Green synthesis and characterization of Zinc and Copper oxides nanocomposite using Phyllanthus emblica extracts and its antibacterial and antioxidant properties

Kumari, Nitu; Sudharsan, V.; Muthu Kutty, T.; Jayan, Neethu; Laxmi Deepak Bhatlu, M.

doi:10.1016/j.matpr.2023.06.287

Cited by 3 publications

(1 citation statement)

References 22 publications

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“…Additionally, scanning electron microscopy (SEM) analysis displays the uniform distribution of spherical particles with a smooth surface and rough porous structures, providing more sites for dye adsorption and enhancing photocatalytic activity. Energy dispersive spectroscopy (EDS) analysis detects the presence of copper, titanium, oxygen, and other elements in the nanocomposite, confirming the successful synthesis of CuO@A-TiO 2 /Ro-TiO 2 14 .…”

Section: Resultsmentioning

confidence: 71%

Sustainable green synthesis and characterization of nanocomposites for synergistic photocatalytic degradation of Reactive Orange 16 in textile wastewater using CuO@A-TiO2/Ro-TiO2

Nassar,

Elfiky,

El-Sawaf

et al. 2024

Sci Rep

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This paper explores the photocatalytic degradation of Reactive Orange 16 (RO16) dye in textile wastewater employing a novel CuO@A-TiO2/Ro-TiO2 nanocomposite. The nanocomposite was synthesized via a hydrothermal technique, resulting in a monoclinic phase of leaf-shaped CuO loaded on a hexagonal wurtzite structure of rod-shaped ZnO, as confirmed by FE-SEM and XRD analyses. Optical experiments revealed band gap energies of 1.99 eV for CuO, 2.19 eV for ZnO, and 3.34 eV for the CuO@A-TiO2/Ro-TiO2 nanocomposite. Photocatalytic degradation experiments showcased complete elimination of a 100 mg/L RO16 solution (150 mL) after 120 min of UV light illumination and 100 min of sunlight illumination, emphasizing the nanocomposite's efficiency under both light sources. The study further delves into the application of the CuO@A-TiO2/Ro-TiO2 nanocomposite for the degradation of actual textile wastewater samples under sunlight irradiation. The results underscore the nanocomposite's remarkable efficacy in treating RO16 in textile wastewater, positioning it as a promising candidate for sustainable and efficient wastewater treatment applications. This research contributes valuable insights into the development of advanced photocatalytic materials for textile dye degradation in wastewater treatment.

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Section: Resultsmentioning

confidence: 71%

Sustainable green synthesis and characterization of nanocomposites for synergistic photocatalytic degradation of Reactive Orange 16 in textile wastewater using CuO@A-TiO2/Ro-TiO2

Nassar,

Elfiky,

El-Sawaf

et al. 2024

Sci Rep

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Core/Shell-Like Magnetic Structure and Optical Properties in CuO Nanoparticles Synthesized by Green Route

Mishra,

Dwivedi,

Dara

et al. 2024

ACS Sustainable Resour. Manage.

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We report a core/shell-like magnetic structure at room temperature in nonstoichiometric CuO nanoparticles (NPs) synthesized by a green route using Phyllanthus niruri whole plant extract over leaf extract. The XRD pattern analyzed by Rietveld refinement confirms single phase formation of CuO NPs crystals in a monoclinic structure with space group C2/C. SEM and TEM microstructures reveal agglomeration of NPs, spherical in shape with an average particle size of 20 nm. The FTIR spectrum confirms the plant derivatives and its biomolecules and functional group associated with the CuO NPs. The core level XPS of Cu-2p and O-1s suggests the presence of oxygen vacancies and coexistence of mixed oxidation states of Cu, i.e., Cu 2+ and Cu 3+ . UV−visible absorption spectra show enhancement in the optical band gap energy (E g ∼ 2.9 eV) along with a strong absorption peak at wavelength ∼244 nm, which is not observed in previously reported literature [

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Efficacy of zinc and copper oxide nanoparticles as heat and corrosion-resistant pigments in paint formulations

El-Wahab,

Alenezy,

Omer

et al. 2024

Sci Rep

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This study focuses on the synthesis of zinc and copper oxide nanoparticles using green methods by plant extracts. The resulting metal oxides were analyzed using FT-IR spectroscopy, TGA, TEM, zeta potential and assessed for their efficacy as pigments based on properties such as Hydrogen Ion Concentration, Oil absorption, Moisture Content, Fineness of grinding, Bleeding, and loss on ignition. The results confirmed that the prepared ZnO and CuO nanoparticles exhibited the formation of nanoparticles in the range of 10–40 nm with potential as pigments. Two paint formulations incorporating these nanoparticles and silicon resins as binders were tested for physico-mechanical attributes, chemical resistance, heat resistance, and corrosion resistance of the dry paint films. The study found that the films containing the prepared oxides demonstrated excellent performance, with no damage or color alteration observed after exposure to temperatures up to 500 °C. Moreover, the paint films containing ZnO nanoparticles showed superior efficiency after a 500 h salt spray test compared to those with CuO nanoparticles. These findings suggest that the synthesized mixed oxide nanoparticles are promising candidates for heat-resistant pigment applications.

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Green synthesis and characterization of Zinc and Copper oxides nanocomposite using Phyllanthus emblica extracts and its antibacterial and antioxidant properties

Cited by 3 publications

References 22 publications

Sustainable green synthesis and characterization of nanocomposites for synergistic photocatalytic degradation of Reactive Orange 16 in textile wastewater using CuO@A-TiO2/Ro-TiO2

Sustainable green synthesis and characterization of nanocomposites for synergistic photocatalytic degradation of Reactive Orange 16 in textile wastewater using CuO@A-TiO2/Ro-TiO2

Core/Shell-Like Magnetic Structure and Optical Properties in CuO Nanoparticles Synthesized by Green Route

Efficacy of zinc and copper oxide nanoparticles as heat and corrosion-resistant pigments in paint formulations

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