Nickel Zinc Ferrite Nanoparticles Research Articles

Effect of cation distribution on the structural and dielectric properties of $${\mathrm{N}\mathrm{i}}_{0.5-x}{\mathrm{C}\mathrm{o}}_{x}{\mathrm{Z}\mathrm{n}}_{0.5}{\mathrm{F}\mathrm{e}}_{2}{\mathrm{O}}_{4}$$ (0.0 ≤ x ≤ 0.5) ferrites

Cobalt-substituted nickel–zinc ferrite nanoparticles, i.e., $${\mathrm{N}\mathrm{i}}_{0.5-x}{\mathrm{C}\mathrm{o}}_{\mathrm{x}}{\mathrm{Z}\mathrm{n}}_{0.5}{\mathrm{F}\mathrm{e}}_{2}{\mathrm{O}}_{4}$$ (0.0 ≤ x ≤ 0.5) were prepared by the sol–gel method. X-ray diffraction patterns revealed that the prepared samples crystallized in cubic spinel structure, whereas the scanning electron microscopy study exhibited a change in the morphology of grains due to Co2+ substitution. 57Fe Mossbauer measurements suggested that the presence of iron is only in the Fe3+ oxidation state which is randomly distributed over the tetrahedral and octahedral sites. However, the fraction of Fe3+ ions present at the octahedral site strongly depends on the unusual site preference of substituted Co2+ ions for the tetrahedral site. Thus, the cationic distribution between both the sites altered with increasing Co2+ substitution. Significant enhancement in the resistive properties is found with increasing Co2+ substitution and the obtained values are ~ 104 times higher than that reported for their bulk counterparts. This improvement in the resistive properties is elucidated based on changes in the microstructure and cation redistributions due to Co2+ substitution. Here, we report that the colossal resistivity (3.82 × 1010 Ω cm) and diminished tangent loss (~ 0.01) for the sample with x = 0.2 make this composition interesting for high-frequency applications.

Ni0.5Zn0.5Fe2O4 nanoparticles-decorated poly (vinyl alcohol) nanofiber as resonance light scattering probe for determination of sunitinib in serum samples

Nickel zinc ferrite (Ni0.5Zn0.5Fe2O4) nanoparticles decorated poly (vinyl alcohol) was constructed by the electrospinning method and used for determining the sunitinib amount in real sample. In this study, resonance light scattering (RLS) technique was used for studying the interaction of nanofibers with sunitinib. Similar Ni0.5Zn0.5Fe2O4 nanoparticles-decorated nanofibers with average diameter of 200 nm and length up to several millimeters were prepared. The morphology and microstructure of the as prepared Ni 0.5Zn 0.5Fe2O4 nanoparticles-decorated nanofibers were studied in details. The nanofibers were characterized by energy dispersive X-ray spectroscopy, scanning electron microscopy, and transmission electron microscopy techniques. The nanofibers are formed through assembling magnetic nanoparticles with poly (vinyl alcohol) as the structure-directing template. Under the optimal conditions, the linear dynamic range and RSD were 5.0 × 10−3-10.0 mg L−1 and 1.62% (n = 3), respectively. A limit of detection of 1.0 × 10−3 mg L−1 sunitinib was obtained from this method. The obtained results showed successful application of the method for the analysis of sunitinib in real samples.

Catalytic performance of NiFe2O4 and Ni0.3Zn0.7Fe2O4 magnetic nanoparticles during biodiesel production

In this study, catalytic performance of nanoferrites NiFe2O4 and Ni0.3Zn0.7Fe2O4 is reported. Nickel–ferrite and mixed nickel–zinc ferrite were successfully synthesized by combustion reaction using a conical reactor with production of 10 g per batch. Crystallinity and purity or quantitative analysis of the catalyst were checked by using X-ray diffraction and energy dispersive X-ray analysis. Surface chemistry was examined via Fourier transform infrared (FTIR) analysis; N2 physisorption at 77 K was conducted to obtain textural properties of the catalyst; a thermogravimetric analysis, a scanning electron microscope and a transmission electron microscopy were used to check the thermal stability and morphology of the catalyst, respectively. The catalysts were used to convert soybean oil into biodiesel in a batch mode and the reaction mixture was analyzed using a pre-calibrated gas chromatograph (GC). The presence of a single-phase spinel structure in the synthesized nanoparticles was confirmed by the XRD results. The Ni0.3Zn0.7Fe2O4 had a lower surface area value of 71.5 m2g−1 and higher saturation magnetization value of 31.50 emu/g than sample NiFe2O4 which had 87.6 m2g−1 and 17.85 emu/g, respectively. Biodiesel yield of 94% was obtained with Ni0.3Zn0.7Fe2O4 and 49% was obtained with NiFe2O4. Better performance of Ni0.3Zn0.7Fe2O4 when compared to that of NiFe2O4 could be attributed to higher acidity of the former. Findings from this study suggest that the development of nickel-zinc ferrite nanoparticles as magnetic heterogeneous catalysts could provide an environmentally friendly platform for biodiesel production.

