Improvement of zero valent iron nanoparticles by ultrasound-assisted synthesis, study of Cr(VI) removal and application for the treatment of metal surface processing wastewater

Bounab, N.; Duclaux, Laurent; Reinert, Laurence; Oumedjbeur, A.; Boukhalfa, Chahrazed; Penhoud, Philippe; Muller, Fabrice

doi:10.1016/j.jece.2020.104773

Cited by 26 publications

(7 citation statements)

References 60 publications

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“…Previously several methods have been used for the synthesis of iron nanoparticles like chemical reduction by sodium borohydride (NaBH 4 ) under mechanical stirring or ultrasonication in an inert atmosphere [39], Laser fragmentation of iron plates into ligand-free iron nanoparticles in different liquids [40], chemical co-precipitation of Fe 2+ and Fe 3+ solutions in a definite ratio for magnetite preparation [41] as Lakhanpal et al [42] did in their study to coat magnetite nanoparticle over sand particles. The organic green synthesis method of iron nanoparticle synthesis generally use water as a solvent and it is free of toxic chemicals, requiring less time, energy, and cost for synthesis [43].…”

Section: Synthesis Of Iron Nanoparticlesmentioning

confidence: 99%

Fenton like oxidative degradation of toxic water pollutants by iron nanoparticles synthesized via facile green route using waste iron rust as the iron precursor

Rawat

Singh

2022

Environmental Engineering Research

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Corrosion of iron by oxidation is a global problem that affects the economy and gives rise to environmental pollution. Iron rust is oxide or hydroxide of iron, it can be used as a secondary iron source which will lead to its management as well as reduce the pressure on primary iron sources. In the present study, waste iron rust was used as the precursor of iron for the synthesis of iron nanoparticles via the green route using extract of dried Jatropha leaf. Synthesized nanoparticles were characterized using different instrumental techniques. Synthesized iron nanoparticles bear an extremely large specific surface area of 190.2 m2/g. The catalytic potential of synthesized nanoparticles was tested for the degradation of toxic organic pollutants phenol and p-nitrophenol (PNP) in an aqueous solution. Both the pollutants were removed rapidly in the initial 30 minutes of the reaction time. Optimization of the removal process was done by varying different variables. Maximum removal of phenol (~98%) and PNP (~95%) was achieved at 0.1 g/L concentration of nanoparticles. The degradation reaction rate was determined by pseudo-first-order and pseudo-second-order kinetics and the data was found to be followed best by the pseudo-first-order kinetics.

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Section: Synthesis Of Iron Nanoparticlesmentioning

confidence: 99%

Fenton like oxidative degradation of toxic water pollutants by iron nanoparticles synthesized via facile green route using waste iron rust as the iron precursor

Rawat

Singh

2022

Environmental Engineering Research

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“…31 Another paper studied the Cr(VI) removal with a nZVI material prepared using US (20 kHz) during the synthesis; these nanoparticles had a higher specific surface area compared with the ones prepared in the absence of US and have been found very effective for Cr(VI) removal. 37 In the present paper, the application of NSTAR for Cr(VI) reduction with US assistance in the presence of EDTA or Cit as additives under air bubbling has been studied. NSTAR powder is a different material from those previously tested in combination with US.…”

Section: Introductionmentioning

confidence: 99%

Synergistic Removal of Cr(VI) with Stable Nanozerovalent Iron Particles and Ultrasound Assistance in the Presence of Organic Additives

Cancelada,

Meichtry,

Destaillats

et al. 2024

ACS Eng. Au

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Commercial stable zerovalent iron nanoparticles (nZVI) (NSTAR, not activated) combined with ultrasound (US) were tested for Cr(VI) reductive removal (0.3 mM, pH 3, Fe/Cr molar ratio of 3:1) in the presence of the carboxylic acids (CAs) ethylenediaminetetraacetic acid (EDTA, 1 mM) or citric acid (Cit, 2 mM), in a system open to the air. No Cr(VI) decay up to 180 min was observed under US when only NSTAR nanoparticles were used, while other previously tested commercial nZVI (N25) showed about 40% decay in a few minutes but without further Cr(VI) removal. The addition of EDTA and Cit enabled Cr(VI) removal with NSTAR in the absence of US without prior activation of the particles. A pseudo zero-order kinetics was followed, yielding 32 and 49% removal with EDTA and Cit, respectively. When US was applied, these values almost doubled, reaching 59 and 88% for EDTA and Cit, respectively. A mechanism for Cr(VI) decay was proposed. The present results indicate that the simultaneous use of US and CAs allows for a synergistic Cr(VI) removal by NSTAR avoiding the need of an activation step of the nanoparticles, with a more effective result of Cit compared with EDTA.

