Fabrication of ternary Mn doped ZnO nanoparticles grafted on reduced graphene oxide (RGO) sheet as an efficient solar light driven photocatalyst

Labhane, Prakash K.; Patle, L. B.; Sonawane, Gunvant H.; Sonawane, Shirish H.

doi:10.1016/j.cplett.2018.08.066

Cited by 57 publications

(12 citation statements)

References 46 publications

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“…58,63 In addition, the photocatalytic efficiency of the CZS-25 NC is practically higher compared to the previously reported studies, as presented in Table 5. [64][65][66][67][68][69][70] Hence, the CZS-25 NC is the most effective composite for the photocatalytic dye degradation and was further employed for the recycling study.…”

Section: Surface Area Analysismentioning

confidence: 99%

Highly efficient visible light active Cu–ZnO/S-g-C₃N₄ nanocomposites for efficient photocatalytic degradation of organic pollutants

et al. 2021

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Section: Surface Area Analysismentioning

confidence: 99%

Highly efficient visible light active Cu–ZnO/S-g-C₃N₄ nanocomposites for efficient photocatalytic degradation of organic pollutants

et al. 2021

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“…) and hydroxyl radicals (.OH), which are capable of degrading various hazardous organic compounds [10][11][12][13][14][15] .…”

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confidence: 99%

“…Graphene is known to be a zero bandgap material with low Fermi level, therefore; it acts as an electron storage which receives electrons from the conduction band of the photocatalyst which in turn limits the recombination of electrons and holes. As a consequence, the photocatalytic performance could be boosted 15,[42][43][44][45][46] . Yu et al in their study showed that incorporation of graphene into MoS 2 nanosheets caused a significant effect on the activity of MoS 2 , and the GR/MoS 2 hetero-structures showed more than twice photocatalytic performance for H 2 generation than bare MoS 2 nanosheets 47 .…”

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confidence: 99%

Developing the Ternary ZnO Doped MoS2 Nanostructures Grafted on CNT and Reduced Graphene Oxide (RGO) for Photocatalytic Degradation of Aniline

Ghasemipour

Fattahi

Rasekh

et al. 2020

Sci Rep

157

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Transition metal sulfide semiconductors have achieved significant attention in the field of photocatalysis and degradation of pollutants. MoS 2 with a two dimensional (2D) layered structure, a narrow bandgap and the ability of getting excited while being exposed to visible light, has demonstrated great potential in visible-light-driven photocatalysts. However, it possesses fast-paced recombination of charges. in this study, the coupled MoS 2 nanosheets were synthesized with Zno nanorods to develop the heterojunctions photocatalyst in order to obtain superior photoactivity. the charge transfer in this composite is not adequate to achieve desirable activity. therefore, heterojunction was modified by reduced graphene oxide (RGO) nanosheets and carbon nanotubes (cnts) to develop the RGo/Zno/MoS 2 and cnts/Zno/MoS 2 ternary nanocomposites. the structure, morphology, composition, optical and photocatalytic properties of the as-fabricated samples were characterized through X-ray diffraction (XRD), Fourier Transform Infrared (FTIR), Field Emission Scanning electron Microscopy (feSeM), transmission electron Microscopy (teM), energy-Dispersive X-ray (eDX), elemental mapping, photoluminescence (pL), Ultraviolet-Visible spectroscopy (UV-ViS), and Brunauer-emmett-teller (Bet) techniques. the photo-catalytic performance of all samples was evaluated through photodegradation of aniline in aqueous solution. the combination of RGo or cnts into the Zno/MoS 2 greatly promoted the catalytic activity. However, the resulting RGo/Zno/MoS 2 ternary nanocomposites showed appreciably increased catalytic performance, faster than that of cnts/Zno/MoS 2. charge carrier transfer studies, the Bet surface area analysis, and the optical studies confirmed this superiority. The role of operational variables namely, solution pH, catalyst dosage amount, and initial concentration of aniline was then investigated for obtaining maximum degradation. complete degradation was observed, in the case of pH = 4, catalyst dosage of 0.7 g/L and aniline concentration of 80 ppm, and light intensity of 100 W. According to the results of trapping experiments, hydroxyl radical was found to be the main active species in the photocatalytic reaction. Meanwhile, a plausible mechanism was proposed for describing the degradation of aniline upon ternary composite. Moreover, the catalyst showed excellent reusability and stability after five consecutive cycles due to the synergistic effect between its components. Total-Organic-Carbon concentration (TOC) results suggested that complete mineralization of aniline occurred after 210 min of irradiation. Finally, a real petrochemical wastewater sample was evaluated for testing the catalytic ability of the as-fabricated composites in real case studies and it was observed that the process successfully quenched 100% and 93% of Chemical Oxygen Demand (COD) and TOC in the wastewater, respectively.

