Flower like SnO2-Fe2O3-rGO ternary composite as highly efficient visible light induced photocatalyst for the degradation of organic pollutants from contaminated water

Botsa, Sathish Mohan; Naidu, G. Parasuram; Ravichandra, M.; Rani, Savita; Anjaneyulu, R. Balaji; Ramana, Ch. V.

doi:10.1016/j.jmrt.2020.08.087

Cited by 38 publications

(6 citation statements)

References 36 publications

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“…Figure explored Raman spectra of Fe 2 O 3 , Fe 2 O 3 /rGO, and Fe 2 O 3 /N,S-rGO nanocomposites. The peak observed at 221 cm –1 correlated to the A 1g symmetry, whereas peaks detected at 288, 401, 484, and 605 cm –1 correlated to the E g symmetry, and the peak observed at 665 cm –1 correlated to disorder symmetry . Moreover, the high intensity peak observed at 1315 cm –1 correlated to the hematite phase structure of Fe 2 O 3 .…”

Section: Resultsmentioning

confidence: 95%

“…The Scherrer equation is as follows: D = kλ/β cos θ, where k denotes the shape factor (0.9), λ is the Xray wavelength, β is the full width at half maximum (fwhm) of the peak, and θ is the diffraction angle (radians The peak observed at 221 cm −1 correlated to the A 1g symmetry, whereas peaks detected at 288, 401, 484, and 605 cm −1 correlated to the E g symmetry, and the peak observed at 665 cm −1 correlated to disorder symmetry. 29 Moreover, the high intensity peak observed at 1315 cm −1 correlated to the hematite phase structure of Fe 2 O 3 . In other words, the characteristic band at 1315 cm −1 may appear as a result of the two magnon scattering in the structure.…”

Section: Synthesis Of Fe 2 O 3 and Its Carbonmentioning

confidence: 93%

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Construction of Fe₂O₃ Nanoparticles Decorated for a Highly Efficient Oxygen Evolution Reaction Activity

Srinivasan,

Rathinam,

Ganesan

et al. 2023

Energy Fuels

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Fossil fuels are going out of stock as a result of population and industrial growth, and the uptake of fossil fuels has also affected the atmosphere, causing pollution and other defects. Over the past few years, researchers focused on fuels from renewable sources that are unharmful to humans and the Earth’s atmosphere. Constructing lucrative and highly competent electrocatalysts is still a challenging task in the oxygen evolution reaction (OER) activity. In this study, we have synthesized Fe2O3 with N- and S-doped reduced graphene oxide (rGO) via the co-precipitation technique subsequent to the annealing procedure. The formation of rhombohedral phase Fe2O3 spherical nanoparticles on N- and S-doped rGO has been examined. The introduction of N- and S-doped rGO has not only reduced the agglomeration of the particles and particle size but also facilitated the electronic structure. As a result, the Fe2O3/N- and S-doped rGO nanocomposite requires only 250 mV to attain 10 mA/cm2 and the Tafel slope value of 115 mV/dec in an alkaline medium. With the benefit of the presence of N- and S-doped graphene sheets, charge-transfer resistance of Fe2O3/N and S rGO was lower in 24.9 Ω and also exhibited a large electrochemical surface area of 110 cm2. Therefore, our findings suggest that iron oxide decorated in a carbon matrix could efficiently enhance the OER activity to accomplish alkaline water splitting.

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Section: Resultsmentioning

confidence: 95%

Section: Synthesis Of Fe 2 O 3 and Its Carbonmentioning

confidence: 93%

Construction of Fe₂O₃ Nanoparticles Decorated for a Highly Efficient Oxygen Evolution Reaction Activity

Srinivasan,

Rathinam,

Ganesan

et al. 2023

Energy Fuels

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“…Compared to individual compounds, ternary composite peaks were shifted slightly at lower positions, the intensity of the diffracted peak decreased and broadened the peak width was based on the GO addition [59]. The intensity of the rGO/TiO2/ZnO ternary composite's diffracted peaks was decreased and the width of the peak broadened when the amount of GO increased in the composite, which signifies the interaction of rGO in the TiO2/ZnO composite.…”

Section: Consmentioning

confidence: 93%

“…The ionic liquid is employed as a co-solvent with water or an organic solvent in the iono-thermal process, which also involves heat treatment [57,58]. Botsa et al [59] synthesized SnO2-Fe2O3-rGO ternary composite through the hydrothermal method. Firstly, tin chloride (2 mmol), NaOH (0.1 mmol) was transferred into an autoclave at 190 °C for 22 h. 0.01 M of iron nitrate, 50 mL of ethanol, 0.5 g of SnO2 powder were and with an appropriate amount of GO placed on a hot plate at 70 °C for 10 h for the ternary composite preparation and finally calcined at 300 °C for 6 h. M. Amarnath et al [60] have prepared rGO/Mn3O4/V2O5 ternary composite by hydrothermal route.…”

