Optical and dielectric properties of NiFe2O4 nanoparticles under different synthesized temperature

Parishani, Marziye; Nadafan, Marzieh; Dehghani, Z.; Malekfar, Rasoul; Khorrami, Gh.H.

doi:10.1016/j.rinp.2017.09.049

Cited by 44 publications

(13 citation statements)

References 28 publications

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“…This value was different from previous reports. [17][18] While the energy band gap of MgFe2O4/SiO2 nanocomposite was 2.51 eV, it similar to the research conducted by A. I. Ahmed et al 19 which ranged from 2.40 eV to 2.74 eV, but it smaller than the study by R. A. Putra et al 4 and A. I. Ahmed et al 19 These were caused by microstrain and the crystallite lattices defections due to the synthesis process. Consequently, it could affect the amount of energy band gap as an effect of the quantum confinement.…”

Section: The Optical Propertiessupporting

confidence: 58%

THE STUDY OF OPTICAL PROPERTIES OF MgxN1-xFe2O4/SiO2 NANOCOMPOSITE(x=0; 0.25; 0.5; 0.75; 1.0) AGAINST THE METHYLENE BLUE PHOTODEGRADATION

Putra

Fajriani

Alamsyah

et al. 2019

Jurnal Fisika dan Aplikasinya

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The synthesis of MgxN1-xFe2O4/SiO2 composite nanoparticles, where x=0; 0.25; 0.5; 0.75; 1.0 through coprecipitation method and low temperatures had been successfully carried out. The result of X-ray Diffractometer (XRD) informed that the sample had crystalline forms and different crystallite sizes as the Mg concentration in the sample is increased. The sizes of crystallite produced were between 12.12 to 24.47 nm. In addition, theoretically and experimentally there were differences grid parameters with the energy bandgap of the nanocomposite sample ranged from 2.51 to 2.66 electron volt (eV). Therefore, the MgxN1-xFe2O4/SiO2composite nanoparticles could be referred to the nano-photocatalyst or nano-adsorbent for organic pollutant due to its potential to degrade Methylene Blue waste.

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Section: The Optical Propertiessupporting

confidence: 58%

THE STUDY OF OPTICAL PROPERTIES OF MgxN1-xFe2O4/SiO2 NANOCOMPOSITE(x=0; 0.25; 0.5; 0.75; 1.0) AGAINST THE METHYLENE BLUE PHOTODEGRADATION

Putra

Fajriani

Alamsyah

et al. 2019

Jurnal Fisika dan Aplikasinya

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“…The stretching and bending modes of nickel ferrite individual ions distributed in octahedral and tetrahedral voids can be assigned from IR data, which gives the characteristics bands for each distribution. However, in the case of mundane spinels structure the divalent stringently occupies tetrahedral voids and fine-tuned trivalent ions occupy octahedral voids; transmutations in this distribution result in the formation of inverse spinel material [19][20][21]. There are several methods utilized for the synthesis of nickel ferrites such as co-precipitation method, hydrothermal synthesis, sol-gel method, combustion method, sonochemical synthesis, plasma deposition method, electrospinning, high-energy milling, spray pyrolysis method, magnetic sputtering, water CTAB method, micro-emulsion method, electrochemical method, precursor method, etc.…”

Section: Introductionmentioning

confidence: 99%

Nanocrystalline-modified nickel ferrite films: an effective sensor for industrial and environmental gas pollutant detection

Koli¹,

Kapadnis²,

Deshpande³

2019

J Nanostruct Chem

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The inverse spinel nanocrystalline pure and doped nickel ferrite particles were synthesized by co-precipitation method. The thick films of both pure and doped nickel ferrite nanoparticles were prepared by coating the material on glass substrate via screen printing method. The XRD was used to confirm cubic, crystalline nickel ferrites. The scanning electron microscopy confirms nanosized, cubic nanoparticles of nickel ferrite, and their morphology was investigated. The energy-dispersive spectroscopy was used to comprise elemental composition for pure and doped ferrites. Transmission electron microscopy was attributed for investigation of surface morphology, crystal structure identification of nickel ferrites. The FT-IR was used to find the vibrational frequencies, symmetric, asymmetric stretching and bending modes of metal oxide linkage. The thick films of nickel ferrite were employed for sensing phenomenon of gases such as LPG, NO 2 , CH 3-OH, C 2 H 5-OH, NH 3 and petrol vapours. The pure nickel ferrite showed excellent results for ammonia and nitrogen dioxide gases up to 90.42 and 86.42, respectively. Manganese-and cobalt-doped ferrites were excellent for ammonia and petrol vapours. Modified nickel ferrite effect of dopants cobalt and manganese was investigated. Pure and doped ferrites showed excellent response and recovery for ammonia, NO 2 , petrol vapours and LPG gases.