Characterization of ferrite magnetic nanoparticle modified polymeric composites by modeling

Abstract This study aims to develop a computational method for characterizing the magnetic and dielectric properties of ferrite nanoparticle modified polymeric nanocomposites for mobile device applications. The spinel structured nickel zinc ferrite (Ni0.5Zn0.5Fe2O4) nanoparticles were synthesized using chemical thermal treatment. The nanocomposites were fabricated using epoxy matrix dispersed with the nanoparticles through ultrasonic agitation mixing. The effects of the ferrite nanoparticles’ shape, concentration, and distribution on the magneto-dielectric properties of the nanocomposites were systematically investigated by computer modeling. The isothermal magnetization curves of the nanocomposites have been experimentally measured for validating the numerical prediction. The effective relative permittivity and permeability of the nanocomposites predicted by numerical method were compared with the results of analytical methods (classical mixing rules of Maxwell-Garnett rule and Bruggeman rule).

The microstructure and magnetic behavior of spark plasma sintered iron/nickel zinc ferrite nanocomposite synthesized by the complex sol-gel method

In this study, a 2.7 wt% (Fe)/97.3 wt% (Zn0.3Ni0.7Fe2O4) nanocomposite (45–100 nm) was synthesized uisng the non-alkoxide complex sol-gel method by controlling the amount of Triethanolamine (TEA) and the annealing temperature. Various instuments including the simultaneous thermal analyzer (STA), Fourier transform infrared spectrometer, X-ray diffraction, scanning electron microscope equipped with X-ray dispersive spectroscopy, and vibrating sample magnetometer were used to characterize the samples. The STA results showed that the gel was converted from the amorphous phase to a crystalline one at 750 °C. The XRD pattern at the temperature of 750 °C also confirmed the presence of a spinel ferrite structure, α- Fe2O3 and Fe phases. By increasing the annealing temperature to 1100 °C, α- Fe2O3 as an impurity phase was eliminated, but the iron phase (formed through the reduction of the partial Fe3+ ions by TEA molecules as a sacrificial reducing agent) was still present. According to the VSM analysis of the SPSed sample, the exchange coupling between the iron phase and nickel zinc ferrite nanoparticles significantly improved the saturation magnetization of the spinel ferrite from 66.0 emu/g to 82.9 emu/g.

Role of sonication time on thermal behaviour and dynamic mechanical analysis of NiZn ferrite incorporated PLA/LNR nanocomposite

The investigation on thermal properties of polylactic acid/liquid natural rubber (PLA/LNR) blend embedded with nickel zinc (NiZn) ferrite nanoparticles at various loading (1–5 wt%) and treated with different ultrasonication time (1–2 h) is the main core of this study. The novel NiZn nanocomposite based on the matrix of PLA:LNR with a ratio of 90:10 was fabricated via melt blending technique with the aids of ultrasonication. The effects of nanofiller loading and ultrasonic treatment on nanocomposite were examined by scanning electron microscopy, differential scanning calorimetry and dynamic mechanical analyser. The results revealed that the thermal properties of PLA/LNR matrix have improved with incorporation of nanoparticles in which improvement was observed until an optimum level at 4 wt% NiZn ferrite within 1 h of ultrasonic treatment. The optimum ultrasonication for 1 h is believed to be sufficient to promote a good dispersion of NiZn ferrite nanoparticles within the PLA/LNR and in order to enhance the thermal stability, which makes it potentially to be used in electronic applications.

