Remediation of inorganic pollutants using nanoferrites DOI

Leena Bhardwaj,

Ritesh Verma, Huimin Wang

et al.

Elsevier eBooks, Journal Year: 2024, Volume and Issue: unknown, P. 213 - 230

Published: Oct. 1, 2024

Language: Английский

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

Rania Ramadan,

Mai M. El-Masry

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

Citations

18
Evaluation of Structural and Electrochemical Properties of LaFe0.8Cu0.2-xTixO (x=0.1) Perovskite Oxide DOI
R. Udayabhaskar, P. E. Lokhande, Radhamanohar Aepuru

et al.

Materials Chemistry and Physics, Journal Year: 2024, Volume and Issue: 328, P. 130014 - 130014

Published: Oct. 9, 2024

Language: Английский

Citations

4
Biogenic Cobalt Ferrite Nanoparticles Synthesized with Brachychiton populneus Extract for Visible-Light-Driven Dye Degradation DOI

Abdullah N. Alotaibi,

Yaaser Q. Almulaiky, Abdullah Al-Dakhil

et al.

Journal of Inorganic and Organometallic Polymers and Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 18, 2025

Language: Английский

Citations

0
Structural, Surface, Magnetic Study and Application of Nanoparticles CoFe2O4, ZnO and its Nanocomposite DOI Creative Commons
M. M. Arman, S.I. El‐Dek

Journal of Superconductivity and Novel Magnetism, Journal Year: 2023, Volume and Issue: 36(10-12), P. 1913 - 1925

Published: Oct. 23, 2023

Abstract Nanoparticles of CoFe 2 O 4 and ZnO were synthesized using the citrate auto-combustion method. A nanocomposite /ZnO (70:30) was prepared. XRD verified that samples in nanoscale with crystallite sizes 66.01, 12.48, 17.47, respectively. The HRTEM image illustrates cubic structure. FESEM showed shape , ZnO, nanoparticles is nearly spherical morphology. EDAX measurements illustrated obtained nominal compositions similar to their chemical formula. XPS spectra investigated confirmed presence Co 2+ 3+ ions, as well Fe ions. saturation magnetization increased for than parent due strong ferromagnetic coupling. Antibacterial activity recorded despite its absence from two parents.

Language: Английский

Citations

8
Highly efficient lead removal from water by Nd0.90Ho0.10FeO3 nanoparticles and studying their optical and magnetic properties DOI Creative Commons
M. M. Arman

Scientific Reports, Journal Year: 2023, Volume and Issue: 13(1)

Published: Oct. 3, 2023

Abstract Ho-doped NdFeO 3 was synthesized using the citrate method. The X-ray diffraction (XRD) illustrated that Nd 0.90 Ho 0.10 FeO crystalline at nanoscale, with a crystallite size of 39.136 nm. field emission scanning electron microscope (FESEM) porous nature , which increases active sites to absorb heavy metals on sample surface. Energy-dispersive (EDX) data assures prepared has chemical formula . magnetic properties were determined magnetization hysteresis loop and Faraday’s Many parameters have been discussed, such as coercive field, exchange bias (H ex ), switching distribution (SFD). an antiferromagnetic (AFM) character effective moment 3.903 B.M. UV–visible light absorbance is due transfer electrons from oxygen 2p state iron 3d state. nanoparticles optical direct transition energy gap E g = 1.106 eV. can adsorb many (Co 2+ Ni Pb Cr 6+ Cd ) water. removal efficiency high for ions, equals 72.39%. Langmuir isotherm mode best-fit model adsorbing ions

Language: Английский

Citations

6
Comparative analysis of adsorption of Pb(II) ions by different hexagonal nanoferrites synthesized using the flash-combustion method DOI

Rania Ramadan,

Ghada A. Alzaidy,

Fahad N. Almutairi

et al.

Applied Physics A, Journal Year: 2023, Volume and Issue: 129(11)

Published: Oct. 10, 2023

Language: Английский

Citations

6
Green fuel mediated Europium doped Lanthanum ferrites Synthesis, characterisation of and their application as photocatalyst and antibacterial agents DOI

S. Rama Swamy,

K. Gurushantha,

K. Keshavamurthy

et al.

Inorganic Chemistry Communications, Journal Year: 2024, Volume and Issue: 168, P. 112978 - 112978

Published: Aug. 14, 2024

Language: Английский

Citations

2
Flash combustion prepared Sm and Co doped Sr hexaferrite for environmental applications DOI Creative Commons
Mai M. El-Masry,

Rania Ramadan

Adsorption, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 21, 2024

Language: Английский

Citations

2
Effect of divalent cations (Co2+ and Ni2+) on microstructure, physical properties and application of Nd DOI
M. M. Arman

Journal of Rare Earths, Journal Year: 2023, Volume and Issue: unknown

Published: Dec. 1, 2023

Language: Английский

Citations

4
Enhancement the physical properties of V2O5/Ni0.1Fe2.9O4 nanocomposite DOI Creative Commons

Rania Ramadan

Journal of the Australian Ceramic Society, Journal Year: 2024, Volume and Issue: unknown

Published: July 15, 2024

Abstract Nanocomposite containing vanadium oxide (V 2 O 5 ) and magnetite (Fe 3 4 doped with nickel (Ni) ion were synthesized according to the formula of Ni 0.1 Fe 2.9 /V . The obtained composition was characterized by XRD, FTIR, FESEM. FESEM micrograph shows that existence two different phases related V Ni-Magnetite. Moreover,the roughness parameters have values 281, 85 385nm for average R a , root mean square q, Maximum height T respectively. Moreover, magnetic behavior sample studied, we found adding dopped magnetite, curie temperature value lowered from 750 o C 625 C. activation energy calculated be 0.22 eV 0.08 1000 Hz 3MHz

Language: Английский

Citations

1