scholarly journals Evaluation of Antioxidant and Cytotoxicity Activities of Copper Ferrite (CuFe2O4) and Zinc Ferrite (ZnFe2O4) Nanoparticles Synthesized by Sol-Gel Self-Combustion Method

2016 ◽  
Vol 6 (9) ◽  
pp. 184 ◽  
Author(s):  
Samikannu Kanagesan ◽  
Mansor Hashim ◽  
Sidek AB Aziz ◽  
Ismayadi Ismail ◽  
Subramani Tamilselvan ◽  
...  
Keyword(s):  
Zinc Ferrite ◽  
Sol Gel ◽  
Combustion Method ◽  
Copper Ferrite ◽  
Znfe2o4 Nanoparticles ◽  
Cytotoxicity Activities

scholarly journals Efficient Removal of Levofloxacin by Activated Persulfate with Magnetic CuFe2O4/MMT-k10 Nanocomposite: Characterization, Response Surface Methodology, and Degradation Mechanism

Water ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 3583
Author(s):  
Junying Yang ◽  
Minye Huang ◽  
Shengsen Wang ◽  
Xiaoyun Mao ◽  
Yueming Hu ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Response Surface Methodology ◽  
Response Surface ◽  
Photoelectron Spectroscopy ◽  
Degradation Mechanism ◽  
Sol Gel ◽  
Combustion Method ◽  
Copper Ferrite ◽  
X Ray ◽  
Rsm Model

In this study, a magnetic copper ferrite/montmorillonite-k10 nanocomposite (CuFe2O4/MMT-k10) was successfully fabricated by a simple sol-gel combustion method and was characterised by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), the Brunner–Emmett–Teller (BET) method, vibrating sample magnetometer (VSM), and X-ray photoelectron spectroscopy (XPS). For levofloxacin (LVF) degradation, CuFe2O4/MMT-k10 was utilized to activate persulfate (PS). Due to the relative high adsorption capacity of CuFe2O4/MMT-k10, the adsorption feature was considered an enhancement of LVF degradation. In addition, the response surface methodology (RSM) model was established with the parameters of pH, temperature, PS dosage, and CuFe2O4/MMT-k10 dosage as the independent variables to obtain the optimal response for LVF degradation. In cycle experiments, we identified the good stability and reusability of CuFe2O4/MMT-k10. We proposed a potential mechanism of CuFe2O4/MMT-k10 activating PS through free radical quenching tests and XPS analysis. These results reveal that CuFe2O4/MMT-k10 nanocomposite could activate the persulfate, which is an efficient technique for LVF degradation in water.

scholarly journals The influence of the chelating/combustion agents on the structure and magnetic properties of zinc ferrite

2012 ◽  
Vol 10 (6) ◽  
pp. 1799-1807 ◽  
Author(s):  
Tamara Slatineanu ◽  
Eliano Diana ◽  
Valentin Nica ◽  
Victor Oancea ◽  
Ovidiu Caltun ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Zinc Ferrite ◽  
Structural Parameters ◽  
Sol Gel ◽  
Magnetic Behavior ◽  
Combustion Method ◽  
Structural Features ◽  
Lattice Parameter ◽  
Zn Ferrite ◽  
Auto Combustion

AbstractThe present study is reporting the influence of the chelating/combustion agents on the magnetic properties of Zn ferrite. Six chelating/combustion agents, citric acid, egg white, tartaric acid, glycine, glucose and urea, were used to obtain monophase zinc nanoferrite via a sol-gel auto-combustion method. The samples were subjected to a comparative study of structural features and magnetic properties by means of infrared spectroscopy, X-ray diffractometry, scanning electron microscopy and vibrating sample magnetometry. Significant influence of fuel and combustion mode was observed in the magnetic behavior of as-obtained samples. Values of the structural parameters were discovered to vary as a function of fuel choice, and to obtain crystallite size between 38 and 62 nm, inversion degree between 0.239 and 0.807, lattice parameter between 8.4125 and 8.4432 Å. The optimization of sol-gel method synthesis of zinc ferrite nanoparticles by chosing the appropriate fuel is providing structural and magnetic properties of zinc nanoferrite as potential materials to be used in biomedical applications.

