Exploring Structural Properties of Cobalt Ferrite Nanoparticles from Natural Sand

Yuliantika, Defi; Taufiq, Ahmad; Hidayat, Arif; Sunaryono, Sunaryono; Hidayat, Nurul; Soontaranon, Siriwat

doi:10.1088/1757-899x/515/1/012047

Cited by 24 publications

(10 citation statements)

References 26 publications

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“…In the case of Co 0.3 Zn 0.7 Fe 2 O 4 and Co 0.4 Zn 0.6 Fe 2 O 4 NPs, the peak at 1626 cm −1 shifts to a slightly lower frequency upon substitution of Co, implying that both samples are sensitive to moisture and water molecules 29 . Additionally, the peak at 1435 cm −1 corresponds to the bending modes of anionic carboxylate C-H by ethylene glycol (EG) coated on the surfaces of nanoparticles 30,31 NPs. Moreover, it can kinetically control the growth rates of crystals and the morphology of NPs, as reported by Gözüak et al 25 .…”

Section: Resultsmentioning

confidence: 99%

Influence of Co doping on phase, structure and electrochemical properties of hydrothermally obtained CoxZn1−xFe2O4 (x = 0.0–0.4) nanoparticles

Putjuso

Karaphun

et al. 2023

Sci Rep

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In this work, CoxZn1−xFe2O4 (x = 0.0–0.4) nanoparticles (NPs) were successfully synthesized by a hydrothermal method at 200 °C for 12 h. X-ray diffraction revealed a pure cubic spinel phase of all samples with space group Fd-3m. Fourier transform infrared spectrometry disclosed the vibrational modes of metal oxides in the spinel structure. Scanning electron microscopy and transmission electron microscopy disclosed a uniform distribution of cuboidal shape NPs with a decreased average NPs size from 22.72 ± 0.62 to 20.85 ± 0.47 nm as the Co content increased. X-ray absorption near edge spectroscopy results confirmed the presence of Zn2+, Co2+ and Fe2+/Fe3+ in Co-doped samples. The pore volume, pore size and specific surface area were determined using N2 gas adsorption/desorption isotherms by the Brunauer–Emmett–Teller (BET) and Barrett–Joyner–Halenda (BJH) techniques. Electrochemical properties of supercapacitors, having active CoxZn1−xFe2O4 (x = 0.0–0.4) NPs as working electrodes, indicated pseudo-capacitor performance related to the Faradaic redox reaction. Interestingly, the highest specific capacitance (Csc), 855.33 F/g at 1 A/g, with a capacity retention of 90.41% after 1000 GCD cycle testing was achieved in the Co0.3Zn0.7Fe2O4 electrode.

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Section: Resultsmentioning

confidence: 99%

Influence of Co doping on phase, structure and electrochemical properties of hydrothermally obtained CoxZn1−xFe2O4 (x = 0.0–0.4) nanoparticles

Putjuso

Karaphun

et al. 2023

Sci Rep

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“…The Kulbelka-Munk fun. F (R) can be derived by Tauc's relation (21); [42] ahv ¼ Aðhv À EgÞ 1=2 (21) Where α is the abs. coefficient, hν is photon energy, A is the proportionality constant and Eg is the bandgap.…”

Section: Study Of Dc-electrical Resistivitymentioning

confidence: 99%

“…The molecular, morphological, magnetic, and other characteristics of cobalt ferrite produced by chemical co‐precipitation, sol‐gel auto‐combustion synthesis, and other processes have been extensively studied [20] . Due to its superparamagnetic properties, magnetic nature, cheap cost, and biocompatibility, cobalt ferrite is used in a variety of uses [21] . There aren′t many reports in the literature about simultaneous doping at the Co 2+ site and the Fe 3+ site by other sites with divalent and trivalent cations, respectively.…”

Section: Introductionmentioning

confidence: 99%

Decolonization of MB Dye (C₁₆H₁₈CIN₃S) under the Natural Light Using Pristine and Zn−Y Substituted CoFe₂O₄ as a Catalyst