Reduced power consumption in nickel zinc ferrite nanoparticles doped blue phase chiral nematic liquid crystal devices

The effect of nickel zinc ferrite (NZFO (Ni0.5Zn0.5Fe2O4)) nanoparticles in reducing the threshold voltage of blue phase (BP) in chiral nematic liquid crystal (CNLC) was studied at room temperature. Due to low concentration selected for doping, the structure of CNLC and the temperature window of BP is maintained in entire LC range. The significant reduction in threshold voltage (5.5V) for Freedericksz transition is recorded for doped CNLC. Strong interaction between guest NZFO nanoparticles and host, aligns the CNLC molecule in an ordered structure to considerably enhance dielectric permittivity and anisotropy of CNLC doped with 0.05wt% NZFO nanoparticles to reduce threshold voltage. The presence of NZFO nanoparticles reduces the impurity ions and associated free energy in CNLC, which lead to the observed decrease in dielectric loss and elastic constant, respectively, to contribute towards reduction in driving power (by ~50%) of BP based displays. The improved photoluminescence intensity of CNLC, in the presence of NZFO, promises as a potential material for optoelectronic devices.

Z-scheme recyclable photocatalysts based on flower-like nickel zinc ferrite nanoparticles/ZnO nanorods: Enhanced activity under UV and visible irradiation

Hybrid photocatalysts with magnetism are important because of their advantage of being recyclable by a magnet. In this paper, we report the synthesis of magnetic flower-like nanocomposites based on ZnO nanorods and nickel zinc ferrite (NZF) nanoparticles using a hydrothermal method. The magnetic cores of NZF nanoparticles with diameter of 30–50 nm were used as the centers for the subsequent ZnO nanorods growth. ZnO nanorods grow from these magnetic cores to form scattered flower-like nanostructures, while their length is controlled by changing the heating time. These flower-like nanostructures have distinctive morphology with large surface-to-volume (S/V) ratio. When used as a photocatalyst, these hierarchical nanocomposites show high photocatalytic activity in the degradation of organic contaminates under ultraviolet (UV) and visible light irradiation. Their excellent photocatalysis attributes to the wide absorption range of NZF and the simple Z-scheme system between ZnO and NZF that enhances the charge separation efficiency. In addition, these nanocomposites present sufficient magnetization such that they can be rapidly separated from the solution by a magnet. These recyclable photocatalysts with high efficiency under UV and visible light are ideal for purifying organic contaminants.

Highly improved dielectric behaviour of ferronematic nanocomposite for display application

ABSTRACTWe report the investigation of influence of nickel zinc ferrite magnetic nanoparticles (NZFO (Ni0.5Zn0.5Fe2O4)) on phase transition, optical and dielectric properties in a nematic liquid crystal (NLC). The interaction of NZFO nanoparticles with NLC was confirmed by the formation of ferronematic droplets due to the transfer of magnetic orientational effect onto the underlying NLC matrix. The doping results in shift of nematic to isotropic transition to low-temperature region. An enhancement in the value of refractive index is observed in the nematic region after the addition of NZFO nanoparticles. The dielectric constant of NLC was remarkably enhanced by 10 times after doping, which is found to be maximum at 0.1 wt% concentration of NZFO nanoparticles. The decrease in the value of dissipation factor in low-frequency region shows that the magnetic nanoparticles are able to trap ionic impurities effectively. The obtained results suggest that the optimum amount of doping concentration is 0.1 wt% of NZFO nanoparticles in NLC due to high dielectric constant with low dissipation factor and high refractive index with high dispersive power at room temperature.

Folate-molecular encapsulator-tethered biocompatible polymer grafted with magnetic nanoparticles for augmented drug delivery

Magnetic ferrite nanoparticles (MNPs) coated with biocompatible polymers capable of drug loading and release are fascinating nanostructures for delivering anti-cancer drugs. Herein, we report the synthesis and characterization of a novel β-cyclodextrin-folate-tethered dextran polymer. Nickel–zinc ferrite nanoparticles are prepared and coated with the polymer to form a biocompatible hybrid magnetic nanocarrier. To establish the significance of folate unit of the polymer in anticancer activity, a similar derivatized polymer, i.e. β-cyclodextrin-dextran conjugate without folate tether is used for comparison. The size of the hybrid MNPs is ∼20 nm, which is a size suitable for cancer drug targeting. The polymer-coated magnetic nanocarriers are soft ferromagnets as suggested by their narrow magnetic hysteresis loops. The anticancer drug camptothecin (CPT) is loaded on the magnetic nanocarriers. The drug loading efficiency is observed to be above 92%. The nanocarriers show sustained in vitro drug release for above 45 h. The in vitro cytotoxicity studies reveal that the loaded CPT retains its potency in the nanocarrier and the folate-tethered nanocarrier shows better anticancer activity than the one which does not carry a folate unit. The magnetic nanocarrier is suitable for magnetic field-guided drug transport, enhanced drug loading and release and folate receptor-mediated endocytotic uptake of drugs by cancer cells.

