Microwave assisted hydrothermally synthesized cobalt doped zinc ferrites nanoparticles for the degradation of organic dyes and antimicrobial applications

Sherin, J.F. Joe; Bessy, T.C.; Asha, S.; Kumar, Chanchal; Huessien, Dina; Bindhu, M.R.; Elshikh, Mohamed S.; Alarjani, Khaloud Mohammed

doi:10.1016/j.envres.2022.112687

Cited by 14 publications

(8 citation statements)

References 66 publications

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“…Various fabrication methodologies can be adopted for the ferrites to achieve different particle sizes and morphologies. The most commonly used methods include microwave hydrothermal synthesis, , sol–gel synthesis, combustion, oxidation, nitrilotriacetate precursor, stearic acid gel, solid-state, , coprecipitation, and hydrothermal methods . The sol–gel autocombustion method is superior due to its controlled microstructure, simplicity, efficiency, and economy.…”

Section: Introductionmentioning

confidence: 99%

Tuning the Magnetic Behavior of Zinc Ferrite via Cobalt Substitution: A Structural Analysis

Hussain,

Mehmood,

Ali

et al. 2024

ACS Omega

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Cobalt-doped zinc ferrite is a contemporary material with significant structural and magnetic characteristics. Our study explores the magnetic properties of cobalt-substituted zinc ferrite (Zn x Co 1−x Fe 2 O 4 ), synthesized via a simple sol−gel method. By varying the cobalt ratio from 0 to 0.5, we found that zinc substitution impacts both the magnetization and lattice parameters. FTIR analysis suggested the presence of functional groups, particularly depicting an M−O stretching band, within octahedral and tetrahedral clusters. X-ray diffraction analysis confirmed the phase purity and cubic structure. The synthesized materials exhibited an average particle size of 24−75 nm. Scanning electron microscopy revealed the morphological properties, confirming the formation of truncated octahedral particles. In order to determine the stability, mass loss (%), and thermal behavior, a thermal analysis (thermogravimetric analysis (TGA)/differential thermal analysis (DTA)) was performed. The magnetic properties of the synthesized ferrites were confirmed via a vibrating sample magnetometer (VSM). Finally, the highest saturated magnetization and lowest coercivity values were observed with higher concentrations of the cobalt dopant substituting zinc. The synthesized nanomaterials have good stability as compared to other such materials and can be used for magnetization in the near future.

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Section: Introductionmentioning

confidence: 99%

Tuning the Magnetic Behavior of Zinc Ferrite via Cobalt Substitution: A Structural Analysis

Hussain,

Mehmood,

Ali

et al. 2024

ACS Omega

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“…Escherichia coli and S. aureus are the dangerous pathogens that create a speedy resistance to antibiotics. [ 3 ] The degradation of methylene blue and methyl orange by photocatalytic activity under visible‐light irradiation in the presence of various percentages of composite catalyst synthesized by the thermal decomposition was studied by Saravanan et al [ 20 ] Tongqin et al evaluated the photodegradation of methylene blue and methyl orange by hydrothermally synthesized ZnO/CuO NCs. [ 21 ] Sathishkumar et al attempted to report the degradation of Acid Red 88 in aqueous solutions by wet‐impregnation method under visible‐light irradiation by CuO/ZnO nano photocatalyst.…”

Section: Introductionmentioning

confidence: 99%

“…[2] The hazardous pollutants in the dyeing wastewater must be treated before being led into the environment.Multifunctional and eco-friendly nanocomposites (NCs) have drawn tremendous attention in the field of nanomaterial science. [3] The hydrothermal method is a cost-effective and versatile process for the production of NCs with high surface areas for several applications including anticancer materials and bactericides. [4,5] Metal nanoparticles (NPs) exhibit physical and chemical properties that differ from that of bulk materials…”

mentioning

confidence: 99%

Environmental Remediation of Real Textile Dyeing Wastewater Under Visible Light and Inactivation of Pathogenic Bacteria Using ZnO/CuO Nano‐Needles

