Preparation and characterization of iron oxide (Fe 3 O 4 ) nanoparticles coated with polyvinylpyrrolidone/polyethylenimine through a facile one-pot deposition route

Karimzadeh, Isa; Aghazadeh, Mustafa; Ganjali, Mohammad Reza; Doroudi, Taher; Kolivand, Pirhossein

doi:10.1016/j.jmmm.2017.02.048

Cited by 46 publications

(18 citation statements)

References 39 publications

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“…Figure 4 represents the FT-IR spectra of as-synthesized NPs after completing the required steps, and chemical compositions were determined by this analyze, which include SPIONs synthesis, MSN encapsulation, calcination, and functionalization. We have confirmed the formation of SPIONs by detecting the clear peaks at 579.54, and 1620.72 cm -1 , which are related to the stretching vibration of Fe-O [ 62 ]. The peaks at 1077.1 and 799.94 cm -1 are associated with Si-O bonding and are suggestive of the fact that SPIONs have been encapsulated with MSNs through the application of CTAB template [ 63 ].…”

Section: Resultsmentioning

confidence: 78%

Synthesis and characterization of amine-functionalized Fe3O4/Mesoporous Silica Nanoparticles (MSNs) as potential nanocarriers in drug delivery systems

et al. 2022

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Superparamagnetic Iron Oxide Nanoparticles (SPIONs) have shown great potential for being utilized in Nanocarriers (NCs) applications throughout the Drug Delivery System (DDS). However, there are several obstacles to make a practical magnetic NCs, such as low dispersity and high toxicity in the biological systems, and also low surface area for drug loading. In this work, magnetic NCs have been synthesized through a facile three-step process, first SPIONs were synthesized by the co-precipitation method, then decorated via mesoporous silica and finally the calcinated NCs functionalized with NH2 by a simple process in the ethanol solvent. The structure and morphology of the as-synthesized NCs have been characterized by the usage of different analyzing methods such as XRD, FTIR, TEM, FE-SEM, and TGA. Also, the magnetic properties have been investigated by the means of VSM throughout each step of the procedure. Lastly, we have applied the technique of N 2 adsorption-desorption to observe the surface area, pore size, and volume. Besides optimal magnetization of final nanoparticles (30 emu/gr), the as-synthesized NCs claimed the high surface area and small diameter, at 371 m 2 .g -1 and 70 nm, respectively. Moreover, the functionalized NCs have demonstrated well dispersity over a day in the PBS solution. As a result, the as-prepared nanocarrier able to overcome drug delivery obstacles and used as a potential nanocarrier owing to its small diameter, high surface area/ pore volume, optimal magnetization, and well dispersity in the biological condition.

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Section: Resultsmentioning

confidence: 78%

Synthesis and characterization of amine-functionalized Fe3O4/Mesoporous Silica Nanoparticles (MSNs) as potential nanocarriers in drug delivery systems

et al. 2022

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“…The variation of size observed in the AC@ Fe/3 catalyst (from 1 to 50 nm) could be the result of different growth conditions because of the higher impregnation rate of this catalyst. The increase in the impregnation rate could promote the polycondensation of iron nanoparticles as reported by Karimzadeh et al (2017). Clusters of nanoparticles are clearly highlighted in the AC@Fe/3 TEM images (at 200 nm scale).…”

Section: Characterization Of Ac and Heterogeneous Catalystsmentioning

confidence: 51%

Effectiveness of the dispersion of iron nanoparticles within micropores and mesopores of activated carbon for Rhodamine B removal in wastewater by the heterogeneous Fenton process

et al. 2019

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Iron-based nanoparticles were formed in the pores of a micro-and mesoporous activated carbon made from banana spike by the impregnation of iron sulfate at various ratios and further pyrolysis, in order to prepare three catalysts AC@Fe/1, AC@ Fe/2, AC@Fe/3 having iron mass contents of 1.6%, 2.2% and 3.3%, respectively. The pore size distributions, transmission electron microscope observations and X-ray photoelectron spectroscopy analyses have revealed that iron-based nanoparticles of 1-50 nm diameter, containing O and P, are located mainly in the supermicropores and mesopores of the activated carbon. Catalysts have been used to remove Rhodamine B in an aqueous solution by the heterogeneous Fenton process. AC@Fe/3 catalyst has allowed achieving 93% of solution discoloration compared to 87.4% for AC@Fe/2 and 78.5% for AC@Fe/1 after 180 min in batch reaction. The catalytic efficiency of AC@Fe/3 is attributed to the highest dispersion of the iron-based nanoparticles in the activated carbon porosity. The effects of hydrogen peroxide and initial dye concentration, pH, catalyst amount and temperature on the Rhodamine B removal kinetics catalyzed by AC@Fe/3 were studied. This catalyst showed remarkable performances of the Rhodamine B mineralization and possibility of recycling.