Magnetic Properties of ZnFe2O4 Nanoparticles Synthesized by Starch-Assisted Sol–Gel Auto-combustion Method

2014 ◽  
Vol 28 (4) ◽  
pp. 1417-1423 ◽  
Author(s):  
Raghvendra Singh Yadav ◽  
Jaromir Havlica ◽  
Ivo Kuřitka ◽  
Zuzana Kozakova ◽  
Martin Palou ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Sol Gel ◽  
Combustion Method ◽  
Auto Combustion ◽  
Znfe2o4 Nanoparticles

Study of Sol-Gel Auto-Combustion Method Prepare Ni0.6-xZn0.4MgxFe2O4

2012 ◽  
Vol 463-464 ◽  
pp. 1052-1056
Author(s):  
Ai Xiang Zeng ◽  
Jun Yuan
Keyword(s):  
Crystal Structure ◽  
Zinc Ferrite ◽  
Single Phase ◽  
Sol Gel ◽  
Combustion Method ◽  
X Ray Diffraction ◽  
X Ray ◽  
Nickel Zinc ◽  
Auto Combustion ◽  
Scanning Electron

Ni0.6-xZn0.4MgxFe2O4were synthesized by sol-gel auto-combustion method with Zn(NO3.) 2 •6H2O. , Ni(NO3.) )2•6H2O. , Mg(NO3.) )2•6H2O. , Fe(NO3.) )3•9H2O. , COOO2. and NH3•H2O. X-ray diffraction (XRD) analysises show that the sample is single phase and the doping of magnesium makes no difference to nickel-zinc ferrite’s crystal structure; nickel-zinc ferrite has formed after auto-combustion. Scanning electron microscope analysises show that after sintered the sample’s size is more even and the doping of magnesium makes the size smaller and more even too.

scholarly journals Development of Nickel Doped Zinc Ferrite Nanocomposites as Magnetically Recoverable Catalytic Material for The Synthesis of Biphenyl Methane

2019 ◽  
pp. 65-70
Author(s):  
Divya S. Nair ◽  
Dileep P S
Keyword(s):  
Zinc Ferrite ◽  
Sol Gel ◽  
Combustion Method ◽  
Gelling Agent ◽  
Distribution Profile ◽  
Remarkable Change ◽  
Nickel Doping ◽  
X Ray ◽  
Auto Combustion ◽  
Catalytic Material

Magnetically active nickel doped zinc ferrite nanoparticles with chemical composition NixZn1-xFe2O4 (x- 0.0, 0.25, 0.5, 0.75 and 1.0) were successfully synthesized by sol-gel auto-combustion method using high purity metal nitrates and ethylene glycol as gelling agent. The prepared samples were characterized by X-ray Diffraction (XRD), Transmission Electron Microscopy (TEM), X-ray Fluorescence (XRF) and Fourier Transform Infra-Red spectral (FTIR) analyses. TEM images and particle size distribution profile reveals the agglomeration tendency during nickel doping suggest the magnetic nature of particles. The remarkable change in the magnetic behaviour of nickel doped zinc ferrite samples provide an easy recovery and regeneration of the material and thus making an excellent candidate for benzylation reaction without any remarkable fall in the catalytic performance for repeated cycles.

scholarly journals Synthesis, Characterization and Electrical Properties of ZnFe2O4 Nanoparticles

2021 ◽  
Vol 7 (2) ◽  
pp. 946-948
Author(s):  
Md Ashfaq Hussain ◽  
S Sindhu ◽  
B Raghunanda ◽  
S. Molakeri Ajai Kumar
Keyword(s):  
Ac Conductivity ◽  
Zinc Ferrite ◽  
Size Range ◽  
Combustion Method ◽  
Dc Conductivity ◽  
Temperature Dependent ◽  
Particle Size Range ◽  
Ft Ir ◽  
Znfe2o4 Nanoparticles ◽  
Increasing Temperature

Zinc ferrite (ZnFe2O4) nanoparticles were prepared by combustion method. The FT-IR, XRD and SEM with EDS were used to characterize the prepared sample. The characterization results confirm the successful synthesis of ZnFe2O4 nanoparticles with the particle size range of 24 – 30 nm. The temperature dependent DC conductivity of the sample has been studied in the temperature range 30-175 °C and AC conductivity was investigated between the frequencies of 10 Hz and 10 MHz. DC conductivity of the sample was increased while increasing temperature and AC conductivity was increased as the frequency increased.

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