Environmentally-safe bimetallic Ag@Co magnetic nanocomposites with antimicrobial activity

Alonso, Amanda; Vigués, Núria; Muñoz-Berbel, Xavier; Macanás, Jorge; Muñoz, Marı́a; Mas, Jordi; Muraviev, Dmitri

doi:10.1039/c1cc13696h

Cited by 37 publications

(30 citation statements)

References 8 publications

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“…Furthermore, TEM images of the cross-sectioned nanomaterials for protocol C is illustrated in Figure 2a. As it is observed, the NPs on the polymer show a size of 15 -20 nm as it was also shown at [83]. Crystalline structure of Fe3O4-NPs was confirmed by electron diffraction pattern as shown in Figure 2b.…”

Section: Sem-eds Xrd and Tem Analysis Of The Nanocompositessupporting

confidence: 51%

“…Pre-treatment of the C100 was carried out by following the procedure already described [83,84]. First, the raw material was treated with 1.0 M NaCl for 2 h and washed with deionized water (3 times) so as to convert all the functional groups into Na + form.…”

Section: Synthesis Of the Nanocomposite Based On Magnetite Npsmentioning

confidence: 99%

“…Immobilization of the Fe3O4-NPs on the polymeric matrix, C100, was carried out using a variation of the Intermatrix Synthesis (IMS) protocol coupled to a co-precipitation method already reported [83].…”

Section: Synthesis Of the Nanocomposite Based On Magnetite Npsmentioning

confidence: 99%

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Phosphate removal and recovery from water using nanocomposite of immobilized magnetite nanoparticles on cationic polymer

Markeb

Alonso

Dorado

et al. 2016

Environmental Technology

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Highlights• Immobilization of magnetite nanoparticles on cationic polymer was synthesized.• Phosphate removal using magnetite based nanocomposites was tested.• Adsorption isotherms of phosphate at two pH; 5 and 7 were performed.• Different isotherms models were applied for experimental data fitting.• Regeneration and reusability of the magnetite based nanocomposites were carried out. Graphical Abstract 2 AbstractA novel nanocomposite based on magnetite nanoparticles (Fe3O4-NPs) immobilized on the surface of the cationic exchange polymer, C100, using a modification of the coprecipitation method was developed to obtain magnetic nanocomposites (NCs) for phosphate removal and recovery from water. High resolution TEM-EDS, SEM, XRD, and ICP-OES were used to characterize the NCs. The continuous adsorption process by the so-called breakthrough curves was used to determine the adsorption capacity of the Fe3O4 based NC. The adsorption 3 capacity conditions were studied under different conditions (pH, phosphate concentration and concentration of NPs). The optimum concentration of iron in the NC for phosphate removal was 23.59 mgFe/gNC. The sorption isotherms of this material were performed at pHs 5 and 7.Taking into account the real application of this novel material in real water, the experiments were performed at pH 7, achieving an adsorption capacity higher than 4.9 mgPO4-P/gNC.Moreover, Freundlich, Langmuir and a combination of them fit the experimental data and were used for interpreting the influence of pH on the sorption and the adsorption mechanism for this novel material. Furthermore, regeneration and reusability of the nanocomposite were tested obtaining 97.5 % recovery of phosphate for the first cycle and at least 7 cycles of adsorptiondesorption were carried out with more than 40% of recovery. Thus, this work described a novel magnetic nanoadsorbent with promoting properties for phosphate recovery in wastewater.

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Section: Sem-eds Xrd and Tem Analysis Of The Nanocompositessupporting

confidence: 51%

Section: Synthesis Of the Nanocomposite Based On Magnetite Npsmentioning

confidence: 99%

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Phosphate removal and recovery from water using nanocomposite of immobilized magnetite nanoparticles on cationic polymer

Markeb

Alonso

Dorado

et al. 2016

Environmental Technology

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“…Depending on the chemical nature of these MNPs, the produced PMNCs have different applications: bactericide assays, complex water treatment, heterogeneous catalysis and electrocatalysis [5,12,33,[48][49][50][51]. In despite of the in situ formation of the MNPs on the polymeric support, its initial ion exchange properties are not significantly changed, which represents and advantage of IMS.…”

Section: Introductionmentioning

confidence: 99%

“…From this viewpoint, they can be considered as a "nano analogous" of fibrous carboxylic ion exchange materials such as, for example FIBAN K-4. [31,32] The surface of these materials can be easily modified with MNPs as it has been shown in our recent publications [33,34].…”

Section: Introductionmentioning

confidence: 99%

Intermatrix Synthesis as a rapid, inexpensive and reproducible methodology for the in situ functionalization of nanostructured surfaces with quantum dots

Bastos-Arrieta

Muñoz

Stenbock-Fermor

et al. 2016

Applied Surface Science

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This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Multiwall Carbon Nanotubes (MWCNTs) and Nanodiamonds (NDs). The synthetic route takes advantage of the ion exchange functionality of the reactive surfaces for the loading of the QDs precursor and consequent QDs appearance by precipitation. The benefits of such modified nanomaterials were studied using CdS-QDs@MWCNTs hybrid-nanomaterials.CdS-QDs@MWCNTs has been used as conducting filler for the preparation of electrochemical nanocomposite sensors, which present electrocatalytic properties. Finally,

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Intermatrix Synthesis and Characterization of Polymer‐stabilized Functional Metal and Metal Oxide Nanoparticles

et al. 2013

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Environmentally-safe bimetallic Ag@Co magnetic nanocomposites with antimicrobial activity

Abstract: In this communication we describe the synthesis, characterization and evaluation of the bactericide activity of a superparamagnetic bimetallic Ag/Co polymeric nanocomposite material for the treatment of bacteria contaminated aqueous solutions.

Cited by 37 publications

References 8 publications

Phosphate removal and recovery from water using nanocomposite of immobilized magnetite nanoparticles on cationic polymer

Phosphate removal and recovery from water using nanocomposite of immobilized magnetite nanoparticles on cationic polymer

Intermatrix Synthesis as a rapid, inexpensive and reproducible methodology for the in situ functionalization of nanostructured surfaces with quantum dots

Intermatrix Synthesis and Characterization of Polymer‐stabilized Functional Metal and Metal Oxide Nanoparticles

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