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“…The XRD patterns of the NiFe 2 O 4 /NG/cellulose composite (Figure 1A) shows reflection planes of (220), (311), (222), (400), (422), (511), (440), and (533) located at 2θ values of 27.34°, 31.70°, 33.05°, 45.61°, 53.90°, 56.60°, 66.35°, and 75.27°, respectively, results that confirm the presence of NiFe 2 O 4 with a face‐centered cubic structure (JCPDS PDF file No. 10‐0325) 30,31 . During synthesis, GO was converted to rGO, which is confirmed by the less intense peak around 2θ = 24.11° (Figure S1 in the Supporting Information).…”

Section: Resultsmentioning

confidence: 76%

Chemical synthesis of NiFe₂O₄/NG/cellulose nanocomposite and its antibacterial potential against bacterial pathogens

Anbu

2021

Biotech and App Biochem

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In this work, a nickel ferrite (NiFe 2 O 4 )/nitrogen-doped-graphene (NG)/cellulose composite (NiFe 2 O 4 /NG/cellulose) was successfully synthesized through a facile chemical route, and its antibacterial potential was evaluated. The synthesized NiFe 2 O 4 /NG/cellulose composite was characterized by performing morphological and structural analyses. The results showed the successful formation of NiFe 2 O 4 -nanoparticles with a spherical shape and a size ranging from 15 to 200 nm. Energy-dispersive X-ray results confirmed the presence of various elements (carbon, nitrogen, oxygen, iron, and nickel) in the reaction mixture. The X-ray diffraction pattern showed the face-centered-cubic nature of the particles. In addition, antibacterial activity against Escherichia coli (Gram-negative bacteria) and Bacillus subtilis (Gram-positive bacteria) was evaluated with different concentrations of NiFe 2 O 4 /NG/cellulose composite (0-50 μg/mL). Inhibitory activity increased with increasing concentrations of NiFe 2 O 4 /NG/cellulose. The composite's inhibitory activity was slightly higher in E. coli than in B. subtilis due to the differing nature of their cell wall structures. Overall, the chemically synthesized NiFe 2 O 4 /NG/cellulose composite has the potential as an efficient antibacterial agent for controlling the growth of pathogenic bacteria.

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Optical and dielectric properties of NiFe2O4 nanoparticles under different synthesized temperature

Cited by 44 publications

References 28 publications

THE STUDY OF OPTICAL PROPERTIES OF MgxN1-xFe2O4/SiO2 NANOCOMPOSITE(x=0; 0.25; 0.5; 0.75; 1.0) AGAINST THE METHYLENE BLUE PHOTODEGRADATION

THE STUDY OF OPTICAL PROPERTIES OF MgxN1-xFe2O4/SiO2 NANOCOMPOSITE(x=0; 0.25; 0.5; 0.75; 1.0) AGAINST THE METHYLENE BLUE PHOTODEGRADATION

Nanocrystalline-modified nickel ferrite films: an effective sensor for industrial and environmental gas pollutant detection

Chemical synthesis of NiFe₂O₄/NG/cellulose nanocomposite and its antibacterial potential against bacterial pathogens

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Optical and dielectric properties of NiFe2O4 nanoparticles under different synthesized temperature

Cited by 44 publications

References 28 publications

THE STUDY OF OPTICAL PROPERTIES OF MgxN1-xFe2O4/SiO2 NANOCOMPOSITE(x=0; 0.25; 0.5; 0.75; 1.0) AGAINST THE METHYLENE BLUE PHOTODEGRADATION

THE STUDY OF OPTICAL PROPERTIES OF MgxN1-xFe2O4/SiO2 NANOCOMPOSITE(x=0; 0.25; 0.5; 0.75; 1.0) AGAINST THE METHYLENE BLUE PHOTODEGRADATION

Nanocrystalline-modified nickel ferrite films: an effective sensor for industrial and environmental gas pollutant detection

Chemical synthesis of NiFe2O4/NG/cellulose nanocomposite and its antibacterial potential against bacterial pathogens

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Chemical synthesis of NiFe₂O₄/NG/cellulose nanocomposite and its antibacterial potential against bacterial pathogens