Dyes pollution is a major problem in the water, especially since the main factor is textile factories. The treatments for this problem through nanomaterials have taken a broad scope and many studies. In this study, trinary Novel metals oxide [CuNiFe2O5] nanocomposite is successfully synthesized by Uv-irradiation presses with a maximum intensity wavelength at 365 nm. The nanocomposite was investigated by scanning and transmission electron microscopy measurements (SEM and TEM), and their crystal structure is obtained by the X-ray diffraction technique (XRD). The percentage of elements on the sample was determinate by an Energy-dispersive X-ray spectroscope (EDX) and X-ray mapping. The energy gap is equal to 2.48 eV calculated by photoluminescence spectroscopy (PL). Incorporating CuNiFe2O5 NPs enhanced the uptake of Cibacron brilliant red dye (CBR). A faster CBR adsorption onto CuNiFe2O5 nanocomposite at a contact time of 75 min. The Freundlich (R2 > 0.9684) and pseudo-second-order (R2 > 0.9749) models were most appropriate in the description of the adsorption process. A thermodynamic study was performed to calculate the ΔG, ΔH, and ΔS parameters of 1.415 kJ/mol, 7.63 J/mol K, and 20.8 J/mol. Finally, the novel synthesized nanocomposite is a good adsorbate surface for Cibacron brilliant red dye.
Nanoparticles were physically attached to photodegradation applications. Nanoparticles are particles of sizes within the range of 1 to 100 nm with at least one dimension. Nanoscale structures, for example, nanolayers and nanoparticles, have an extremely high surface-to-volume ratio, making them perfect for employing in different materials for various applications. In general, In case of nanometers, nanoparticles are categorized into organic, inorganic, and carbon-based particles in nanometric scales that have enhanced characteristics in contrast with micrometric or larger sizes of individual materials. The nanoparticles appear upgraded characteristics, for example, surface area, high surface reactivity (bioactive), and high quality, also appeared stable, sensitive, and so on due to their smaller sizes. Different methodologies are used to synthesize the nanoparticle materials for research studies and traditionally utilizes. These techniques are ordered into three principal types to be specific chemical, physical and mechanical procedures that have seen a tremendous improvement after some time. This article covers the fundamentals of nanotechnology, nanoparticle types, synthetic methodologies, the use of metal, metal oxides, and carbon-based nanoparticle in the field of photocatalysis, and the development of using nanomaterials in air purification and environmental protection. Herein, a variety of synthetic strategies for nanomaterials are summarized, including their applications as photocatalysts.
Zinc oxide nanoparticles (ZnO NPs) is unique studied semiconductor substance for photocatalytic utilization like light-emitting diodes, solar cells, photo-diode, sensor, and photo-detector. The ZnO nanoparticles ratio of surface to volume as increases with reduces size and afford an increase to improve the reactivity of the surface. Among all the possible approaches for the ZnO nanoparticles preparation, the sol-gel process is individual and simple for the synthesis of metal oxides nanoparticles. ZnO NPs was synthesized by the sol-gel approach and characterized by scanning electron microscopy (SEM), atomic force microscopy (AFM), x-ray diffraction (XRD), and UV-visible spectroscopy techniques for structural and morphological investigations. The obtained SEM, AFM and XRD experimental findings showed the spherical shapes of ZnO NPs. The purpose of the current investigation was to prepare ZnO NPs via the sol-gel technique for utilization as a photo-catalyst for the organic pollutant namely clofibrate acid photodegradation below the irradiation of UV light. The rate of photodegradation of clofibrate acid enhanced with the additional loading of ZnO NPs. The entirely degradation of the clofibrate acid had been recognized. T
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