Section: Hydrothermal Routementioning

confidence: 99%

Brief review on carbon derivatives based ternary metal oxide composite electrode materials for lithium-ion batteries

Pavitra¹,

Soni

Praveen

et al. 2013

J. Electrochem. Sci. Eng.

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Revolutionized lithium-ion batteries (LIB) have taken a very important role in our day today life by powering all sorts of electric devices. The selection of electrode materials is very important, which impacts the electrochemical performance of LIBs. Advancements in the electrode materials and synthesis procedure greatly influence the electrochemical performance. This review discusses the carbon derivatives based ternary composite as electrode materials. A detailed explanation of the ternary electrode materials synthesis and spectroscopic, microscopic and electrochemical analysis of LIBs has been carried out in this study. Ternary composites are composed of highly conducting carbon derivatives, which are incorporated with SnO2/ZnO/MoO3/SiOx and additionally any one metal oxide. Carbon derivatives-based ternary metal oxide composites can exhibit enhanced electrochemical results based on their heterostructures. The availability of more active sites contributes the reversible topotactic reactions during the charging-discharging process due to the porosity and other unique structures of different dimensions of the electrode materials. Concepts and strategies can extend the focus on developing the ternary metal oxides for high-performance LIBs.

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“…WO 3 , is an n-type semiconductor, activated under visible light irradiation having small bandgap (2.4–2.8 eV) that makes it a suitable catalyst for degrading organic compounds ( Yadav et al, 2021 ). Further, Fe 2 O 3 is another example of n-type semiconductor with narrow bandgap energy of 2.0–2.2 eV and it exhibits a wide photoelectrochemical response that is useful for photocatalysis ( Botsa et al, 2020 ). In the case of CuO, it is a p-type semiconductor material with good optical and catalytic properties.…”

Section: Graphene Oxide/metal Oxide Nanocomposites As Photocatalystmentioning

confidence: 99%

Synthesis, Characterization, and Photocatalytic Activities of Graphene Oxide/metal Oxides Nanocomposites: A Review

et al. 2021

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Sustainable water processing techniques have been extensively investigated and are capable of improving water quality. Among the techniques, photocatalytic technology has shown great potential in recent years as a low cost, environmentally friendly and sustainable technology. However, the major challenge in the industrial development of photocatalyst technology is to develop an ideal photocatalyst which must have high photocatalytic activity, a large specific surface area, harvest sunlight and shows recyclability. Keeping these views, the present review highlighted the synthesis approaches of graphene/metal oxide nanocomposite, characterization techniques and their prominent applications in photocatalysis. Various parameters such as photocatalyst loading, structure of photocatalyst, temperature, pH, effect of oxidizing species and wavelength of light were addressed which could affect the rate of degradation. Moreover, the formation of intermediates during photo-oxidation of organic pollutants using these photocatalysts is also discussed. The analysis concluded with a synopsis of the importance of graphene-based materials in pollutant removal. Finally, a brief overview of the problems and future approaches in the field is also presented.

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Flower like SnO2-Fe2O3-rGO ternary composite as highly efficient visible light induced photocatalyst for the degradation of organic pollutants from contaminated water

Cited by 38 publications

References 36 publications

Construction of Fe₂O₃ Nanoparticles Decorated for a Highly Efficient Oxygen Evolution Reaction Activity

Construction of Fe₂O₃ Nanoparticles Decorated for a Highly Efficient Oxygen Evolution Reaction Activity

Brief review on carbon derivatives based ternary metal oxide composite electrode materials for lithium-ion batteries

Synthesis, Characterization, and Photocatalytic Activities of Graphene Oxide/metal Oxides Nanocomposites: A Review

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Flower like SnO2-Fe2O3-rGO ternary composite as highly efficient visible light induced photocatalyst for the degradation of organic pollutants from contaminated water

Cited by 38 publications

References 36 publications

Construction of Fe2O3 Nanoparticles Decorated for a Highly Efficient Oxygen Evolution Reaction Activity

Construction of Fe2O3 Nanoparticles Decorated for a Highly Efficient Oxygen Evolution Reaction Activity

Brief review on carbon derivatives based ternary metal oxide composite electrode materials for lithium-ion batteries

Synthesis, Characterization, and Photocatalytic Activities of Graphene Oxide/metal Oxides Nanocomposites: A Review

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Construction of Fe₂O₃ Nanoparticles Decorated for a Highly Efficient Oxygen Evolution Reaction Activity

Construction of Fe₂O₃ Nanoparticles Decorated for a Highly Efficient Oxygen Evolution Reaction Activity