Total removal of Hg (II) from wastewater using magnetic nanoparticles coated with nanometric Ag and functionalized with sodium 2-mercaptoethane sulfonate

Vicente-Martínez, Yésica; Caravaca, Manuel; Soto-Meca, Antonio

doi:10.1007/s10311-020-00987-x

Cited by 12 publications

(2 citation statements)

References 34 publications

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“…Then, 5.7 mL of diluted silver nitrate solution (0.011 g L −1 ) were added, the mixture was stirred for 5 min and using the magnet were separated and washed several time with water. Finally, these particles (Fe 3 O 4 @AgNPs) were suspended in 20 ml of water again 39 .…”

Section: Methodsmentioning

confidence: 99%

Magnetic core-modified silver nanoparticles for ibuprofen removal: an emerging pollutant in waters

Vicente-Martínez¹,

Caravaca²,

Soto-Meca³

et al. 2020

Sci Rep

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In this work we present a novel procedure for ibuprofen adsorption from waters employing magnetic core-modified silver nanoparticles. We demonstrate that 93% adsorption of ibuprofen is achieved in 45 min by means of a simple method, for neutral pH and room temperature, also using a low dose of adsorbent, equal to 7 mg in 500 µL of suspension. The characterization of the adsorbent, before and after adsorption, was carried out by means of field emission scanning electron microscopy, energy dispersive X-ray spectroscopy, BET analysis, Fourier-transform infrared spectroscopy and differential scanning calorimetry. It is worth pointing out that ibuprofen can be desorbed and the adsorbent can be reused, remaining unaltered for the first three cycles, and showing 89.3% adsorption efficiency after the third regeneration. A three-parameter model and the Langmuir isotherm characterize the kinetics and isotherm of adsorption.

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Section: Methodsmentioning

confidence: 99%

Magnetic core-modified silver nanoparticles for ibuprofen removal: an emerging pollutant in waters

Vicente-Martínez¹,

Caravaca²,

Soto-Meca³

et al. 2020

Sci Rep

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“…These nanomaterials can also have multiple active sorption sites and tuneable porosity (El-sayed 2020 ). One specific class of nanoadsorbents is magnetic nanoadsorbents (Mahamadi 2019 ; Franzreb 2020 ; Vicente-Martínez et al 2020 ; He et al 2021 ; Jiang et al 2021 ; Peralta et al 2021 ; Mohammadi et al 2021 ; Nithya et al 2021 ; Álvarez-Manzaneda et al 2021 ; Plohl et al 2021 ). According to a recent review, research on the preparation and use of magnetic adsorbents has been progressing fast, and has yielded more than eightfold rise in the number of publications in the period from 2010 to 2020 (Reshadi et al 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Magnetic nanoadsorbents for micropollutant removal in real water treatment: a review

Mudhoo

Sillanpää

2021

Environ Chem Lett

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Pure water will become a golden resource in the context of the rising pollution, climate change and the recycling economy, calling for advanced purification methods such as the use of nanostructured adsorbents. However, coming up with an ideal nanoadsorbent for micropollutant removal is a real challenge because nanoadsorbents, which demonstrate very good performances at laboratory scale, do not necessarily have suitable properties in in full-scale water purification and wastewater treatment systems. Here, magnetic nanoadsorbents appear promising because they can be easily separated from the slurry phase into a denser sludge phase by applying a magnetic field. Yet, there are only few examples of large-scale use of magnetic adsorbents for water purification and wastewater treatment. Here, we review magnetic nanoadsorbents for the removal of micropollutants, and we explain the integration of magnetic separation in the existing treatment plants. We found that the use of magnetic nanoadsorbents is an effective option in water treatment, but lacks maturity in full-scale water treatment facilities. The concentrations of magnetic nanoadsorbents in final effluents can be controlled by using magnetic separation, thus minimizing the ecotoxicicological impact. Academia and the water industry should better collaborate to integrate magnetic separation in full-scale water purification and wastewater treatment plants.

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Quantification of Major Inorganic Contaminants in a Mediterranean Coastal Lagoon with a Large Dystrophic Crisis

García-Onsurbe,

Caravaca,

Soto-Meca

et al. 2024

Bull Environ Contam Toxicol

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Total removal of Hg (II) from wastewater using magnetic nanoparticles coated with nanometric Ag and functionalized with sodium 2-mercaptoethane sulfonate

Cited by 12 publications

References 34 publications

Magnetic core-modified silver nanoparticles for ibuprofen removal: an emerging pollutant in waters

Magnetic core-modified silver nanoparticles for ibuprofen removal: an emerging pollutant in waters

Magnetic nanoadsorbents for micropollutant removal in real water treatment: a review

Quantification of Major Inorganic Contaminants in a Mediterranean Coastal Lagoon with a Large Dystrophic Crisis

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