The Study of Co–Ni-Mn Ferrites for the Catalytic Decomposition of 4-Nitrophenol

Frolovа, Liliya; Хмеленко, О. В.

doi:10.1007/s10562-020-03419-1

Cited by 9 publications

(2 citation statements)

References 27 publications

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“…Photocatalytic properties of spinel ferrite nanoparticles were investigated using three different kinetic models namely zero-order, first-order and second order given by equations 1, 2 and 3 [20][21][22].…”

Section: Photocatalytic Activity Measurementsmentioning

confidence: 99%

Structural, Optical, Magnetic, Photocatalytic Activity and Related Biological Effects of CoFe2O4 Ferrite Nanoparticles

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et al. 2021

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The synthesis of magnetic nano-size spinel ferrites has become an important area of research, due to their several potential applications. In this work, CoFe2O4 nanoparticles were synthesized by the co-precipitation method. Structural, magnetic and photocatalytic properties of cobalt ferrites were analyzed based on their chemical composition considering their biological properties. Structural and morphological properties were investigated by X-ray diffraction analysis (XRD) and SEM respectively. Lattice parameters and cell volumes were calculated from XRD data. SEM images revealed uniform surface morphology and spherical shape of nanoparticles. Magnetization measurements were measured by using Lake Shore 7304 model Vibrating Sample Magnetometer. In hemolytic activity tests, formation of a precipitate with a characteristic black color provided an explicit evidence to the formation of heme-iron complexes. Undesirable hemolytic effect of CoFe2O4 nanoparticles on human erythrocytes at both concentrations was attributed to the comparatively high amount of reactive oxygen species formed by CoFe2O4 nanoparticles. The theoretical concentration Co (theory) obtained by second-order model (0.82 mg/L) fit with the experimental value of Co (experimental) (0.95 mg/L) well in photocatalytic activity tests.

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Section: Photocatalytic Activity Measurementsmentioning

confidence: 99%

Structural, Optical, Magnetic, Photocatalytic Activity and Related Biological Effects of CoFe2O4 Ferrite Nanoparticles

Yalçın

Özçeli̇k

İçi̇n

et al. 2021

Preprint

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show abstract

“…Among the many methods used to remove 4-NP from wastewater are adsorption [10], electrochemistry [11,12] and homogeneous and heterogeneous catalytic hydrogenation transfer [13,14]. It is noteworthy that many investigations concerning the degradation of 4-NP by cobalt species are reported in the literature [15][16][17]. These are concerned with the "cobalt ferrite core and graphitic shell (CoFe 2 O 4 /MGNC)" system using stoichiometric amounts of hydrogen peroxide for the degradation of an aqueous solution of 4-NP [15].…”

Section: Introductionmentioning

confidence: 99%