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“…Nanomaterials as adsorbents, have attracted considerable attraction because of their larger specific surface areas, welldefined shapes, and manageable size. Iron nanoparticles (including zero-valent iron and iron oxide nanoparticles) have been extensively applied in environmental remediation with their distinctive physical and chemical characteristics, great specific surface areas, high reaction activity and abundant raw material sources (Handojo et al 2020;Bounab et al 2021;Golabiazar et al 2021). However, due to its slow removal rate of some pollutants, narrow range of active pH value (Bounab et al 2021), easy agglomeration and other problems, researchers focus more on iron nanoparticles modification to overcome its shortcomings.…”

Section: Graphical Abstract Introductionmentioning

confidence: 99%

“…Iron nanoparticles (including zero-valent iron and iron oxide nanoparticles) have been extensively applied in environmental remediation with their distinctive physical and chemical characteristics, great specific surface areas, high reaction activity and abundant raw material sources (Handojo et al 2020;Bounab et al 2021;Golabiazar et al 2021). However, due to its slow removal rate of some pollutants, narrow range of active pH value (Bounab et al 2021), easy agglomeration and other problems, researchers focus more on iron nanoparticles modification to overcome its shortcomings. At present, the main modification measures include green synthetic iron nanoparticles, sulfide-modified iron nanoparticles, supported iron nanoparticles, and stabilized-modified iron nanoparticles (Zhang et al 2018(Zhang et al , 2020Liang et al 2021).…”

Section: Graphical Abstract Introductionmentioning

confidence: 99%

Green sulfidated iron oxide nanocomposites for efficient removal of Malachite Green and Rhodamine B from aqueous solution

Guo

Zhang

Song³

et al. 2022

Water Science and Technology

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A green and facile pathway was described using Viburnum odoratissimum leaf extract in the presence of sodium thiosulfate for the synthesis of sulfidated iron oxide nanocomposites (S-Fe NCs) adsorbents. The prepared S-Fe NCs can be used for the efficient removal of Malachite Green (MG) and Rhodamine B (RhB) from aqueous solution. Analytical techniques by Scanning electron microscopy (SEM), Energy dispersive X-ray spectroscopy (EDS), Transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transformed infrared (FTIR), and X-ray photoelectron spectroscopy (XPS) were applied to understand the morphologies and compositions of S-Fe NCs. The stability of the adsorption capacity on S-Fe NCs was studied. Results from the characterization studies showed that S-Fe NCs was mainly composed of iron oxides, iron sulfides and biomolecules. The S-Fe NCs displayed high adsorption capacity for a wide range of pH values. The Koble-Corrigan isotherm model and Elovich model well described the adsorption process. The maximum adsorption capacity for MG and RhB were 4.31 mmol g−1 and 2.88 mmol g−1 at 303 K, respectively. The adsorption mechanism may be attributed to the electrostatic interaction, the hydrogen bonding, the π-π stacking interactions, the inner-sphere surface complexation or the cation bridging among the S-Fe NCs and dye molecules.

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Improvement of zero valent iron nanoparticles by ultrasound-assisted synthesis, study of Cr(VI) removal and application for the treatment of metal surface processing wastewater

Cited by 26 publications

References 60 publications

Fenton like oxidative degradation of toxic water pollutants by iron nanoparticles synthesized via facile green route using waste iron rust as the iron precursor

Fenton like oxidative degradation of toxic water pollutants by iron nanoparticles synthesized via facile green route using waste iron rust as the iron precursor

Synergistic Removal of Cr(VI) with Stable Nanozerovalent Iron Particles and Ultrasound Assistance in the Presence of Organic Additives

Green sulfidated iron oxide nanocomposites for efficient removal of Malachite Green and Rhodamine B from aqueous solution

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