Facile fabrication of magnetic reduced graphene oxide-ZnFe2O4 composites with enhanced adsorption and photocatalytic activity

Shen, Junhai; Ma, Ge; Zhang, Jinmin; Quan, Weilei; Li, Liangchao

doi:10.1016/j.apsusc.2015.10.101

Cited by 67 publications

(16 citation statements)

References 58 publications

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“…In fact, it has been also demonstrated that graphene nanomaterials and their derivatives are promising adsorbents for the removal or the recovery of ionic pollutants (heavy metal ions and nonmetal ions) and hazardous organic dyes (methyl orange, methyl blue, rhodamine B, orange G, etc.) from aqueous solutions and gas pollutants, due to their large specific surface area and multiple active sites . The enrichment of both targeted adsorbates and photo‐generated active species (e.g., electrons, holes, hydroxyl radicals, and superoxide radicals) on the 2D RGO or GO materials can finally realize the improved photoredox activity.…”

Section: Photocatalysis‐related Properties Of Graphene and Its Derivamentioning

confidence: 99%

Graphene in Photocatalysis: A Review

Wageh

et al. 2016

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In recent years, heterogeneous photocatalysis has received much research interest because of its powerful potential applications in tackling many important energy and environmental challenges at a global level in an economically sustainable manner. Due to their unique optical, electrical, and physicochemical properties, various 2D graphene nanosheets-supported semiconductor composite photocatalysts have been widely constructed and applied in different photocatalytic fields. In this review, fundamental mechanisms of heterogeneous photocatalysis, including thermodynamic and kinetics requirements, are first systematically summarized. Then, the photocatalysis-related properties of graphene and its derivatives, and design rules and synthesis methods of graphene-based composites are highlighted. Importantly, different design strategies, including doping and sensitization of semiconductors by graphene, improving electrical conductivity of graphene, increasing eloectrocatalytic active sites on graphene, strengthening interface coupling between semiconductors and graphene, fabricating micro/nano architectures, constructing multi-junction nanocomposites, enhancing photostability of semiconductors, and utilizing the synergistic effect of various modification strategies, are thoroughly summarized. The important applications including photocatalytic pollutant degradation, H production, and CO reduction are also addressed. Through reviewing the significant advances on this topic, it may provide new opportunities for designing highly efficient 2D graphene-based photocatalysts for various applications in photocatalysis and other fields, such as solar cells, thermal catalysis, separation, and purification.

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Section: Photocatalysis‐related Properties Of Graphene and Its Derivamentioning

confidence: 99%

Graphene in Photocatalysis: A Review

Wageh

et al. 2016

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946

401

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“…Graphene oxide (GO) and reduced graphene oxide (rGO) are the most commonly used graphene because they show a high efficiency during water treatment. These abilities to adsorb pollutants are due to the presence of several surface functional groups like hydroxyl, carboxyl, and epoxy that function as adsorption sites that aid the removal of contaminants from the water system [ 202 , 203 ]. Graphene oxide (GO) is prepared via chemical functionalization of graphene through the following method; Brodie [ 204 ], Staudenmaier, Hoffman, and Hummer methods [ 205 ].…”

Section: Carbon-solid Supports In Photocatalytic Degradationmentioning

confidence: 99%

Pharmaceuticals and personal care products in water and wastewater: a review of treatment processes and use of photocatalyst immobilized on functionalized carbon in AOP degradation

2020

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The presence of emerging contaminants such as pharmaceutical and personal care products in many aqueous matrices have been reported. One of such matrix is streams of wastewater, including wastewater treatment plants inflows and outflows and wastewater flow by-passing wastewater treatment plants. Their persistence arises from their resistant to breakdown, hence they may remain in the environment over long time, with a potential to cause adverse effects including endocrine disruption, gene toxicity, the imposition of sex organs, antibiotic resistance and many others in some aquatic organisms exposed to arrays of residues of pharmaceutical and personal care products. Among the treatment techniques, advanced oxidation processes have been reported to be a better technique through which these PPCPs can be degraded in the WWTPs. Heterogeneous photocatalysis using various photocatalyst immobilized on solid support such as activated carbon, graphene and carbon nanotubes in AOPs have been shown to be a viable and efficient method of PPCPs degradation. This is because, the performance of most WWTPs is limited since they were not designed to degrade toxic and recalcitrant PPCPs. This review highlight the occurrence, concentration of PPCPs in wastewater and the removal efficiency of heterogeneous photocatalysis of TiO2 immobilized on solid supports.

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“…Mesoporous SiO 2 -based materials possess high surface area, large pore volume, tunable pore sizes, stable and interconnected frameworks, 13,14 as well as active pore surfaces for easy modication or functionalization, meeting the requirements as promising adsorbents. 15,16 However, most of these asprepared materials demonstrate limited adsorption efficiency. Thus, it is necessary to attach functional components on the pore surface or framework to generate active adsorption sites.…”

Section: Introductionmentioning

confidence: 99%

The synergetic effect of a structure-engineered mesoporous SiO₂–ZnO composite for doxycycline adsorption

Huang

Zhang

et al. 2019

RSC Adv.

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Facile fabrication of magnetic reduced graphene oxide-ZnFe2O4 composites with enhanced adsorption and photocatalytic activity

Cited by 67 publications

References 58 publications

Graphene in Photocatalysis: A Review

Graphene in Photocatalysis: A Review

Pharmaceuticals and personal care products in water and wastewater: a review of treatment processes and use of photocatalyst immobilized on functionalized carbon in AOP degradation

The synergetic effect of a structure-engineered mesoporous SiO₂–ZnO composite for doxycycline adsorption

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Facile fabrication of magnetic reduced graphene oxide-ZnFe2O4 composites with enhanced adsorption and photocatalytic activity

Cited by 67 publications

References 58 publications

Graphene in Photocatalysis: A Review

Graphene in Photocatalysis: A Review

Pharmaceuticals and personal care products in water and wastewater: a review of treatment processes and use of photocatalyst immobilized on functionalized carbon in AOP degradation

The synergetic effect of a structure-engineered mesoporous SiO2–ZnO composite for doxycycline adsorption

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The synergetic effect of a structure-engineered mesoporous SiO₂–ZnO composite for doxycycline adsorption