Structural and elastic properties of nickel–zinc ferrite nano-particles doped with lithium

The X-ray and Fourier transform infrared (FTIR) spectroscopy are used to studying the structural and elastic properties of Ni-Zn ferrite doped lithium according to the chemical formula Ni1−xZnx−2yLiyFe2+yO4, where (0 ≤ x ≤ 0.5) and (y = 0, 0.01, 0.02, 0.03, and 0.04) which preparation by sol–gel method. Lattice constant (a), crystallite size, and cation distribution are deduced from XRD. FTIR measurement exhibits that two absorption bands (ν1 and ν2) around 400–800 cm−1 that confirm the existence of tetrahedral and octahedral sites of ferrite. Force constant, elastic wave velocity, bulk modulus, and young’s modulus also reported. The force constant for A-site is larger than for B-site which vary between (KA = 131.6–145.5 N/m) and (KB = 97.8–102.3 N/m) where can be found the values of elastic constant for nanoparticle is agreement with those of bulk material.

Investigation of structural, optical, magnetic and electrical properties of tungsten doped Ni[sbnd]Zn nano-ferrites

Tungsten substituted nickel-zinc ferrite nanoparticles with chemical composition of Ni0.5Zn0.5WxFe2-xO4 (x = 0.0, 0.2, 0.4, 0.6, 0.8 & 1.0) were successfully synthesized by a chemical co-precipitation method. The prepared ferrites were pre sintered at 850 °C and then annealed at 1000 °C in a muffle furnace for 3 h each. This sintered powder was inspected by X-ray diffraction (XRD), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), and vibrating sample magnetometer (VSM) to study the structural, optical, and magnetic properties. XRD measurement revealed the phase purity of all the nanoferrite samples with cubic spinel structure. The estimated crystallite size by X-ray line broadening is found in the range of 49–62 nm. FTIR spectra of all the samples have observed two prominent absorption bands in the range 400–700 cm−1 arising due to tetrahedral and octahedral stretching vibrations. Vibrating sample magnetometer experiments showed that the saturation magnetizations (MS) decreased with an increase in non-magnetic tungsten ion doping. The electrical resistivity of tungsten doped NiZn nano ferrites were examined extensively as a function of temperature. With an increase in tungsten composition, resistivity was found to decrease from 2.2 × 105 Ω cm to 1.9 × 105 Ω cm which indicates the semiconducting behavior of the ferrite samples. The activation energy also decreased from 0.0264 to 0.0221 eV at x = 0.0 to x = 1.0. These low coercive field tungsten doped NiZn ferrites are suitable for hyperthermia and sensor applications. These observations are explained in detail on the basis of various models and theories.

Magnetic heating of triethylene glycol (TREG)-coated zinc-doped nickel ferrite nanoparticles

Triethylene glycol (TREG)-coated nickel-zinc (Ni-Zn) ferrite nanoparticles were synthesized via the hydrothermal method and characterized for application to magnetic hyperthermia. Ni-Zn ferrite particles of Ni1−xZnxFe2O4 with three different zinc contents of x=0.2, 0.4, and 0.6 were formulated to investigate the structural and magnetic properties according to the zinc content. Transmission electron microscopy images revealed that the particles were spherical in shape and that the average diameters of the particles were 10.67, 13.02, and 18.73nm for zinc contents of 0.6, 0.4, and 0.2, respectively. Fourier transform infrared spectroscopy confirmed that the TREG was firmly coated on the surface of the particles. The saturation magnetization decreased with the increasing zinc content in the particles, which affected the heating ability of the particles in the alternating magnetic field. The heating ability of the Ni0.8Zn0.2Fe2O4 and Ni0.6Zn0.4Fe2O4 particles facilitated the aqueous solution of these particles to reach the target temperature of 42°C for magnetic hyperthermia, while an aqueous solution of Ni0.2Zn0.8Fe2O4 particles with a high particle concentration did not reach the target temperature. The high specific absorption rates of the Ni0.8Zn0.2Fe2O4 and Ni0.6Zn0.4Fe2O4 particles indicate that these particles are applicable to magnetic hyperthermia.

