Effects of Mn, Cu doping concentration to the properties of magnetic nanoparticles and arsenic adsorption capacity in wastewater

Thi, Tran Minh; Trang, Nguyễn Thị Huyền; Anh, Nguyễn Thị Vân

doi:10.1016/j.apsusc.2015.02.132

Cited by 43 publications

(26 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…higher Ms and lower Mr and H Ci values as compared with those reported in the literature i.e. Sm 3+ , Eu 3+ , Gd 3+ , Cu 2+ and Mn 2+ doped IONPs [54][55][56][57] . Furthermore, these magnetic data are comparable with those of undoped IONPs electro-synthesized at a similar electrochemical condition in our previous works.…”

Section: Structural and Morphological Characterizationscontrasting

confidence: 44%

“…It is worth noting that, compared to reflections of undoped sample, small shifts in all reflections of doped sample were observed in Fig 2. These changes are due to the larger ionic radius of Y 3+ cations toward Fe 3+ cations (i.e. 92 pm vs. 60pm) [54][55][56][57] . From these results, it is stated that Y 3+ cations are located in some octahedral and/or tetrahedral sites owing to the Fe 3+ cations in the magnetite crystal structure.…”

Section: Electrochemical Testsmentioning

confidence: 99%

See 1 more Smart Citation

Enhancing the Supercapacitive and Superparamagnetic Performances of Iron Oxide Nanoparticles through Yttrium Cations Electro-chemical Doping

et al. 2018

View full text Add to dashboard Cite

A one-pot electrosynthesis platform is reported for fabrication of Y 3+ doped iron oxide nanoparticles (Y-IONPs). In this procedure, Y-IONPs are electro-deposited from an additive-free aqueous solution of iron(III) nitrate, iron(II) chloride and yttrium chloride. The analysis data provided by X-ray diffraction (XRD), field emission electron microscopy (FE-SEM) and energy-dispersive X-ray (EDX) confirmed that the deposited Y-IONPs sample is composed of magnetite nanoparticles (size≈20nm) doped with about 10wt% Y 3+ cations. The performance of the prepared Y-IONPs as supercapacitor electrode material was studied using cyclic voltammetry (CV) and galvanostat charge-discharge (GCD) tests. The obtained electrochemical data showed that Y-IONPs provide SCs as high as 190.3 and 138.9 F g −1 at the discharge loads of 0.25 and 1 A g −1 , respectively, and capacity retentions of 95.9% and 88.5% after 2000 GCD cycling. Furthermore, the results of vibrating sample magnetometer measurements confirmed better superparamagnetic behavior of Y-IONPs (Mr=0.32 emu g-1 and H Ci = 6.31 G) as compared with pure IONPs (Mr=0.95 emu g-1 and H Ci = 14.62 G) resulting from their lower Mr and Hci values. Based on the obtained results, the developed electro-synthesis method was introduced as a facile procedure for the preparation of high performance metal ion doped magnetite nanoparticles.

show abstract

Section: Structural and Morphological Characterizationscontrasting

confidence: 44%

Section: Electrochemical Testsmentioning

confidence: 99%

Enhancing the Supercapacitive and Superparamagnetic Performances of Iron Oxide Nanoparticles through Yttrium Cations Electro-chemical Doping

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Manganese ferrite nanoparticles with spinel structure are important for technological applications owing to their soft magnetic properties. They are widely used for microwave, inductance, magnetic recording media, electronic devices, magnetic storage devices, magnetic contrast and agent applications due to its high electrical resistance and high magnetic permeability [18][19][20][21][22][23]. As a potential member of contrast agents in Magnetic Resonance Imaging (MRI), the superparamagnetic manganese ferrite (MnFe 2 O 4 ) NPs have been found to have a very large relaxivity and high magnetization owing to their large magnetic spin magnitude [24,25].…”

Section: Introductionmentioning

confidence: 99%

Magneto-optical properties of Mn3+ substituted Fe3O4 nanoparticles

Güner

Amir

Geleri

et al. 2015

Ceramics International

View full text Add to dashboard Cite

“…The doping materials present the satisfying properties for lots of advanced applications such as battery 9 , capacitance 10 , electronic device 11 , catalysis 12 , etc. Lots of these properties and applications recently show a close relation with magnetic nanoparticles 3 , 6 , 13 – 15 , which requires the good magnetism of materials. Large magnetization, suitable particle size, and good dispersibility of the magnetic nanoparticles are desirable for the magnetic labels of biodetection 16 .…”

Section: Introductionmentioning

confidence: 99%

Investigation on the structures and magnetic properties of carbon or nitrogen doped cobalt ferrite nanoparticles

Cao

Pan

et al. 2018

Sci Rep

View full text Add to dashboard Cite

Carbon or nitrogen doped cobalt ferrite nanoparticles were synthesized in the air by a facile calcination process. X-ray diffraction, mapping, X-ray photoelectron spectroscopy, and mössbauer spectra results indicate that the nonmetal elements as the interstitial one are doped into cobalt ferrite nanoparticles. The morphologies of doped cobalt ferrite nanoparticles change from near-spherical to irregular cubelike shapes gradually with the increased carbon or nitrogen concentration, and their particles sizes also increase more than 200 nm. Furthermore, the saturation magnetization of carbon doped cobalt ferrite is improved. Although the saturation magnetization of N-doped cobalt ferrite is not enhanced obviously due to the involved hematite, they also do not drop drastically. The results reveal an approach to synthesize large scale ferrite nanoparticles, and improve the magnetic properties of ferrite nanoparticles, and also provide the potential candidates to synthesis co-doped functional magnetic materials.

show abstract

Effects of Mn, Cu doping concentration to the properties of magnetic nanoparticles and arsenic adsorption capacity in wastewater

Cited by 43 publications

References 26 publications

Enhancing the Supercapacitive and Superparamagnetic Performances of Iron Oxide Nanoparticles through Yttrium Cations Electro-chemical Doping

Enhancing the Supercapacitive and Superparamagnetic Performances of Iron Oxide Nanoparticles through Yttrium Cations Electro-chemical Doping

Magneto-optical properties of Mn3+ substituted Fe3O4 nanoparticles

Investigation on the structures and magnetic properties of carbon or nitrogen doped cobalt ferrite nanoparticles

Contact Info

Product

Resources

About