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“…Moreover, after coating with Fe 3 O 4 the appearance of a new peak at 630 cm -1 and the broadening of a band at 540 cm -1 can be attributed to vibration within the Fe 3 O 4 . These bands were attributed to Fe-O symmetric stretching vibrations in crystalline lattice (Silva et al 2013;Magnacca et al 2014;Ghasemi et al 2017;Karimzadeh et al 2017). Moreover, the positions of these bands are characteristic to magnetite and maghemite (Fu et al 2008;Wang et al 2010;Iyengar et al 2014).…”

Section: Xrd Resultsmentioning

confidence: 96%

Halloysite Composites with Fe₃O₄Particles: The Effect of Impregnation on the Removal of Aqueous Cd(II) And Pb(II)

Maziarz

Matusik

2017

Mineralogia

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In this study, halloysite-Fe3O4 composites were synthesized by a chemical-precipitation method to facilitate magnetic separation of the sorbents from aqueous solution. The research focused on the effect of Fe3O4 phase on the halloysite sorption properties. The X-ray diffraction (XRD) results confirmed successful deposition of Fe3O4 particles on a halloysite surface. They showed that the coating with Fe3O4 particles enhanced the halloysite adsorption affinity toward Cd(II) and Pb(II). The highest adsorption capacity was determined for the composites having 10% of the surface deposited with Fe3O4. In this case, the adsorption capacity for Cd(II) and Pb(II) was 33 and 112 mmol·kg -1 , respectively. The point of zero charge (pHPZC) and desorption results indicated that the removal mechanism of metals is mainly related to chemisorption involving reaction with hydroxyls of either halloysite or Fe3O4 phase. The ion exchange is of limited importance due to the low cation exchange capacity (CEC) of halloysite -Fe3O4 composites.

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Preparation and characterization of iron oxide (Fe 3 O 4 ) nanoparticles coated with polyvinylpyrrolidone/polyethylenimine through a facile one-pot deposition route

Cited by 46 publications

References 39 publications

Synthesis and characterization of amine-functionalized Fe3O4/Mesoporous Silica Nanoparticles (MSNs) as potential nanocarriers in drug delivery systems

Synthesis and characterization of amine-functionalized Fe3O4/Mesoporous Silica Nanoparticles (MSNs) as potential nanocarriers in drug delivery systems

Effectiveness of the dispersion of iron nanoparticles within micropores and mesopores of activated carbon for Rhodamine B removal in wastewater by the heterogeneous Fenton process

Halloysite Composites with Fe₃O₄Particles: The Effect of Impregnation on the Removal of Aqueous Cd(II) And Pb(II)

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Preparation and characterization of iron oxide (Fe 3 O 4 ) nanoparticles coated with polyvinylpyrrolidone/polyethylenimine through a facile one-pot deposition route

Cited by 46 publications

References 39 publications

Synthesis and characterization of amine-functionalized Fe3O4/Mesoporous Silica Nanoparticles (MSNs) as potential nanocarriers in drug delivery systems

Synthesis and characterization of amine-functionalized Fe3O4/Mesoporous Silica Nanoparticles (MSNs) as potential nanocarriers in drug delivery systems

Effectiveness of the dispersion of iron nanoparticles within micropores and mesopores of activated carbon for Rhodamine B removal in wastewater by the heterogeneous Fenton process

Halloysite Composites with Fe3O4Particles: The Effect of Impregnation on the Removal of Aqueous Cd(II) And Pb(II)

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Halloysite Composites with Fe₃O₄Particles: The Effect of Impregnation on the Removal of Aqueous Cd(II) And Pb(II)