Adsorption of Cd and Cr ions from industrial wastewater using Ca doped Ni–Zn nanoferrites: Synthesis, characterization and isotherm analysis

Punia, Pinki; Aggarwal, Ruchi; Kumar, Rakesh; Dhar, Rakesh; Thakur, Preeti; Thakur, Atul

doi:10.1016/j.ceramint.2022.02.234

Cited by 44 publications

(2 citation statements)

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“…Citrate control technique offers the benefit of producing homogeneous nano materials that have a large surface area, which is suitable for a variety of applications [75][76][77]. This technique involves heating of an aqueous solution containing an oxidizer (often metal nitrates) in the presence of a fuel, at comparatively low temperatures to break it down to form the preferred products.…”

Section: Citrate Control Techniquementioning

confidence: 99%

Manganese Oxide Nanoparticles: An Insight into Structure, Synthesis and Applications

2023

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Manganese oxide nanoparticles with different crystal phases, morphologies, and structural diversity along with their exceptional properties like high specific surface area, a high fraction of surface atoms, non‐toxic nature, and excellent redox properties are drawing attention for various applications in storage science, especially in the batteries, super‐capacitors, energy conversion, and the environmental catalysis field. Precise control of particle size, morphology, surface area, Mnx+ oxidation state, etc. is the utmost important aspect to explore their application to the full potential. Here, the emphasis is on the recent trends in manganese oxide research – structure, synthesis, and applications. The structure of numerous crystalline phases of manganese oxide nanoparticles are summerized and several facile chemical synthesis processes to achieve the desired crystalline/amorphous structure are discoursed. Temperature and different synthesis conditions dependent phase transformations of β‐MnO2, α‐Mn2O3, and Mn3O4 from α‐MnO2 are discussed as well. The pragmatic approach directs that the application field is mostly controlled by the morphologies.

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Section: Citrate Control Techniquementioning

confidence: 99%

Manganese Oxide Nanoparticles: An Insight into Structure, Synthesis and Applications

2023

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“…The blood‐borne candidal diseases are linked to high humanity rates. The confined weapons for a drug against fungal and the capability to develop drug resistance in many ways, including resistance to natural biofilms, contribute to their status as the fourth most common cause of hospitalized diseases 54 . Consequently, to increase the efficacy of cells in medical science, these are integrated with the nonmetal/metal addicted to the matrices of cobalt ferrite.…”

Section: Introductionmentioning

confidence: 99%

Green‐synthesis of Ni‐Co nanoferrites using aloe vera extract: Structural, optical, magnetic, and antimicrobial studies

Dhanda

Thakur

Kumar

et al. 2023

Applied Organom Chemis

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Nickel-doped cobalt nanoferrites (Ni x Co 1-x Fe 2 O 4 , where x = 0.0 to 1.0 with step size 0.2) were prepared using the auto combustion method in which aloe vera extract was taken as a fuel. Further, characterization for antimicrobial, structural, optical, and magnetic studies was performed for the prepared ferrite nanoparticles. Antimicrobial activity was assessed against a prevalent human fungal pathogen, Candida albicans. The X-ray diffraction (XRD) pattern confirmed the spinel cubic phase with an average crystallite size of 28 nm. The Fourier transform infrared spectroscopy (FTIR) confirmed the stretching mode of vibration at the tetrahedral and the octahedral sites. Further, the analysis of magnetic properties was done using vibrating sample magnetometer (VSM), and the magnetic parameters, specific magnetization (67.69 emu/g) as well as squareness ratio σ R /σ S (0.47) were observed. From the UV-Visible absorbance spectra, the absorbance band edge was observed between 700 and 800 nm, and band gap values were observed at 2.84 eV for x = 1.0. Furthermore, the antimicrobial studies of the obtained ferrite nanoparticles were inspected against the C. albicans fungi, and it was observed that nickel-doped cobalt ferrite shows an inhibitory nature. Maximum inhibition of 0.43 (67% growth) was observed for the composition x = 1.0. Therefore, these ferrite nanoparticles can be used as a drug against fungus infection.aloe vera, Candida albicans, cobalt ferrite, nickel ferrite, XRD | INTRODUCTIONFerrite nanoparticles get much more attention from researchers due to their unique chemical, optical, electrical and magnetic properties. [1][2][3][4] Spinel ferrites are the magnetic particles with the formula MFe 2 O 4 (whereas M represents Zn, Ni, Mn, Co, etc.) used in varied fields like magnetic sensing, data storage, ferrofluid, converters, magneto-optical recording, antennas, humidity sensors, energy storage devices, inductors, and microwave devices. [5][6][7][8] In the scientific world, magnetic nanoparticles attained more interest because of their valuable applications in medical fields like MRI, drug delivery, hyperthermia, ferrofluids, medical diagnostics, and cancer therapy. [9][10][11] The targeting and colloidal stability of nanostructure could be enhanced with the larger sensitivity of nanoparticles and this sensitivity depends on the ratio of surface area to the volume. 12 The nanoparticles have also been used for the waste water treatment and dye degradation property. [13][14][15][16] The properties of