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“…The ternary composite is highly efficient against the photocatalytic oxidation of rhodamine B and methylene blue. For photocatalytic oxidation of rhodamine B and methylene blue, the ternary composite has a high efficiency [132]. Wide band gaps are present in most photocatalysts and cause them to be active only in the UV region.…”

Section: Air and Water Purificationmentioning

confidence: 99%

Advances in metal-based vanadate compound photocatalysts: synthesis, properties and applications

Akhoondi

Feleni

Bethi³

et al. 2021

Synth. Sinter.

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Among the ongoing research on photocatalysis under visible-light, it has been shown that doped or hybrid catalysts are more active than a single catalyst alone. However, problems including visible light absorption, a low quantity of energetic sites on surfaces, and rapid recombination of the photo-electron hole pair produced by light have prohibited photocatalysts from being used in a practical and widespread manner. To overcome these problems, synthesis of nanostructure hybrid catalyst using several methods has attracted much attention. Several procedures have been suggested for the preparation of photocatalysts with the desired structure and morphology. Preparation methods similar to partial modification may lead to diverse structures and qualities. In this regard, the development of efficient, low-cost photocatalysts and rapid synthesis is the most important issues that should be considered. This review discusses various methods and mechanisms that work with the modification of vanadium compounds as photocatalysts to progress their photocatalytic efficiency. In addition, the effects of synthesis temperature, solution pH and concentration on the photocatalytic performance are also described in detail.

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Fabrication of ternary Mn doped ZnO nanoparticles grafted on reduced graphene oxide (RGO) sheet as an efficient solar light driven photocatalyst

Cited by 57 publications

References 46 publications

Highly efficient visible light active Cu–ZnO/S-g-C₃N₄ nanocomposites for efficient photocatalytic degradation of organic pollutants

Highly efficient visible light active Cu–ZnO/S-g-C₃N₄ nanocomposites for efficient photocatalytic degradation of organic pollutants

Developing the Ternary ZnO Doped MoS2 Nanostructures Grafted on CNT and Reduced Graphene Oxide (RGO) for Photocatalytic Degradation of Aniline

Advances in metal-based vanadate compound photocatalysts: synthesis, properties and applications

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Fabrication of ternary Mn doped ZnO nanoparticles grafted on reduced graphene oxide (RGO) sheet as an efficient solar light driven photocatalyst

Cited by 57 publications

References 46 publications

Highly efficient visible light active Cu–ZnO/S-g-C3N4 nanocomposites for efficient photocatalytic degradation of organic pollutants

Highly efficient visible light active Cu–ZnO/S-g-C3N4 nanocomposites for efficient photocatalytic degradation of organic pollutants

Developing the Ternary ZnO Doped MoS2 Nanostructures Grafted on CNT and Reduced Graphene Oxide (RGO) for Photocatalytic Degradation of Aniline

Advances in metal-based vanadate compound photocatalysts: synthesis, properties and applications

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Highly efficient visible light active Cu–ZnO/S-g-C₃N₄ nanocomposites for efficient photocatalytic degradation of organic pollutants

Highly efficient visible light active Cu–ZnO/S-g-C₃N₄ nanocomposites for efficient photocatalytic degradation of organic pollutants