Fe 3 O 4 -CeO 2 metal oxide nanocomposite as a Fenton-like heterogeneous catalyst for degradation of catechol

Gogoi, Aniruddha; Navgire, Madhukar E.; Sarma, Kamal; Gogoi, Parikshit

doi:10.1016/j.cej.2016.11.086

Cited by 127 publications

(31 citation statements)

References 43 publications

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“…This result could be possibly concerned with metal-ion loss from catalyst, which leads to the inconspicuous difference among different Fe/Mn ratio. Similar explanations were provided by Aniruddha et al [22] The Fe-Mn/NaY sg catalyst with Fe/Mn ratio of 2 yielded the highest COD removal efficiency (75.2%, Fig. 5)).…”

Section: Organic Compounds Analysis Of Raw Pulp Mill Effluentssupporting

confidence: 86%

Degradation of pulp mill wastewater by a heterogeneous Fenton-like catalyst Fe/Mn supported on zeolite

Wang¹,

Shia²,

Wang³

et al. 2018

Environ. Protect. Eng.

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A novel heterogeneous catalyst, Fe/Mn supported on NaY zeolite, was effectively applied for treating pulp mill effluents. The results of the wastewater quality analysis showed that aromatic structures were present in raw pulp mill effluents, which indicated the difficulty for biodegradation treatments. Two different catalysts were prepared by impregnation (Fe-Mn/NaYim) and sol-gel (Fe-Mn/NaYsg) methods, respectively. The Fe-Mn/NaYsg catalyst demonstrated higher COD removal efficiency and was more stable than the Fe-Mn/NaYim catalyst. The synergistic effects were found between Fe and Mn for COD removal. The highest COD removal efficiency (75.2%) was yielded with the Fe-Mn/NaYsg catalyst (Fe/Mn molar ratio of 2) with 4 mmol/dm 3 of H2O2 and 1.2 g/dm 3 of catalyst addition. A constant COD removal over time was obtained; the COD removal efficiency amounted to 45% after the Fe-Mn/NaYsg catalyst repeatedly degrading pulp mill effluents for five times. The distribution and transformation of the polarity and molecular weight (MW) of dissolved organic carbon (DOC) in the heterogeneous Fenton process were also studied. Experiments showed that the hydrophobic fraction comprised the largest fraction of DOC (60%) in raw wastewater and high MW molecules were transformed into low MW molecules after the heterogeneous Fenton process. This study broadened the application of the Fenton technology.

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Section: Organic Compounds Analysis Of Raw Pulp Mill Effluentssupporting

confidence: 86%

Degradation of pulp mill wastewater by a heterogeneous Fenton-like catalyst Fe/Mn supported on zeolite

Wang¹,

Shia²,

Wang³

et al. 2018

Environ. Protect. Eng.

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“…The fine morphology and the composition of the prepared Au/CeO 2 have been further characterized by HRTEM measurements. As shown in Figure (a) and (b), Au NPs are found to be encapsulated in CeO 2 matrix, and the lattice fringe of 0.31 nm [which is consistent with the (111) plane of CeO 2 ] and the lattice fringe of 0.23 nm [which is ascribed to the (111) plane of Au] are clearly observed . Furthermore, a porous structure has also been observed in the CeO 2 shell.…”

Section: Resultsmentioning

confidence: 88%

Constructing magnetic Fe₃O₄‐Au@CeO₂ hybrid nanofibers for selective catalytic degradation of organic dyes

Chen

Qiu

Zhong

et al. 2019

Applied Organom Chemis

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Au nanoparticles (Au NPs) play a vital role in heterogeneous catalytic reactions. However, pristine Au NPs usually suffer from poor selectivity and difficult recyclability. In this work, Fe 3 O 4 -Au@CeO 2 hybrid nanofibers were prepared via a simple one-pot redox reaction between HAuCl 4 and Ce (NO 3 ) 3 in the presence of Fe 3 O 4 nanofibers. CeO 2 shell was uniformly coated on the surface of Fe 3 O 4 nanofibers to form a unique core-shell structure, while Au NPs were encapsulated inside the CeO 2 shell. The as-prepared Fe 3 O 4 -Au@CeO 2 hybrid nanofibers have been proved to be positively surface charged due to the formation of CeO 2 shell, enabling them to be good candidates for predominant selective catalytic activity towards the degradation of negatively charged organic dyes. In addition, the Fe 3 O 4 -Au@CeO 2 hybrid nanofibers showed magnetic properties, offering them excellent recyclable usability. This work presents a facile and effective solution to prepare magnetic noble metal/ metal oxide hybrid nanomaterials with unique chemical structure and surface characteristic for promising applications in heterogeneous catalysis.

