A facile method to produce magnetic nanoparticles and its influence on their magnetic and physical properties

Ortiz-Godoy, Nicolas; Diaz, Dayi Gilberto Agredo; Posada, Andrés Orlando Garzón; Vargas, Carlos Arturo Parra; Téllez, D.A. Landı́nez; Roa-Rojas, J.

doi:10.1016/j.matlet.2021.129700

Cited by 10 publications

(3 citation statements)

References 11 publications

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“… ( a ) Scheme for the co-precipitation method (reproduced with permission from Elsevier [ 34 ]). ( b – d ) Steps to synthesize Fe 3 O 4 NPs by thermal decomposition method.…”

Section: Figurementioning

confidence: 99%

Differentiating Nanomaghemite and Nanomagnetite and Discussing Their Importance in Arsenic and Lead Removal from Contaminated Effluents: A Critical Review

2021

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Arsenic and lead heavy metals are polluting agents still present in water bodies, including surface (lake, river) and underground waters; consequently, the development of new adsorbents is necessary to uptake these metals with high efficiency, quick and clean removal procedures. Magnetic nanoparticles, prepared with iron-oxides, are excellent candidates to achieve this goal due to their ecofriendly features, high catalytic response, specific surface area, and pulling magnetic response that favors an easy removal. In particular, nanomagnetite and maghemite are often found as the core and primary materials regarding magnetic nanoadsorbents. However, these phases show interesting distinct physical properties (especially in their surface magnetic properties) but are not often studied regarding correlations between the surface properties and adsorption applications, for instance. Thus, in this review, we summarize the main characteristics of the co-precipitation and thermal decomposition methods used to prepare the nano-iron-oxides, being the co-precipitation method most promising for scaling up processes. We specifically highlight the main differences between both nano-oxide species based on conventional techniques, such as X-ray diffraction, zero and in-field Mössbauer spectroscopy, X-ray photoelectron spectroscopy, X-ray absorption spectroscopy, and X-ray magnetic circular dichroism, the latter two techniques performed with synchrotron light. Therefore, we classify the most recent magnetic nanoadsorbents found in the literature for arsenic and lead removal, discussing in detail their advantages and limitations based on various physicochemical parameters, such as temperature, competitive and coexisting ion effects, i.e., considering the simultaneous adsorption removal (heavy metal–heavy metal competition and heavy metal–organic removal), initial concentration, magnetic adsorbent dose, adsorption mechanism based on pH and zeta potential, and real water adsorption experiments. We also discuss the regeneration/recycling properties, after-adsorption physicochemical properties, and the cost evaluation of these magnetic nanoadsorbents, which are important issues, but less discussed in the literature.

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“… ( a ) Scheme for the co-precipitation method (reproduced with permission from Elsevier [ 34 ]). ( b – d ) Steps to synthesize Fe 3 O 4 NPs by thermal decomposition method.…”

Section: Figurementioning

confidence: 99%

Differentiating Nanomaghemite and Nanomagnetite and Discussing Their Importance in Arsenic and Lead Removal from Contaminated Effluents: A Critical Review

2021

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show abstract

“…A previous theoretical study by Ilg and Kröger on the influence of dipolar interactions on the Néel and Brown relaxation times supports this hypothesis [55]. Such an effect of dipolar interactions on Néel time could explain how clustering affects field-cooling and zero-field-cooling magnetization curves [54] without affecting the magnetization curves at a given temperature.…”

Section: Limitations Of Our Modelmentioning

confidence: 71%

“…The absence of an effect of dipolar interactions on the magnetization curves of nanoparticles with a 3nm radius at 300K, even at high volumic fractions, could seem surprising. Indeed, dense clusters of iron oxide nanoparticles exhibit an important shift of the peak of their ZFC curves towards higher temperatures, when compared to the same, isolated particles [23,54,44]. This may be due to dipolar interaction modifying the Néel relaxation time [1] through the locally high fields it can produce.…”

Section: Limitations Of Our Modelmentioning

confidence: 99%

Monte Carlo Simulations of the Magnetic Behaviour of Iron Oxide Nanoparticle Ensembles: Taking Size Dispersion, Particle Anisotropy, and Dipolar Interactions into Account

Martin¹,

Gossuin²,

Bals³

et al. 2022

SSRN Journal

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Novel bioorthogonal reaction-mediated particle counting sensing platform using phage for rapid detection of Salmonella

Zhao

Huang

Wang

et al. 2022

Analytica Chimica Acta

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A facile method to produce magnetic nanoparticles and its influence on their magnetic and physical properties

Cited by 10 publications

References 11 publications

Differentiating Nanomaghemite and Nanomagnetite and Discussing Their Importance in Arsenic and Lead Removal from Contaminated Effluents: A Critical Review

Differentiating Nanomaghemite and Nanomagnetite and Discussing Their Importance in Arsenic and Lead Removal from Contaminated Effluents: A Critical Review

Monte Carlo Simulations of the Magnetic Behaviour of Iron Oxide Nanoparticle Ensembles: Taking Size Dispersion, Particle Anisotropy, and Dipolar Interactions into Account

Novel bioorthogonal reaction-mediated particle counting sensing platform using phage for rapid detection of Salmonella

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