Magnetite/Fe-Al-montmorillonite as a Fenton catalyst with efficient degradation of phenol

Yin, Hua; Wu, Honghai; Feng, Sun

doi:10.1016/j.jcis.2017.05.110

Cited by 46 publications

(14 citation statements)

References 44 publications

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“…[ 53–55 ] On the other hand, the XRD pattern of MagMt displayed new diffraction peaks at 2θ = 35.6°, 53.6°, 57.3°, and 63.0°, which are characteristic peaks of Fe 3 O 4 . [ 56 ] These findings supported the intercalation of Fe 3 O 4 into interlayers [ 57 ] and the magnetization of montmorillonite.…”

Section: Resultssupporting

confidence: 66%

Adsorption of Diazo Dye from Aqueous Solutions by Magnetic Montmorillonite Composite

Akar

Ozdemir

Sayin

et al. 2020

CLEAN Soil Air Water

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Synthetic dyes have complex molecular structures and are stable molecules against oxidizing agents, sunlight, and microbial attack. Therefore, the treatment of dye‐containing wastewater using appropriate techniques is of great importance. Difficulties in separation and recovery of an adsorbent from the solution limit the large‐scale applications of the adsorption process. A magnetic separation technique can be adapted to the adsorption process to overcome these limitations. In this study, a natural mineral‐based magnetic adsorbent is prepared by a co‐precipitation method. Adsorption performance of magnetic montmorillonite (MagMt) is evaluated in both batch and continuous systems as a function of initial pH, contact time, adsorbent dosage, ionic strength, flow rate, and bed depth. MagMt is characterized through infrared (IR) spectroscopy, scanning electron microscopy (SEM), energy dispersive X‐ray analysis (EDX), vibrating sample magnetometer (VSM), X‐ray diffraction (XRD), and zeta potential measurement. Sorption yield of MagMt for Bismark Brown‐Y (BB‐Y) is found as maximum (98.60%) at pH 4 with 40 mg adsorbent. Fast sorption equilibrium is attained within 10 min and the sorption data follow the pseudo‐second‐order kinetic model and Langmuir isotherm model. The maximum monolayer sorption capacity of MagMt is 138.70 mg g‒1.

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Section: Resultssupporting

confidence: 66%

Adsorption of Diazo Dye from Aqueous Solutions by Magnetic Montmorillonite Composite

Akar

Ozdemir

Sayin

et al. 2020

CLEAN Soil Air Water

View full text Add to dashboard Cite

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“…Phenolic compounds [2], which are typical organic pollutants, serve as important raw materials for preservatives, fungicides and drugs; however, large amounts of phenol wastewater are generated in the coatings, pesticides, printing, and other industrial fields [3]. Other researchers have shown that, at present, the chemical and biochemical approaches are the most studied water purification methods for eliminating organic pollutants, while poor treatment effects and higher operating costs hinder their extensive development [4,5]; therefore, finding a cheap and efficient method for water purification is imperative and valuable. In contrast, another research investigation reported that adsorption methods could effectively remove a variety of organic and inorganic pollutants from sewerage through three mechanisms, i.e., physical adsorption, chemical adsorption, and ion exchange adsorption [6].…”

Section: Introductionmentioning

confidence: 99%

Adsorption Analyses of Phenol from Aqueous Solutions Using Magadiite Modified with Organo-Functional Groups: Kinetic and Equilibrium Studies

Wang

et al. 2018

Materials

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Organically-modified magadiite (MAG–CTAB–KH550) was synthesized via ion-exchange method and condensation reaction in the presence of pure magadiite (MAG), cetyltrimethylammonium bromide (CTAB) and γ-aminopropyltriethoxysilane (KH550) in aqueous solution in this research. This new adsorbent material was studied using scanning electron microscope (SEM), X-ray diffraction (XRD), Fourier transforms infrared spectroscopy (FTIR), and N2 adsorption/desorption isotherms process. It was found that the MAG–CTAB–KH550 has high Brunaur-Emmet-Teller (BET) specific surface area and mesoporous pore size distribution which enhanced its ability to remove phenol in aqueous solution; and, the value of pH has a relatively large impact on the adsorption behavior of the sorbent. Finally, the adsorptive behavior of the mesoporous material on phenol was followed pseudo-second-order kinetic adsorption model. In contrast, the adsorption equilibrium isotherm was better performed Langmuir isotherm model than the Freundlich isotherm model; in addition, the results also showed that the MAG–CTAB–KH550 had a better adsorption capacity and removal efficiency than MAG.

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“…The oxidant concentration played an important role related to the number of hydroxyl radicals during the Fenton oxidation process. 31 The inuence of H 2 O 2 concentration was investigated by varying initial H 2 O 2 concentration between 10 and 500 mM. Fig.…”

Section: Effect Of Some Parameters On CV and Mb Removal By Pm-fe/ni Wmentioning

confidence: 99%

Preparation of new adsorbent-supported Fe/Ni particles for the removal of crystal violet and methylene blue by a heterogeneous Fenton-like reaction

Liu

Sun

et al. 2019

RSC Adv.

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Magnetite/Fe-Al-montmorillonite as a Fenton catalyst with efficient degradation of phenol

Cited by 46 publications

References 44 publications

Adsorption of Diazo Dye from Aqueous Solutions by Magnetic Montmorillonite Composite

Adsorption of Diazo Dye from Aqueous Solutions by Magnetic Montmorillonite Composite

Adsorption Analyses of Phenol from Aqueous Solutions Using Magadiite Modified with Organo-Functional Groups: Kinetic and Equilibrium Studies

Preparation of new adsorbent-supported Fe/Ni particles for the removal of crystal violet and methylene blue by a heterogeneous Fenton-like reaction

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