Thermal Condensation of Glycine and Alanine on Metal Ferrite Surface: Primitive Peptide Bond Formation Scenario.

The amino acid condensation reaction on a heterogeneous mineral surface has been regarded as one of the important pathways for peptide bond formation. Keeping this in view, we have studied the oligomerization of the simple amino acids, glycine and alanine, on nickel ferrite (NiFe2O4), cobalt ferrite (CoFe2O4), copper ferrite (CuFe2O4), zinc ferrite (ZnFe2O4), and manganese ferrite (MnFe2O4) nanoparticles surfaces, in the temperature range from 50–120 °C for 1–35 days, without applying any wetting/drying cycles. Among the metal ferrites tested for their catalytic activity, NiFe2O4 produced the highest yield of products by oligomerizing glycine to the trimer level and alanine to the dimer level, whereas MnFe2O4 was the least efficient catalyst, producing the lowest yield of products, as well as shorter oligomers of amino acids under the same set of experimental conditions. It produced primarily diketopiperazine (Ala) with a trace amount of alanine dimer from alanine condensation, while glycine was oligomerized to the dimer level. The trend in product formation is in accordance with the surface area of the minerals used. A temperature as low as 50 °C can even favor peptide bond formation in the present study, which is important in the sense that the condensation process is highly feasible without any sort of localized heat that may originate from volcanoes or hydrothermal vents. However, at a high temperature of 120 °C, anhydrides of glycine and alanine formation are favored, while the optimum temperature for the highest yield of product formation was found to be 90 °C.

The dendritic effect and magnetic permeability in dendron coated nickel and manganese zinc ferrite nanoparticles.

The collective magnetic properties of nanoparticle (NP) solid films are greatly affected by inter-particle dipole-dipole interactions and therefore the proximity of the neighboring particles. In this study, a series of dendritic ligands (generations 0 to 3, G0-G3) have been designed and used to cover the surface of magnetic NPs to control the spacings between the NP components in single lattices. The dendrons of different generations introduced here were based on the 2,2-bis(hydroxymethyl)propionic acid (Bis-MPA) scaffold and equipped with an appropriate surface binding group at one end and several fatty acid segments at the other extremity. The surface of the NPs was then modified by partial ligand exchange between the primary stabilizing surfactants and the new dendritic wedges. It was shown that this strategy permitted very precise tuning of inter-particle spacings in the range of 2.9-5.0 nm. As expected, the increase in the inter-particle spacings reduced the dipole-dipole interactions between magnetic NPs and therefore allowed changes in their magnetic permeability. The dendron size and inter-particle distance dependence was studied to reveal the dendritic effect and identify the optimal geometry and generation.

Synthesis, characterization and gas sensitivity investigation of Ni0.5Zn0.5Fe2O4 nanoparticles

Nickel zinc ferrite nanoparticles with diameters less than 20nm were synthesized by co-precipitation method. The synthesized nanoparticles were annealed at 500°C. Two types of samples (powder and disk) were prepared. The disk sample was prepared by pressing the powder sample. Magnetic and structural properties of the products were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and alternating gradient-force magnetometer (AGFM). The X-ray analysis shows that the formation of the synthesized nickel zinc ferrite is spinell. The average crystalline size for nickel zinc ferrite powder was found around 19nm (calculated by Debye-Scherer formula).The formation, size and the uniformity of the samples were determined by TEM. It was found that the size of nanoparticles should be around 18nm from the SEM image. AGFM diagrams shows that the magnetization of the powder sample at the 9kOe is 21.5emu/g that of disk sample is 33emu/g. Therefore, the magnetization was increased by pressing the nickel zinc ferrite nanoparticles. Sensor sensitivity of this disk ferrite is investigated in an isolated box. For this purpose, the samples are injected to this box and six gases (ethanol, methanol, chloroform, acetonitrile, acetone and methane) are exposed to the ferrite by a mechanical gate. The acetonitrile had the best sensitivity performance.