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Synthesis, Characterization, and Adsorption Performance of (Mg_0.4Co_0.4Mn_0.2)Fe₂₋₂_xSm_xSn_xO₄ Nanoparticles for the Removal of Heavy Metal Ions and Water Treatment

Moussa,

Aridi,

AlHajjar

et al. 2024

ChemistrySelect

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Water contamination by heavy metal ions poses a significant environmental threat. This study investigates (Mg0.4Co0.4Mn0.2)Fe2−2xSmxSnxO4 (0.000 ≤ x ≤ 0.050) ferrite nanoparticles (NPs) as eco‐friendly adsorbents for Cu(II), Cr(III), Fe(III), and Zn(II). X‐ray powder diffraction (XRD) confirmed sample purity, with crystallite size decreasing from 20.28 to 13.31 nm as x increased. Scanning and transmission electron microscopies revealed irregular morphology, whereas energy‐dispersive X‐ray showed successful dopant incorporation into the ferrite lattice. Brunauer–Emmett–Teller analysis indicated a surface area increase from 76.5 to 91.4 m2/g with doping. X‐ray photoelectron spectroscopy identified oxidation states, and Fourier transform infrared spectroscopy confirmed the spinel structure. Doping also increased the direct bandgap energy from 3.224 to 3.245 eV and decreased Urbach energy from 0.374 to 0.352 eV. The NPs achieved high removal efficiencies for Cr(III) at 93.3%, Fe(III) at 98.8%, and Zn(II) at 80.6%, though removal of Cu(II) was minimal. The optimal adsorption performance was observed at x = 0.050. Adsorption followed second‐order kinetics and fit the Langmuir isotherm.

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Adsorption of Cd and Cr ions from industrial wastewater using Ca doped Ni–Zn nanoferrites: Synthesis, characterization and isotherm analysis

Cited by 44 publications

References 28 publications

Manganese Oxide Nanoparticles: An Insight into Structure, Synthesis and Applications

Manganese Oxide Nanoparticles: An Insight into Structure, Synthesis and Applications

Green‐synthesis of Ni‐Co nanoferrites using aloe vera extract: Structural, optical, magnetic, and antimicrobial studies

Synthesis, Characterization, and Adsorption Performance of (Mg_0.4Co_0.4Mn_0.2)Fe₂₋₂_xSm_xSn_xO₄ Nanoparticles for the Removal of Heavy Metal Ions and Water Treatment

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Adsorption of Cd and Cr ions from industrial wastewater using Ca doped Ni–Zn nanoferrites: Synthesis, characterization and isotherm analysis

Cited by 44 publications

References 28 publications

Manganese Oxide Nanoparticles: An Insight into Structure, Synthesis and Applications

Manganese Oxide Nanoparticles: An Insight into Structure, Synthesis and Applications

Green‐synthesis of Ni‐Co nanoferrites using aloe vera extract: Structural, optical, magnetic, and antimicrobial studies

Synthesis, Characterization, and Adsorption Performance of (Mg0.4Co0.4Mn0.2)Fe2−2xSmxSnxO4 Nanoparticles for the Removal of Heavy Metal Ions and Water Treatment

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Synthesis, Characterization, and Adsorption Performance of (Mg_0.4Co_0.4Mn_0.2)Fe₂₋₂_xSm_xSn_xO₄ Nanoparticles for the Removal of Heavy Metal Ions and Water Treatment