Heterogeneous activation of peroxymonosulfate with Fe3O4 magnetic nanoparticles for degradation of Reactive Black 5: Batch and column study

Fadaei, Saeid; Noorisepehr, Mohammad; Pourzamani, Hamidreza; Salari, Mehdi; Moradnia, Maryam; Darvishmotevalli, Mohammad; Mengelīzadeh, Nezamaddin

doi:10.1016/j.jece.2021.105414

Cited by 42 publications

(14 citation statements)

References 47 publications

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“…On the other hand, the presence of PAA may convert •OH to C− via the reaction of •OH with PAA according to Equation (10). In comparison with previously reported results (Table 1), this process showed a relatively rapid removal of these three pollutants, especially RB5 [41][42][43][44][45][46]. The •OH was identified in Fe 2+ /PAA/H 2 O 2 system via EPR.…”

Section: Process Degradation Efficiency Assessmentsupporting

confidence: 56%

Evaluation of Fe2+/Peracetic Acid to Degrade Three Typical Refractory Pollutants of Textile Wastewater

et al. 2022

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In this work, the degradation performance of Fe2+/PAA/H2O2 on three typical pollutants (reactive black 5, ANL, and PVA) in textile wastewater was investigated in comparison with Fe2+/H2O2. Therein, Fe2+/PAA/H2O2 had a high removal on RB5 (99%) mainly owing to the contribution of peroxyl radicals and/or Fe(IV). Fe2+/H2O2 showed a relatively high removal on PVA (28%) mainly resulting from ·OH. Fe2+/PAA/H2O2 and Fe2+/H2O2 showed comparative removals on ANL. Additionally, Fe2+/PAA/H2O2 was more sensitive to pH than Fe2+/H2O2. The coexisting anions (20–2000 mg/L) showed inhibition on their removals and followed an order of HCO3− > SO42− > Cl−. Humic acid (5 and 10 mg C/L) posed notable inhibition on their removals following an order of reactive black 5 (RB5) > ANL > PVA. In practical wastewater effluent, PVA removal was dramatically inhibited by 88%. Bioluminescent bacteria test results suggested that the toxicity of Fe2+/PAA/H2O2 treated systems was lower than that of Fe2+/H2O2. RB5 degradation had three possible pathways with the proposed mechanisms of hydroxylation, dehydrogenation, and demethylation. The results may favor the performance evaluation of Fe2+/PAA/H2O2 in the advanced treatment of textile wastewater.

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Section: Process Degradation Efficiency Assessmentsupporting

confidence: 56%

Evaluation of Fe2+/Peracetic Acid to Degrade Three Typical Refractory Pollutants of Textile Wastewater

et al. 2022

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“…Moreover, at the studied temperature (at 293, 303, 313, and 323 K), ΔG 0 values for benzene adsorption were −5.82, −7.25, −8.19, and −10.17 kJ mol −1 , while the values for toluene adsorption were −7.23, −10.78, −12.95, and −16.35 kJ mol −1 , respectively. The negative values for ΔG° were indicative of the spontaneous nature of the evaluated adsorption, and increasing temperature enhances the adsorption capability of benzene and toluene [ 66 , 67 , 68 ].…”

Section: Resultsmentioning

confidence: 99%

Removal of Benzene and Toluene from Synthetic Wastewater by Adsorption onto Magnetic Zeolitic Imidazole Framework Nanocomposites

Kyzas

McKay

Al-Musawi³

et al. 2022

Nanomaterials

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Considering the risk associated with exposure to benzene and toluene in water resources, researchers have been motivated to conduct studies to remove them from aqueous solutions. Thus, by performing the present study, the potential of Fe3O4/zeolite imidazolate framework nanoparticles (Fe3O4@ZIF-8) was evaluated for the adsorption of benzene and toluene. Accordingly, the solution pH, Fe3O4@ZIF-8 dosage, mixing time, concentration of benzene and toluene, and temperature, were the parameters considered for conducting the batch experiments, for which their effect on adsorption efficiency was evaluated. Our conducted experiments introduced the neutral pH as the best pH range to obtain the maximum removal. Fitting the adsorption data into the various models revealed the aptness of the Langmuir isotherm equation in describing experimental information and highest adsorption capacity; for benzene it was 129.4, 134.2, 137.3, and 148.2 mg g−1, but for toluene it was 118.4, 125.2, 129.6, and 133.1 mg g−1, for temperature 20, 30, 40, and 50 °C, respectively. Using obtained optimal conditions, the adsorption efficiencies of benzene and toluene were obtained to be 98.4% and 93.1%, respectively. Kinetic studies showed acceptable coefficients for PSO kinetics and confirmed its suitability. Also, the recyclability results showed that for six consecutive periods of the adsorption-desorption process, the percentage of removal decreased by only 6% for benzene and toluene. Moreover, calculating thermodynamic parameter changes for benzene and toluene removal confirmed the favorability and spontaneity of the studied process and its endothermic nature. Considering the above findings, Fe3O4@ZIF-8 was found to be an operative adsorbent for removing pollutants.

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“…The result emphasizes a great paramagnetic behaviour of MGO, showing a saturation magnetization of 44.7 emu/g. 60 …”

Section: Resultsmentioning

confidence: 99%

Magnetic Fe₃O₄@graphene oxide improves the therapeutic effects of embryonic stem cells on acute liver damage

et al. 2021

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Heterogeneous activation of peroxymonosulfate with Fe3O4 magnetic nanoparticles for degradation of Reactive Black 5: Batch and column study

Cited by 42 publications

References 47 publications

Evaluation of Fe2+/Peracetic Acid to Degrade Three Typical Refractory Pollutants of Textile Wastewater

Evaluation of Fe2+/Peracetic Acid to Degrade Three Typical Refractory Pollutants of Textile Wastewater

Removal of Benzene and Toluene from Synthetic Wastewater by Adsorption onto Magnetic Zeolitic Imidazole Framework Nanocomposites

Magnetic Fe₃O₄@graphene oxide improves the therapeutic effects of embryonic stem cells on acute liver damage

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Heterogeneous activation of peroxymonosulfate with Fe3O4 magnetic nanoparticles for degradation of Reactive Black 5: Batch and column study

Cited by 42 publications

References 47 publications

Evaluation of Fe2+/Peracetic Acid to Degrade Three Typical Refractory Pollutants of Textile Wastewater

Evaluation of Fe2+/Peracetic Acid to Degrade Three Typical Refractory Pollutants of Textile Wastewater

Removal of Benzene and Toluene from Synthetic Wastewater by Adsorption onto Magnetic Zeolitic Imidazole Framework Nanocomposites

Magnetic Fe3O4@graphene oxide improves the therapeutic effects of embryonic stem cells on acute liver damage

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Product

Resources

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Magnetic Fe₃O₄@graphene oxide improves the therapeutic effects of embryonic stem cells on acute liver damage