Effect of Mn/Co substitutions on the resistivity and dielectric properties of nickel–zinc ferrites

Nickel-zinc ferrite nanoparticles with suitable chemical modifications by Mn or Co substitutions for Zn as two systems (namely, Ni–Zn–Mn and Ni–Zn–Co) were synthesized by sol-gel autocombustion method. X-ray diffraction measurements on the synthesized nanoparticles confirm that the samples attain single phase cubic spinel structures only. The powders were then used to obtain pellets in desired dimensions by employing usual ceramic procedure for carrying out measurements of resistivity and dielectric properties. The variations of dc resistivity as a function of composition and temperature, and the corresponding variation of activation energies for both the systems are presented and discussed. Also, the results of dielectric constant as a function of substituent concentration, dielectric dispersion and dielectric loss tangent are discussed. Effect of Mn/Co substitutions in Ni–Zn ferrites and possible mechanisms responsible for variations in resistivity and dielectric properties of both the ferrite systems have been evolved independently. Also, comparison of the trends between the dielectric constant and the resistivity with substituents’ concentration and their inter-relation with conduction mechanisms has been thoroughly analyzed for both the ferrite systems.

Variation in magnetic and structural properties of Co-doped Ni–Zn ferrite nanoparticles: a different aspect

Cobalt-substituted nickel–zinc ferrite nanoparticles (Ni0.6−x Zn0.4Co x Fe2O4) (x = 0, 0.0165, 0.033, 0.264 and 0.528) have been synthesized and characterized with respect to their structural and magnetic properties. Exceptionally in spite of the reported literature where the saturation magnetization increases with Co doping that attributes to Co2+ ions distribution in octahedral sites, the saturation magnetization in our samples decreases by increasing Co contents as revealed by vibrating sample magnetometer measurements. To know the structural properties such as phase identification, measurement of crystallite size and other structural parameters, prepared samples have been performed by X-ray diffraction technique. The X-ray diffraction spectra measurements show that samples have single-phase spinel cubic structure at x = 0, 0.033, 0.264 and 0.528, and at x = 0.0165, there is partial formation of hematite phase. The uncommonly decreased saturation magnetization, variation in retentivity, coercivity and magneto-crystalline anisotropy and also variation in structural properties with Co doping are explained on the basis of Co2+ ions distribution in tetrahedral and octahedral sites in place of Ni2+ and Zn2+ ions having different magnetic moments and different ionic radii, respectively. Using transmission electron microscopy, the particles size has been calculated. The morphology and stoichiometry of prepared samples have been investigated by field emission scanning electron microscopy and energy-dispersive X-ray spectroscopy techniques, respectively. The structural and magnetic measurement results are well co-related with each other with respect to Co2+ ions doping and its distributions. The moderate saturation magnetization and low coercivity values of all samples show soft magnetic behavior and attribute the usefulness of these materials in magnetic recording devices.

Electrophoretic deposition of nickel zinc ferrite nanoparticles into microstructured patterns

Using DC electric fields, nickel-zinc ferrite (Ni0.5Zn0.5Fe2O4) nanoparticles (Dh =16.6 ± 3.6 nm) are electrophoretically deposited onto silicon substrates to form dense structures defined by photoresist molds. Parameters such as electric field, bath composition, and deposition time are tuned to produce films ranging in thickness from 177 to 805 nm. The deposited films exhibit soft magnetic properties with a saturation magnetization of 60 emu/g and a coercivity of 2.6 kA/m (33 Oe). Additionally, the influence of the photoresist mold on the deposit profile is studied, and patterned films with different shapes (lines, squares, circles, etc.) are demonstrated with feature sizes down to 5 μm.

Synthesis and Characterization of Nickel Zinc Ferrite Nanoparticles

In this research nickel zinc ferrite nanoparticles with composition of Ni1-xZnxFe2O4 (where x=0, 0.3, 0.7, 1) were synthesized by a sol-gel method at 600 °C for 5 hours. The structure of nanoparticles was studied using X-ray diffraction pattern. The lattice parameter of ferrite nanoparticles was calculated and indicates lattice constant of nanoparticles depend on zinc concentration. The crystallite size of nickel zinc nanoparticles was calculated by Debye–Scherrer equation and the crystallite sizes of nanoparticles decreased by increasing in x contents. Morphology of nanoparticles was observed and investigated using the scanning electron microscopy. The grain size of nickel zinc ferrite nanoparticles were in suitable agreement with the crystalline size calculated by X-ray diffraction results. Magnetic properties of nanoparticles were examined with vibration sample magnetometer. Hysteresis loops of nanoparticles reveal the super-paramagnetic behavior.