Fast defluorination and removal of norfloxacin by alginate/Fe@Fe3O4 core/shell structured nanoparticles

Niu, Hongyun; DiZHANG,; Meng, Zhaofu; Cai, Yaqi

doi:10.1016/j.jhazmat.2012.05.036

Cited by 79 publications

(13 citation statements)

References 31 publications

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“…However, the Fenton system can be constrained by the accumulation of ferric oxide sludge, causing the decline of oxidation rates and requiring a separation step [18].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of magnetic alginate beads based on Fe3O4 nanoparticles for the removal of 3-methylindole from aqueous solution using Fenton process

Hammouda

Adhoum

Monser

2015

Journal of Hazardous Materials

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“…However, the Fenton system can be constrained by the accumulation of ferric oxide sludge, causing the decline of oxidation rates and requiring a separation step [18].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of magnetic alginate beads based on Fe3O4 nanoparticles for the removal of 3-methylindole from aqueous solution using Fenton process

Hammouda

Adhoum

Monser

2015

Journal of Hazardous Materials

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“…Hence, iron oxides have been used as adsorbents for arsenic(III) and its derivatives, cadmium(II), mercury(II), lead(II), chromium(VI), cesium, and radioactive actinides . Other types of pollutants have also been investigated in this context, examples include oil waste, phenolic compounds, pharmaceutical compounds, and dyes . Although several types of chemically functionalized sorbents have been described for lanthanide removal procedures, methods employing magnetic separation have been less exploited .…”

Section: Introductionmentioning

confidence: 99%

Uptake of Europium(III) from Water using Magnetite Nanoparticles

Carvalho

Daniel‐da‐Silva

Trindade

2016

Part. Part. Syst. Charact.

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It is demonstrated that colloidal magnetite nanoparticles can be used as nanosorbents for lanthanide ions dissolved in water. In particular, a series of experiments are performed for the removal of Eu(III) in distinct analytical conditions and by applying an external magnet to collect the sorbents previously dispersed in water samples. Furthermore, strategies for surface chemistry functionalization are also investigated, aiming to investigate the effect of this parameter on the removal capacity of the Fe3O4 nanoparticles. The supernatant solutions are monitored for the remaining amount of Eu(III) by fluorescence emission measurements in the presence of 2,6‐pyridinedicarboxylic acid as a sensitizer. The results demonstrate that neat Fe3O4 nanoparticles are capable of capturing lanthanide ions (III) from aqueous solutions (pH 7), without need of surface modification, and for subsequent removal by magnetic separation. During the removal, efficiency is increased after modifying the particles' surfaces with silica and 3‐aminopropyltrimethoxysilane; in alkaline medium (pH 10), there is complete removal regardless the type of nanosorbent used. This has been explained by the formation of insoluble Eu(III) species that adsorb strongly to the nanosorbents surfaces allowing their subsequent magnetic separation.

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“…One of the attractive features of MNPs is the possibility of fast and cost‐efficient separation by applying an external magnetic field, which makes them ideal candidates for practical use in catalysis processes. This new direction in catalysis has galvanized academic research and led to the development of a great number of magnetic‐based catalysts, especially magnetite (Fe 3 O 4 ) that has found application in various reactions . Several accounts of the synthesis, characterization and application of Fe 3 O 4 MNPs utilized in coupling reactions have been reported in the literature …”

Section: Introductionmentioning

confidence: 99%

A highly stable and efficient magnetically recoverable and reusable Pd nanocatalyst in aqueous media heterogeneously catalysed Suzuki C–C cross‐coupling reactions

Khakiani

Pourshamsian

Veisi

2015

Applied Organom Chemis

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Surface modification of Fe 3 O 4 nanoparticles with triethoxyethylcyanide groups was used for the immobilization of palladium nanoparticles to produce Fe 3 O 4 /Ethyl-CN/Pd. The catalyst was characterized using Fourier transform infrared, wavelengthdispersive X-ray, energy-dispersive X-ray and X-ray photoelectron spectroscopies, field-emission scanning electron and transmission electron microscopies, and X-ray diffraction, vibrating sample magnetometry and inductively coupled plasma analyses. In this fabrication, cyano groups played an important role as a capping agent. The catalytic behaviour of Fe 3 O 4 /Ethyl-CN/Pd nanoparticles was measured in the Suzuki cross-coupling reaction of various aryl halides (Ar-I, Ar-Br, Ar-Cl) with phenylboronic acid in aqueous phase at room temperature. Interestingly, the novel catalyst could be recovered in a facile manner from the reaction mixture by applying an external magnet device and recycled seven times without any significant loss in activity.

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Fast defluorination and removal of norfloxacin by alginate/Fe@Fe3O4 core/shell structured nanoparticles

Cited by 79 publications

References 31 publications

Synthesis of magnetic alginate beads based on Fe3O4 nanoparticles for the removal of 3-methylindole from aqueous solution using Fenton process

Synthesis of magnetic alginate beads based on Fe3O4 nanoparticles for the removal of 3-methylindole from aqueous solution using Fenton process

Uptake of Europium(III) from Water using Magnetite Nanoparticles

A highly stable and efficient magnetically recoverable and reusable Pd nanocatalyst in aqueous media heterogeneously catalysed Suzuki C–C cross‐coupling reactions

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