Size controlled preparation of Fe–B–P submicrometre particles and magnetic performance

Yao, Chuanhao; Zhang, Y. H.; Chen, J.; Bao, Daxin; Li, S.; Qin, Gaowu

doi:10.1179/1432891714z.000000000755

Cited by 8 publications

(2 citation statements)

References 11 publications

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“…After the dosage of CMC, Na 2 S titration speed is the second influential factor in the particle size [28][29][30]. However, it had a negligible effect on the hydrodynamic diameters of the nanoparticles, when adjusting the titration speed from 0.01 to 0.15 mL/s as shown in Figure 2 Our finding shows that the optimal synthesis conditions were CMC dosage at 0.15 wt.%, oscillation rate at 250 rpm, titration speed at 0.05 mL/s, and Na 2 S concentration at 0.0426 M. Under the optimal conditions, FeS nanoparticles were synthesized, characterized, and observed to check their long-term stability.…”

Section: Orthogonal Array Design Of Fes Nanoparticles Synthesismentioning

confidence: 99%

Optimized Synthesis of FeS Nanoparticles with a High Cr(VI) Removal Capability

Liu

Wenyan

Wang

et al. 2016

Journal of Nanomaterials

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FeS nanoparticles were synthesized using chemical precipitation method involving sulfide and ferrous solutions. Effects of important synthesis parameters including stabilizer, time taken for titration, horizontal oscillation speed, and initial salt concentration on the size of synthesized FeS nanoparticles were investigated by Orthogonal Array design. Increasing the CMC dosage significantly made the hydrodynamic diameter decrease between 0.05 wt.% and 0.15 wt.% while Na2S titration, oscillation rate, and Na2S concentration did not show significant influence on the hydrodynamic diameter of FeS nanoparticles. The synthesized FeS nanoparticles were characterized by using XRD (X-ray diffraction), TEM (transmission electron microscopy), and XPS (X-ray photoelectron spectroscopy). The as-synthesized FeS nanoparticles had an average size of 25 ± 10 nm and had a better long-term stability after storage for 150 days compared to bare FeS particles. Because of the optimized process parameters, the synthesized FeS nanoparticles had a higher Cr(VI) removal capacity of 683 mg per gram of FeS in comparison to the previously reported cases, and up to 92.48% Cr(VI) was removed from aqueous solutions. The small size, special surface property, and high reactivity make the synthesized FeS nanoparticles a promising tool for the remediation of Cr(VI) contaminated soil and groundwater.

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Section: Orthogonal Array Design Of Fes Nanoparticles Synthesismentioning

confidence: 99%

Optimized Synthesis of FeS Nanoparticles with a High Cr(VI) Removal Capability

Liu

Wenyan

Wang

et al. 2016

Journal of Nanomaterials

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“…The chains exhibit low loss characteristics at high frequencies up to a few GHz. In our previous work, Fe-B-P particles have been successfully prepared and some valuable results have been achieved [8][9][10]. The synthetic composite of Fe-B-P chains by Yao cheng et al [8] filled with 20 vol.% (Ni0.6Zn0.4)Fe2O4 nanoparticles exhibits the highest intrinsic permeability(142).…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Amorphous Fe-B-P Ultrafine Particles

Zhang

Wang

Yao

et al. 2016

MSF

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Soft magnetic Fe-B-P ultrafine particles with amorphous structure were prepared by aqueous reduction method with variable pH values. The microstructure, compositions and the soft magnetic properties of Fe-B-P submicron particles were investigated by using field emission scanning electron microscope (FE-SEM), X-Ray Diffraction (XRD), mössbauer spectrum (MS), inductively coupled plasma atomic emission spectroscopy (ICP-AES), vibrating sample magnetometer (VSM). The results showed that a series of Fe-B-P amorphous particles with the average particle size of 0.26~0.42 μm were obtained depending on the pH value of solution. As pH value increased, the contents of B and P increased, and the specific saturation magnetization of the Fe-B-P submicron particles decreased. Some electrons, transferred from p-shell of B atoms and P atoms to 3d-shell of Fe atom, resulted in the decrease of the number of unpaired electron, which in turn led to reduction of the average hyperfine magnetic field of the Fe-B-P particles and the decrease of the magnetic torque of Fe atoms. The relation between hyperfine magnetic field (Hhf) and the specific saturation magnetization was in accord with the Marshall’s equation. At the same time, the enhancement of the shielding effect on 4s electron orbital, i.e., the density of 4s electron reduced, leading to the increase of Isomer Shift.

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Mössbauer spectroscopy studies on the particle size distribution effect of Fe–B–P amorphous alloy on the microwave absorption properties

Zhang

et al. 2020

NUCL SCI TECH

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Size controlled preparation of Fe–B–P submicrometre particles and magnetic performance

Cited by 8 publications

References 11 publications

Optimized Synthesis of FeS Nanoparticles with a High Cr(VI) Removal Capability

Optimized Synthesis of FeS Nanoparticles with a High Cr(VI) Removal Capability

Preparation and Characterization of Amorphous Fe-B-P Ultrafine Particles

Mössbauer spectroscopy studies on the particle size distribution effect of Fe–B–P amorphous alloy on the microwave absorption properties

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