Synthesis of graphene/Fe3O4/NiO magnetic nanocomposites and its application in photocatalytic degradation the organic pollutants in wastewater

Zhao, Guoping; Mo, Zunli; Zhang, Ping; Wang, Bo; Zhu, Xiaogang; Guo, Ruibin

doi:10.1007/s10934-015-0002-1

Cited by 23 publications

(5 citation statements)

References 44 publications

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“…Initial works on ceramic/graphene composite catalysts were published in 2015 by Vinothkannan et al [ 215 ] and Zhao et al [ 216 ], where Fe 3 O 4 /rGO [ 215 ] and Fe 3 O 4 /rGO/NiO [ 216 ] composites were developed for the successful photocatalytic degradation of dye molecules, such as methylene blue (Fe 3 O 4 /rGO), p-nitrophenol and rhodamine B (Fe 3 O 4 /rGO/NiO). The large surface area, adsorptive efficiency and numerous catalytic active sites provided by rGO enhanced the degradation of these dyes.…”

Section: Catalytic Applications Of Ceramic/graphene Compositesmentioning

confidence: 99%

Applications of Ceramic/Graphene Composites and Hybrids

et al. 2021

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Research activity on ceramic/graphene composites and hybrids has increased dramatically in the last decade. In this review, we provide an overview of recent contributions involving ceramics, graphene, and graphene-related materials (GRM, i.e., graphene oxide, reduced graphene oxide, and graphene nanoplatelets) with a primary focus on applications. We have adopted a broad scope of the term ceramics, therefore including some applications of GRM with certain metal oxides and cement-based matrices in the review. Applications of ceramic/graphene hybrids and composites cover many different areas, in particular, energy production and storage (batteries, supercapacitors, solar and fuel cells), energy harvesting, sensors and biosensors, electromagnetic interference shielding, biomaterials, thermal management (heat dissipation and heat conduction functions), engineering components, catalysts, etc. A section on ceramic/GRM composites processed by additive manufacturing methods is included due to their industrial potential and waste reduction capability. All these applications of ceramic/graphene composites and hybrids are listed and mentioned in the present review, ending with the authors’ outlook of those that seem most promising, based on the research efforts carried out in this field.

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Section: Catalytic Applications Of Ceramic/graphene Compositesmentioning

confidence: 99%

Applications of Ceramic/Graphene Composites and Hybrids

et al. 2021

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“…The presence of NiO reduces the properties of Fe3O4/SiO2. This is related to the surface effect and anisotropy of the particles (Zhao et al, 2015;Sadeghi et al, 2012). The magnetization curve shows a mixture of ferromagnetic and superparamagnetic properties.…”

Section: Catalyst Characterizationmentioning

confidence: 94%

Synthesis of Fe3O4/SiO2/NiO magnetic composite: Evaluation of its catalytic activity for methylene blue degradation

2022

Global NEST: The International Journal

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<p>Photocatalytic degradation for wastewater treatment is a method that has recently attracted attention. In this research, a synthesized composite of Fe3O4/SiO2/NiO with magnetic properties was used for the photocatalytic degradation of methylene blue dye under UV light. Furthermore, the composites were characterized using XRD, FTIR, BET surface area, SEM-EDS, VSM, and UV-DRS. The results showed that the Fe3O4/SiO2/NiO composite is magnetic with a saturation magnetization of 53.84 emu/g. The Fe3O4/SiO2/NiO composite has a surface area of 128.8 m2/g, large than Fe3O4 and Fe3O/SiO2. The Fe3O4/SiO2/NiO composite has a band gap of 2.83 eV. The photocatalytic activity of Fe3O4/SiO2/NiO composite against the methylene blue dye exhibited high degradation efficiency reaching 98.51 %. The pseudo-first-order is appropriate to describe the kinetics model of photocatalytic degradation on methylene blue dye. The decrease in the degradation efficiency of the Fe3O4/SiO2/NiO composite after 5 times for the photocatalytic degradation of methylene blue dye from 98.02 % to 94.97 % indicates that the catalyst has high stability. Considering these results, the Fe3O4/SiO2/NiO composites could be used as a potential catalyst in industrial wastewater.</p>

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“…Although enhanced recyclability has been achieved by most PODS photocatalysts, the recovery process is still restrained by the repeated, time‐consuming powder collection and washing procedure [121–123] . Therefore, current material synthetic methods need to be optimized on the materials’ magnetic, hydrophile–lipophile, and particularly free‐standing properties, which can allow them to be easily separated from the pollutant solutions via electrical/magnetic fields, natural sedimentation, and direct collection [124–126] . In short, for future PODS evaluation, we should not only emphasize their cycling performance but pay attention to the easy‐to‐recycle recovery techniques, which would provide more constructive guidance for practical application.…”

Section: Solutions To Podsmentioning

confidence: 99%

Desulfurization through Photocatalytic Oxidation: A Critical Review

et al. 2020

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Fuel oil, the most important strategic resource, has been widely used in industrial applications. However, the sulfur‐containing compounds in fuel oil also present humanity with huge environmental issues and health concerns due to the hazardous combustion waste. To address this problem, the low vulcanization of fuel production technology has been intensively explored. Compared with traditional hydrodesulfurization technology, the newly emerged photocatalytic desulfurization has the advantages of milder operating conditions, lower energy consumption, and higher efficiency, holding great prospect to achieve deep desulfurization. Though great efforts have been made, the desulfurization catalysts still suffer from inferior light absorption, fast recombination of photocarriers, and poor structure modification. This Review summarizes recent development of photocatalytic desulfurization, including the desulfurization principle, current desulfurization challenges, and corresponding solutions. Particularly, the roles of defect engineering, hybrid coupling, and structure modifications in the enhancement of photocatalytic performance are emphasized. In addition, the photocatalytic desulfurization mechanism is also introduced with the .OH and .O2− radicals as main active species. Finally, some perspectives on the photocatalytic desulfurization are provided, which can further optimize the desulfurization efficiency and guide future photocatalyst design.

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Synthesis of graphene/Fe3O4/NiO magnetic nanocomposites and its application in photocatalytic degradation the organic pollutants in wastewater

Cited by 23 publications

References 44 publications

Applications of Ceramic/Graphene Composites and Hybrids

Applications of Ceramic/Graphene Composites and Hybrids

Synthesis of Fe3O4/SiO2/NiO magnetic composite: Evaluation of its catalytic activity for methylene blue degradation

Desulfurization through Photocatalytic Oxidation: A Critical Review

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