Patil,

Birajdar,

Alwesabi

et al. 2023

ChemistrySelect

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Co2Fe2O4 NPs were made using the sol‐gel ignition technique employing citric acid (C6H8O7.6H2O) as a reducing agent to oxidizing agent with a ratio of 1 : 3. A thorough study of the effects of divalent Zn2+ and trivalent Y3+ ion on their structural, Infra‐red, morphological, magnetic, DC‐electrical, optical, and photocatalytic activity. All of the samples have crystallized to a cubic spinel structure with a single phase space group Fd3m, according to the analysis of the XRD pattern consisting of the intense reflections (220), (311) (222), (400), (422), (511), (440), (533), and (444). Transmission electron microscopy (TEM) suggested the particle size range of ~27 nm; and demonstrates the agglomerations on the tip of MNPs, which are ideal for increasing surface area, and infrared study verifies the spinel structure. With a decrease in the hysteresis loop for the Zn−Y ligand, the magnetic hysteresis loops demonstrate a ferrimagnetic character. With Zn−Y, magnetic characteristics are noticeably affected; saturation magnetization (Ms) 70.9133 to 59.2148 emu/g; and coercivity (Hc) 1900.30 to 193.96 Oe both exhibit a decrease. The DC‐electrical resistivity image reveals the CFMNPs′ semiconducting nature and the optical energy bandgap demonstrates a decrease from their original state. The MB dye's decolorization demonstrates the amazing deterioration in a short amount of time 20 to 80 minutes range was observed to be 35.88, 61.92, 76.40, and 94.07 %.

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“…Besides the magnetic behavior, other properties that spinel ferrites possess include spin canting effect, spin-glasslike behavior, and higher heat and corrosion resistance [12,22]. The common band gap energies for some spinel ferrites are as follows: CuFe 2 O 4 (1.32 eV), ZnFe 2 O 4 (1.92 eV), CoFe 2 O 4 (2.27 eV), and NiFe 2 O 4 (2.19 eV) [23,24]. Due to the small band gap energy of ferrites, which makes them effective under absorption of visible light irradiation, they are extremely suitable for the removal of organic pollutants in water and wastewater treatment processes [22,23].…”

Section: Magnetic Ferrites Nanoparticlesmentioning

confidence: 99%

Removal of Organic Dyes from Water and Wastewater Using Magnetic Ferrite-Based Titanium Oxide and Zinc Oxide Nanocomposites: A Review

et al. 2021

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Heterogeneous photocatalysis using titanium dioxide (TiO2) and zinc oxide (ZnO) has been widely studied in various applications, including organic pollutant remediation in aqueous systems. The popularity of these materials is based on their high photocatalytic activity, strong photosensitivity, and relatively low cost. However, their commercial application has been limited by their wide bandgaps, inability to absorb visible light, fast electron/hole recombination, and limited recyclability since the nanomaterial is difficult to recover. Researchers have developed several strategies to overcome these limitations. Chief amongst these is the coupling of different semi-conductor materials to produce heterojunction nanocomposite materials, which are both visible-light-active and easily recoverable. This review focuses on the advances made in the development of magnetic ferrite-based titanium oxide and zinc oxide nanocomposites. The physical and magnetic properties of the most widely used ferrite compounds are discussed. The spinel structured material had superior catalytic and magnetic performance when coupled to TiO2 and ZnO. An assessment of the range of synthesis methods is also presented. A comprehensive review of the photocatalytic degradation of various priority organic pollutants using the ferrite-based nanocomposites revealed that degradation efficiency and magnetic recovery potential are dependent on factors such as the chemical composition of the heterojunction material, synthesis method, irradiation source, and structure of pollutant. It should be noted that very few studies have gone beyond the degradation efficiency studies. Very little information is available on the extent of mineralization and the subsequent formation of intermediate compounds when these composite catalysts are used. Additionally, potential degradation mechanisms have not been adequately reported.

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Exploring Structural Properties of Cobalt Ferrite Nanoparticles from Natural Sand

Cited by 24 publications

References 26 publications

Influence of Co doping on phase, structure and electrochemical properties of hydrothermally obtained CoxZn1−xFe2O4 (x = 0.0–0.4) nanoparticles

Influence of Co doping on phase, structure and electrochemical properties of hydrothermally obtained CoxZn1−xFe2O4 (x = 0.0–0.4) nanoparticles

Decolonization of MB Dye (C₁₆H₁₈CIN₃S) under the Natural Light Using Pristine and Zn−Y Substituted CoFe₂O₄ as a Catalyst

Removal of Organic Dyes from Water and Wastewater Using Magnetic Ferrite-Based Titanium Oxide and Zinc Oxide Nanocomposites: A Review

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Exploring Structural Properties of Cobalt Ferrite Nanoparticles from Natural Sand

Cited by 24 publications

References 26 publications

Influence of Co doping on phase, structure and electrochemical properties of hydrothermally obtained CoxZn1−xFe2O4 (x = 0.0–0.4) nanoparticles

Influence of Co doping on phase, structure and electrochemical properties of hydrothermally obtained CoxZn1−xFe2O4 (x = 0.0–0.4) nanoparticles

Decolonization of MB Dye (C16H18CIN3S) under the Natural Light Using Pristine and Zn−Y Substituted CoFe2O4 as a Catalyst

Removal of Organic Dyes from Water and Wastewater Using Magnetic Ferrite-Based Titanium Oxide and Zinc Oxide Nanocomposites: A Review

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Decolonization of MB Dye (C₁₆H₁₈CIN₃S) under the Natural Light Using Pristine and Zn−Y Substituted CoFe₂O₄ as a Catalyst