Degradation of methyl orange using Fenton catalytic reaction

The use of acid mud produced during the aluminum extraction of kaolinite to synthesize mobil composition of matter no. 41 (MCM‐41) type material is proposed in this work. The acid mud was placed in contact with NaOH at 550°C to release the silicon and aluminum, then the fused material obtained was mixed with cetyltrimethylammonium bromide (CTAB) followed by a hydrothermal treatment considering a factorial design 2k with four experimental factors (CTAB dose, synthesis time, temperature, and solid/liquid ratio). The formation of MCM‐41 was evaluated via X‐ray diffraction (XRD) and scanning electron microscopy coupled with electrons dispersive spectroscopy (SEM‐EDS) analysis complemented with surface area analysis from which a maximum value of 550 m2/g was obtained for the best material. XRD results showed the typical pattern of MCM‐41 measured at low angle, furthermore, the characteristic type IV isotherm of adsorption–desorption was observed in certain materials. The elemental analysis showed the presence of iron and titanium oxide, which could be of great interest for the use of the material as a photocatalyst. Preliminary tests, using the MCM‐41 samples synthesized and methyl orange revealed a moderate photocatalytic activity of the material as compared to a commercial product (P25); opening up opportunities for the further development of such materials as potential and cost‐effective photocatalysts for pollutants degradation in wastewater. © 2018 American Institute of Chemical Engineers Environ Prog, 38:e13069, 2019

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“…Youssef et al . , proposed three possible orders in the reaction kinetic (for similar systems); zero, first and second order (Eqs. –).

C_{t} = C_{0} - k_{0} t

C_{t} = C_{0} e^{- k_{1} t}

\frac{1}{C_{t}} = \frac{1}{C_{0}} + k_{2} t

…”

Section: Resultsmentioning

confidence: 99%

“…Kinetic analysis was conducted to understand the behavior of the degradation of the dye using the MCM-41 material. Youssef et al [14], proposed three possible orders in the reaction kinetic (for similar systems); zero, first and second order (Eqs. 2-4).…”

Section: Resultsmentioning

confidence: 99%

Synthesis of MCM‐41 material from acid mud generated in the aluminum extraction of kaolinite mineral

Coutiño-González

Rocha

Robles

et al. 2018

Env Prog and Sustain Energy

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“…In summary, Fe 3 O 4 /Au NPs were first employed as catalyst in the oxidative degradation of MO. Although the degradation mechanism of MO in the presence of H 2 O 2 is still not very clear, [37,38] the Fe 3 O 4 /Au NPs have exhibited obvious synergistic effect in catalytic activity. The degradation reaction constant k obs is 6.31×10 2 min 1 , which is 27 and 6 times higher than that for pristine Fe 3 O 4 NPs and Fe 3 O 4 ＋Au NPs mixture, respectively.…”

Section: Discussionmentioning

confidence: 99%

Enhancement of Fe₃O₄/Au Composite Nanoparticles Catalyst in Oxidative Degradation of Methyl Orange Based on Synergistic Effect

et al. 2017

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Enhancement of Fe3O4/Au nanoparticles (Fe3O4/Au NPs) catalyst was observed in the oxidative degradation of methyl orange by employing H2O2 as oxidant. To evaluate the catalytic activity of Fe3O4/Au nanoparticles, different degradation conditions were investigated such as the amounts of catalyst, H2O2 concentration and pH value. Based on our data, methyl orange was degraded completely in a short time. The enhanced catalytic activity and increased oxidation rate constant may be ascribed to synergistic catalyst‐activated decomposition of H2O2 to •OH radical, which was one of the strong oxidizing species. Besides, Fe3O4/Au nanoparticles have exhibited satisfying recycle performance for potential industrial application.

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“…Ghorbanloo et al (2015) investigated the effect of temperature on dye degradation and reported that the degradation followed a pseudo-first-order rate kinetics with rate constant k values increasing as the reaction temperatures were increased, which led to select 50 °C as an moderate temperature (Ghorbanloo et al, 2015). Higher dosage of H2O2 causes decrease in the degradation efficiency of MO, which was mainly caused by the scavenging effect of excessive H2O2 to HO* therefore, a suitable H2O2 concentration of 29.07 mM was selected (Youssef et al, 2016).…”

Section: Box-behnken Design (Bbd) Optimizationmentioning

confidence: 99%

Biogenic synthesis of PdNCs embedded α-Fe2O3 microspheres using Myrtus cumini L. leaf extract and a Box-Behnken optimization of its Fenton-like catalytic activity

2019

Global NEST: The International Journal

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<p>Microspheres (MSs) of paramagnetic iron oxide (α-Fe2O3) embedded with palladium nanocubes (PdNCs) were biosynthesized using Myrtus cumini L. leaf extract. The synthesized PdNCs embedded α-Fe2O3 microspheres were characterized using FTIR, XRD and SEM/EDX. The FTIR spectrum of the Myrtus cumini L. leaf extract confirmed the presence of phenol, ester and amine groups that were involved in the bio-reduction of PdCl2 to PdNCs. SEM/EDX revealed that the PdNCs with size range of 15–250 nm were present on the surface of the synthesized microspheres. Box-Behnken Design (BBD) was employed for optimization of Methyl Orange (MO) decolorization using α-Fe2O3MSs and PdNCs embedded α-Fe2O3MSs at pH (1, 2 and 3), catalyst dosage (1, 3 and 5 g L-1) and reaction irradiation time (30, 60 and 90 min). It was found that PdNCs embedded α-Fe2O3MSs had maximum decolorization of 96.56 % at pH 1.72, catalyst dosage 2.69 g L-1 and irradiation time 68.34 min.</p>

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Degradation of methyl orange using Fenton catalytic reaction

Cited by 165 publications

References 11 publications

Synthesis of MCM‐41 material from acid mud generated in the aluminum extraction of kaolinite mineral

Synthesis of MCM‐41 material from acid mud generated in the aluminum extraction of kaolinite mineral

Enhancement of Fe₃O₄/Au Composite Nanoparticles Catalyst in Oxidative Degradation of Methyl Orange Based on Synergistic Effect

Biogenic synthesis of PdNCs embedded α-Fe2O3 microspheres using Myrtus cumini L. leaf extract and a Box-Behnken optimization of its Fenton-like catalytic activity

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Degradation of methyl orange using Fenton catalytic reaction

Cited by 165 publications

References 11 publications

Synthesis of MCM‐41 material from acid mud generated in the aluminum extraction of kaolinite mineral

Synthesis of MCM‐41 material from acid mud generated in the aluminum extraction of kaolinite mineral

Enhancement of Fe3O4/Au Composite Nanoparticles Catalyst in Oxidative Degradation of Methyl Orange Based on Synergistic Effect

Biogenic synthesis of PdNCs embedded α-Fe2O3 microspheres using Myrtus cumini L. leaf extract and a Box-Behnken optimization of its Fenton-like catalytic activity

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Enhancement of Fe₃O₄/Au Composite Nanoparticles Catalyst in Oxidative Degradation of Methyl Orange Based on Synergistic Effect