sm-doped Co-ferrite for environmental applications

Journal of Materials Science Materials in Electronics, Journal Year: 2024, Volume and Issue: 35(19)

Published: July 1, 2024

Abstract A graphene-based Sm-doped Co-ferrite CoSmFe-G nanosample was created using the citrate auto-combustion method. It acts as an antibacterial agent and heavy metal remover. The sample’s physical properties were analyzed various techniques including X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), Raman spectroscopy, scanning electron microscopy (FE-SEM), zeta potential, vibrating sample magnetometer (VSM) measurements. XRD results confirmed presence of a single-phase cubic spinel structure. experimental indicated that doping with graphene samarium significantly altered magnetic nanoparticles, reducing saturation magnetization (MS) values to 35.759 emu/g. showed against both gram-positive gram-negative bacteria, inhibition zones measuring 12–14.5 mm in diameter. Additionally, exhibited efficient (Pb 2+ ) adsorption, maximum removal capacity 99.8% multilayer adsorption mechanism by pseudo-second-order isotherm Freundlich model matching. study explores binding interactions for lead highlights potential (CoSmFe-G) nano samples bio-adsorbent agent. This could practical solutions water disinfection.

Language: Английский

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