Heterogeneous sono-Fenton-like process using nanostructured pyrite prepared by Ar glow discharge plasma for treatment of a textile dye

Khataee, Alireza; Gholami, Peyman; Vahid, Behrouz

doi:10.1016/j.ultsonch.2015.09.012

Cited by 88 publications

(21 citation statements)

References 54 publications

(58 reference statements)

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“…6 demonstrates that the mentioned AOPs processes follow the pseudo-first order kinetic, which is in agreement with previous studies [6]. The apparent pseudo-first order rate constants (k app ) for the AB92 degradation were estimated from ln (A 0 /A t ) against time (t) plots and presented in Table 3.…”

Section: <Fig 6>supporting

confidence: 88%

“…It should be noticed that, the total leaked iron concentration was lower than 1 mg/L after heterogeneous sonoFenton-like process using the BMM 3 under pH range of 3 to 9. At this low level of leached iron, generation of • OH radicals would be mostly due to the heterogeneous process as opposed to the homogeneous one in the bulk solution for the AB92 removal [6,32].…”

Section: Effect Of the Operational Parameters On The Heterogeneous Somentioning

confidence: 97%

“…It is proven that the hydrogen peroxide can be formed in the solution under ultrasonic irradiation (Eq. 4) [6,7]. …”

Section: Introductionmentioning

confidence: 99%

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Heterogeneous sono-Fenton-like process using martite nanocatalyst prepared by high energy planetary ball milling for treatment of a textile dye

Dindarsafa

Khataee

Kaymak

et al. 2017

Ultrasonics Sonochemistry

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High energy planetary ball milling was applied to prepare sono-Fenton nanocatalyst from natural martite (NM). The NM samples were milled for 2-6h at the speed of 320rpm for production of various ball milled martite (BMM) samples. The catalytic performance of the BMMs was greater than the NM for treatment of Acid Blue 92 (AB92) in heterogeneous sono-Fenton-like process. The NM and the BMM samples were characterized by XRD, FT-IR, SEM, EDX and BET analyses. The particle size distribution of the 6h-milled martite (BMM) was in the range of 10-90nm, which had the highest surface area compared to the other samples. Then, the impact of main operational parameters was investigated on the process. Complete removal of the dye was obtained at the desired conditions including initial pH 7, 2.5g/L BMM dosage, 10mg/L AB92 concentration, and 150W ultrasonic power after 30min of treatment. The treatment process followed pseudo-first order kinetic. Environmentally-friendly modification of the NM, low leached iron amount and repeated application at milder pH were the significant benefits of the BMM. The GC-MS was successfully used to identify the generated intermediates. Eventually, an artificial neural network (ANN) was applied to predict the AB92 removal efficiency based upon the experimental data with a proper correlation coefficient (R=0.9836).

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Section: <Fig 6>supporting

confidence: 88%

Section: Effect Of the Operational Parameters On The Heterogeneous Somentioning

confidence: 97%

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Heterogeneous sono-Fenton-like process using martite nanocatalyst prepared by high energy planetary ball milling for treatment of a textile dye

Dindarsafa

Khataee

Kaymak

et al. 2017

Ultrasonics Sonochemistry

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“…To treat polluted soils, underground waters and wastewaters, catalytic heterogeneous processes employing magnetite (Fe 3 O 4 ), hematite (Fe 2 O 3 ), goethite (a-FeOOH), and magnetite (g-Fe 2 O 3 ) have been utilized widely in recent years. These sort of solid catalysts have significant potential to degrade resistant organic pollutants (e.g., dyes and phenol compounds) [19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Pilot plant fluidized‐bed reactor for degradation of basic blue 3 in heterogeneous fenton process in the presence of natural magnetite

Aghdasinia

Khataee

Sheikhi

et al. 2017

Env Prog and Sustain Energy

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Degradation of basic blue 3 (BB3) was studied in a pilot scale fluidized‐bed reactor (FBR) utilizing natural magnetite (NM) nanostructures for heterogeneous Fenton process. The morphology, structure, and specific surface area of NM nanostructure were determined employing scanning electron microscopy, X‐ray diffraction, X‐ray photoelectron spectroscopy (XPS), and Brunauer‐Emmett‐Teller (BET) methods, respectively. High mass transfer coefficients, continuous operating condition and high reaction rates due to suitable and sufficient contact of phases, can be noted as significant advantages of FBR. Influences of factors, which affect performance of fluidized‐bed heterogeneous Fenton process (NM/H2O2), for instances initial concentration of contaminant and H2O2, initial pH of solution and dosage of catalyst were investigated. At the desired operational condition, pH 5, 4 mM of H2O2, and 2.27 g/L of NM after 190 min, the degradation percentage of 84%. Excess amounts of catalyst dosage and hydrogen peroxide tend to scavenge hydroxyl radicals by H2O2 molecules. Whereas low initial concentration of the dye and low initial solution pH, enhanced the BB3 degradation. Reusability of NM through five successive experiments, demonstrated the acceptable proficiency of NM as catalyst for oxidative BB3 degradation. © 2017 American Institute of Chemical Engineers Environ Prog, 36: 1039–1048, 2017

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“…The Fenton process is one of the most studied AOPs and other processes derive from it as electro-Fenton (Oturan et al 2001;Pimentel et al 2008; Barhoumi et al 2016), photoFenton (Trabelsi-Souissi et al 2011Bouafia-Chergui et al 2012;Romero et al 2016), sono-Fenton (Sundararaman et al 2009; Chakma and Moholkar 2013; Khataee et al 2016), and so forth. Nevertheless, it still shows some contradictory results regarding the ideal conditions to obtain high Responsible editor: Philippe Garrigues * Antover Panazzolo Sarmento antoverps@ufg.br efficiencies on the pollutant degradation (Hermosilla et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Phenol degradation by Fenton-like process

Sarmento

Borges

Matos

et al. 2016

Environ Sci Pollut Res

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The main objective of this study was to investigate the optimum conditions for the Fenton-like process on phenol degradation, using Mn(2+) as a supporting catalyst in the Fenton reaction. The effect of the independent factors [H2O2], [Fe(2+)], [Mn(2+)] and t (reaction time) was evaluated on the efficiency of phenol degradation at two pHs (3 and 5). The experimental arrangement adopted was the Box-Behnken delineation, with the phenol concentration after the treatments suggested as response variable. At less acidic pH (5), regardless of [Mn(2+)], it was observed that the conventional Fenton process was the most efficient alternative, considering the optimum condition: 2.65 mmol L(-1) for [H2O2], 0.36 mmol L(-1) for [Fe(2+)], and 90 min for t. It was observed that the addition of Mn(2+) helped the phenol degradation at more acidic pH (3), obtaining the optimum condition: 6.17 mmol L(-1) for [H2O2], 0.36 mmol L(-1) for [Fe(2+)], 1.09 mmol L(-1) for [Mn(2+)], and 90 min for t.

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Heterogeneous sono-Fenton-like process using nanostructured pyrite prepared by Ar glow discharge plasma for treatment of a textile dye

Cited by 88 publications

References 54 publications

Heterogeneous sono-Fenton-like process using martite nanocatalyst prepared by high energy planetary ball milling for treatment of a textile dye

Heterogeneous sono-Fenton-like process using martite nanocatalyst prepared by high energy planetary ball milling for treatment of a textile dye

Pilot plant fluidized‐bed reactor for degradation of basic blue 3 in heterogeneous fenton process in the presence of natural magnetite

Phenol degradation by Fenton-like process

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