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“…The researchers studied the application of prepared catalyst by precipitation and co-precipitation method in the various field like color removal and recalcitrant organic compound degradation. Some examples of dye as model pollutant, and prepared catalyst are Ni1-xZnxFe2O4 and methylene blue [156][157][158] [163], orange G and Fe3O4/CeO2 composite [94], catechol and Fe3O4-CeO2 metal oxide [164], methyl orange and Ni-Fe(C2O4)x [165], Rhodamine B dye and Iron molybdate Fe2(MoO4)3 nanopowders [30], congo red and cobalt-copper oxalate and cobalt oxalate nanofibers [166], Phenol and Fe3O4/MWCNT [167], rhodamine B (RhB) and Al pillared bentonite-Fe3O4 nanocomposites (Fe3O4/Al-B) [168]. Table 5 shows the brief literature survey of previous research work in which catalyst was prepared by precipitation and co-precipitation (PPT and CO-PPT) method.…”

Section: Precipitation and Co-precipitation Methodsmentioning

confidence: 99%

A Review Paper on Heterogeneous Fenton Catalyst: Types of Preparation, Modification Techniques, Factors Affecting the Synthesis, Characterization, and Application in the Wastewater Treatment

Kumar

Mohapatra

Dharmadhikari

et al. 2019

Bull. Chem. React. Eng. Catal.

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This comprehensive review focuses on the different factors, modification in the synthesis method, characterization and application of heterogeneous catalyst in the wastewater treatment based on the Fenton process. The present review highlights the different catalyst preparation methods like wet impregnation method, hydrothermal method, sol-gel method, precipitation method and their application to treat different recalcitrant organic chemicals. Major heterogeneous catalyst synthesis methods were discussed with their excellent workability. The importance of modification through physical and chemical method was also reported. Different catalyst, pollutants and optimum parametric conditions available in the literature along with some relevant studies are summarized. The effect of factors like pH, calcination and some other modifiers on the synthesis and their efficiency in the wastewater treatment has been described. The important characterization of synthesized catalysts explaining their working efficiency has also been discussed. In the final section, the application of heterogeneous catalyst synthesized by different methods in the wastewater/effluent treatment has been investigated. The main aim of this review is to find out the influence of process parameters and catalytic method on degradation/decolorization of organic compounds present in industrial or synthetic wastewater. Copyright © 2020 BCREC Group. All rights reserved

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Fe 3 O 4 -CeO 2 metal oxide nanocomposite as a Fenton-like heterogeneous catalyst for degradation of catechol

Cited by 127 publications

References 43 publications

Degradation of pulp mill wastewater by a heterogeneous Fenton-like catalyst Fe/Mn supported on zeolite

Degradation of pulp mill wastewater by a heterogeneous Fenton-like catalyst Fe/Mn supported on zeolite

Constructing magnetic Fe₃O₄‐Au@CeO₂ hybrid nanofibers for selective catalytic degradation of organic dyes

A Review Paper on Heterogeneous Fenton Catalyst: Types of Preparation, Modification Techniques, Factors Affecting the Synthesis, Characterization, and Application in the Wastewater Treatment

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Fe 3 O 4 -CeO 2 metal oxide nanocomposite as a Fenton-like heterogeneous catalyst for degradation of catechol

Cited by 127 publications

References 43 publications

Degradation of pulp mill wastewater by a heterogeneous Fenton-like catalyst Fe/Mn supported on zeolite

Degradation of pulp mill wastewater by a heterogeneous Fenton-like catalyst Fe/Mn supported on zeolite

Constructing magnetic Fe3O4‐Au@CeO2 hybrid nanofibers for selective catalytic degradation of organic dyes

A Review Paper on Heterogeneous Fenton Catalyst: Types of Preparation, Modification Techniques, Factors Affecting the Synthesis, Characterization, and Application in the Wastewater Treatment

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Constructing magnetic Fe₃O₄‐Au@CeO₂ hybrid nanofibers for selective catalytic degradation of organic dyes