A combustion synthesis route for magnetically separable graphene oxide–CuFe<sub>2</sub>O<sub>4</sub>–ZnO nanocomposites with enhanced solar light-mediated photocatalytic activity

Kumar, Aniket; Rout, Lipeeka; Achary, L. Satish K.; Mohanty, Sangram Keshari; Dash, Priyabrat

doi:10.1039/c7nj02070h

Cited by 72 publications

(21 citation statements)

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“…All the XRD peaks are well indexed to MgFO, CaFO, BaFO, CuFO, and ZnFO according to JCPDS nos. 73‐1720, 32‐0168, 96‐100‐8842, 25‐0283, and 01‐1108, respectively …”

Section: Resultsmentioning

confidence: 99%

Enhanced photodegradation of methylene blue with alkaline and transition‐metal ferrite nanophotocatalysts under direct sun light irradiation

Ali

Zada

Zahid

et al. 2018

J Chinese Chemical Soc

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It is highly desired to synthesize low‐cost photocatalysts for the degradation of colored dyes to safeguard our environment for the future generations. Here, we report an extremely efficient and low‐cost synthesis of alkaline earth and transition‐metal ferrite photocatalysts (MgFe2O4, CaFe2O4, BaFe12O19, CuFe2O4, and ZnFe2O4) from their chloride salts and their applications for the degradation of methylene blue (MB) dye under UV–visible and direct sunlight irradiation. The as‐prepared photocatalysts displayed enhanced photoactivities under both conditions of irradiation. After calcination at 600°C, the photocatalytic degradation increased significantly, and 96 and 85% MB was removed with ZnFe2O4 under UV–visible and direct sunlight irradiation, respectively. Moreover, large amounts of hydroxyl free radicals were produced under both irradiation conditions, which participated in the degradation of MB. The enhanced photodegradation activities of these photocatalysts are attributed to their extended visible light absorption and low bandgaps. This work will provide a feasible route to the synthesis of efficient and low‐cost photocatalysts to utilize sunlight for environmental remediation.

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“…All the XRD peaks are well indexed to MgFO, CaFO, BaFO, CuFO, and ZnFO according to JCPDS nos. 73‐1720, 32‐0168, 96‐100‐8842, 25‐0283, and 01‐1108, respectively …”

Section: Resultsmentioning

confidence: 99%

Enhanced photodegradation of methylene blue with alkaline and transition‐metal ferrite nanophotocatalysts under direct sun light irradiation

Ali

Zada

Zahid

et al. 2018

J Chinese Chemical Soc

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“…Use of graphene/BiVO 4 /TiO 2 nanocomposite, Ag/RGO/ZnO, Ag-Cu 2 O/rGO and graphene oxide-CuFe 2 O 4 -ZnO nanocomposites as photocatalysts for environmental remediation have been reported [30][31][32][33]. In specific, reduced graphene oxide (rGO) based ternary nanocomposites have great superiority than binary composites when used as photocatalysts.…”

Section: Introductionmentioning

confidence: 99%

Crumpled sheet like graphene based WO3-Fe2O3 nanocomposites for enhanced charge transfer and solar photocatalysts for environmental remediation

Priyadharsan

Vasanthakumar

Shanavas

et al. 2019

Applied Surface Science

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The combination of two or more metal oxides onto graphene sheets with even distribution is projected to enhanced charge transfer properties in photocatalytic applications. We report, tungsten oxide (WO 3) with iron oxide (Fe 2 O 3) nanoparticles grown on graphene sheets via a facile economical one pot hydrothermal method and consequently characterized by standard analytical techniques. Synthesized Fe 2 O 3 with WO 3 nanoparticles were well ornamented on surface of the graphene sheets which have a significant charge transfer properties. The resulting hybrid WO 3-Fe 2 O 3-rGO (WFG) nanocomposites showed enhanced photocatalytic, heavy metal removal and antibacterial activities. The superior photocatalytic removal efficiencies were observed for the removal of rhodamine B (~94%) and methylene blue dyes (~98%) under solar light irradiation. The antibacterial activity of WFG nanocomposites were performed against Escherichia coli (E.coli) and Staphylococcus aureus (S.aureus) as models for Gram-negative and Gram-positive bacteria. The outcome of the results have an intellectual effect on the use of WFG nanocomposites to address the upcoming energy and environment issues.

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“…In general, the oxides derived from SCS have a higher surface area than counterparts synthesized from ceramic, solid-state reaction (SSR) routes; and this factor is reflected in the much higher photoactivity of the SCS oxides. Thus the photodegradation of MB using SCS-CuFe 2 O 4 reached almost 100% in 30 min while only 25.9% was degraded using SSR sample in the similar conditions [23]. This can be rationalized on the small particle size (SCS: 100 nm, SSR: 1-3 μm), and consequently, higher surface area of the SCS sample (SCS: 79.3 m 2 /g, SSR: 2.2 m 2 /g).…”

Section: Photoelectrochemical and Photocatalytic Applications Of Scs-mentioning

confidence: 82%

Solution Combustion Synthesis of Complex Oxide Semiconductors

Hossain

Kecsenovity

Varga

et al. 2018

Int. J Self-Propag. High-Temp. Synth.

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This is a perspective of the role that combustion synthesis, specifically solution combustion synthesis, has played in the development of ternary and quaternary metal oxide semiconductors, and materials derived from these compounds such as composites, solid solutions, and doped samples. The attributes of materials, collectively termed 'complex oxides' within the context of this discussion, are discussed in terms of their applicability in the generation of solar fuels from water splitting and CO 2 reduction, and environmental pollution remediation via heterogeneous photocatalysis.

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A combustion synthesis route for magnetically separable graphene oxide–CuFe₂O₄–ZnO nanocomposites with enhanced solar light-mediated photocatalytic activity

Abstract: A novel GO–CuFe2O4–ZnO ternary nanocomposite has been designed as an efficient photocatalyst for the degradation of four toxic organic pollutants.

Cited by 72 publications

References 100 publications

Enhanced photodegradation of methylene blue with alkaline and transition‐metal ferrite nanophotocatalysts under direct sun light irradiation

Enhanced photodegradation of methylene blue with alkaline and transition‐metal ferrite nanophotocatalysts under direct sun light irradiation

Crumpled sheet like graphene based WO3-Fe2O3 nanocomposites for enhanced charge transfer and solar photocatalysts for environmental remediation

Solution Combustion Synthesis of Complex Oxide Semiconductors

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A combustion synthesis route for magnetically separable graphene oxide–CuFe2O4–ZnO nanocomposites with enhanced solar light-mediated photocatalytic activity

Abstract: A novel GO–CuFe2O4–ZnO ternary nanocomposite has been designed as an efficient photocatalyst for the degradation of four toxic organic pollutants.

Cited by 72 publications

References 100 publications

Enhanced photodegradation of methylene blue with alkaline and transition‐metal ferrite nanophotocatalysts under direct sun light irradiation

Enhanced photodegradation of methylene blue with alkaline and transition‐metal ferrite nanophotocatalysts under direct sun light irradiation

Crumpled sheet like graphene based WO3-Fe2O3 nanocomposites for enhanced charge transfer and solar photocatalysts for environmental remediation

Solution Combustion Synthesis of Complex Oxide Semiconductors

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A combustion synthesis route for magnetically separable graphene oxide–CuFe₂O₄–ZnO nanocomposites with enhanced solar light-mediated photocatalytic activity