Ramaraj

Mahalingam

Parimaladevi

et al. 2023

Physica Status Solidi (a)

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Textile industries have an immense existence in a country's economy. Large quantity of water is consumed by textile dyeing industries and produces volumes of wastewater. Treating these hazardous effluents to make them environmental friendly, using nanocatalysts is the best promising method. Metal oxide nanomaterials have emerged as an important tool for environmental remediation. Herein the hydrothermally synthesized ecofriendly and low‐cost zinc oxide/copper oxide nanocomposites (ZnO/CuO NCs) with different proportions of binary oxides are evaluated for the applications of degrading organic pollutants and antibacterial activity. The influence of doping is also studied in structural, optical, morphological, photocatalytic, and antibacterial activities. The presence of CuO in NCs affirms the formation of ZnO/CuO NCs. Photodegradation of Congo Red (CR) and real textile dyeing wastewater (TDW) under visible light irradiation by 0.5 M ZnO:0.5 M CuO NCs reveal them to act as a perfect catalyst by tuning doping concentration of Cu in ZnO, with 1.9 × 10−3 and 5.4 × 10−3 M min−1 rate constant. Hybrid nanocomposite materials exhibit high antibacterial activity against Staphylococcus aureus and Escherichia coli with 5 and 6 mm inhibition zone. The experimental characteristics of NCs are explained by a combination of electronic band structure due to size effect and tuning metal oxide proportions in comparison to that of pure metal oxide.

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“…Cubic spinel ferrites represent a class of highly stable materials [ 1 ], which provide interesting electrical [ 2 , 3 , 4 ], magnetic [ 5 , 6 ], optical [ 7 , 8 ] and catalytic features [ 9 , 10 , 11 ]. The applicability of these materials can be further improved by tuning their properties via suitable preparation conditions [ 1 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

“…Nonetheless, the bulk zinc ferrite is paramagnetic at room temperature because, being the normal spinel, all Fe III ions are located in octahedral sites only (Zn II ions are diamagnetic). Thus, in bulk, room temperature ferromagnetic behaviour is observed only for substituted zinc ferrites [ 10 ]. However, zinc ferrite nanoparticles can exhibit magnetic behavior, which is caused by the cation distribution, where

[ 12 ].…”

Section: Introductionmentioning

confidence: 99%

Microwave-Enhanced Crystalline Properties of Zinc Ferrite Nanoparticles

et al. 2022

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Two series of ZnFe2O4 mixed cubic spinel nanoparticles were prepared by a coprecipitation method, where a solution of Fe3+ and Zn2+ was alkalised by a solution of NaOH. While the first series was prepared by a careful mixing of the two solutions, the microwave radiation was used to enhance the reaction in the other series of samples. The effect of the microwave heating on the properties of the prepared particles is investigated. X-ray powder diffraction (XRD), 57Fe Mössbauer spectroscopy and magnetometry were employed to prove the cubic structure and superparamagnetic behavior of the samples. The particle size in the range of nanometers was investigated by a transmission electron microscopy (TEM), and the N2 adsorption measurements were used to determine the BET area of the samples. The stoichiometry and the chemical purity were proven by energy dispersive spectroscopy (EDS). Additionally, the inversion factor was determined using the low temperature Mössbauer spectra in the external magnetic field. The microwave heating had a significant effect on the mean coherent length. On the other hand, it had a lesser influence on the size and BET surface area of the prepared nanoparticles.

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Microwave assisted hydrothermally synthesized cobalt doped zinc ferrites nanoparticles for the degradation of organic dyes and antimicrobial applications

Cited by 14 publications

References 66 publications

Tuning the Magnetic Behavior of Zinc Ferrite via Cobalt Substitution: A Structural Analysis

Tuning the Magnetic Behavior of Zinc Ferrite via Cobalt Substitution: A Structural Analysis

Environmental Remediation of Real Textile Dyeing Wastewater Under Visible Light and Inactivation of Pathogenic Bacteria Using ZnO/CuO Nano‐Needles

Microwave-Enhanced Crystalline Properties of Zinc Ferrite Nanoparticles

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