Investigation on the formation of self-assembled CdSe dendrite structures and their photocatalytic efficiency

Venci, X.; George, Amal; Rahul, S.; Raj, A. Dhayal; Irudayaraj, A. Albert; Josephine, R.L.; Sundaram, S. John; Kaviyarasu, K.

doi:10.1016/j.inoche.2022.110309

Cited by 13 publications

(2 citation statements)

References 58 publications

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“…On the surface of NiO‐doped Co nanoparticles, the electrons in the conduction band interact with adsorbed oxygen (O 2 ) molecules, leading to the production of superoxide radicals (O 2 − ). Instead of hydroxyl radicals (OH − ), reactive hydroxyl radicals (OH • ) can be formed by the interaction of these excited electrons with water molecules [54–57]. MB is degraded into smaller organic molecules due to the hydroxyl radicals generated in response to light exposure.…”

Section: Resultsmentioning

confidence: 99%

Enhanced photocatalytic and electrochemical performance of hydrothermally prepared NiO‐doped Co nanocomposites

Venkatachalapathy,

Sambathkumar,

Rajasaravanan

et al. 2024

Luminescence

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In this study, we synthesize nanostructured nickel oxide (NiO) and doped cobalt (Co) by combining nickel(II) chloride hexahydrate (NiCl2.6H2O) and sodium hydroxide (NaOH) as initial substances. We analyzed the characteristics of the product nanostructures, including their structure, optical properties, and magnetic properties, using various techniques such as x‐ray diffraction (XRD), scanning electron microscopy (SEM), ultraviolet absorption spectroscopy (UV–Vis), Fourier transform infrared (FTIR) spectroscopy, and vibrating sample magnetometers (VSM). The NiO nanoparticles doped with Co showed photocatalytic activity in degrading methylene blue (MB) dye in aqueous solutions. We calculated the degradation efficiencies by analyzing the UV–Vis absorption spectra at the dye's absorption wavelength of 664 nm. It was observed that the NiO‐doped Co nanoparticles facilitated enhanced recombination and migration of active elements, which led to more effective degradation of organic dyes during photocatalysis. We also assessed the electrochemical properties of the materials using cyclic voltammetry (CV) and impedance spectroscopy in a 1 mol% NaOH solution. The NiO‐modified electrode exhibited poor voltammogram performance due to insufficient contact between nanoparticles and the electrolyte solution. In contrast, the uncapped NiO's oxidation and reduction cyclic voltammograms displayed redox peaks at 0.36 and 0.30 V, respectively.

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Section: Resultsmentioning

confidence: 99%

Enhanced photocatalytic and electrochemical performance of hydrothermally prepared NiO‐doped Co nanocomposites

Venkatachalapathy,

Sambathkumar,

Rajasaravanan

et al. 2024

Luminescence

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“…Cadmium-based nanoparticles (NPs) can be synthesised in a wide variety of geometries, regular and irregular in shape. [1][2][3][4][5] Anisotropic structures, such as rods and triangular shapes, have higher chemical potentials than isotropic spherical nanoparticles (if they have the same volume) due to their higher surface energy. 6 Usually, the most common methods for the synthesis of high-quality cadmium-based nanoparticles are high-temperature thermal reactions in organic solvents, which is considered a key factor inuencing the shape control process during the reaction.…”

Section: Introductionmentioning

confidence: 99%

Room temperature synthesis of CdSe/CdS triangular nanoemitters and their stabilization in colloidal state and sol–gel glass

Lesiak,

Wagnon,

Chateau

et al. 2023

RSC Adv.

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Time‐Dependent Hydrothermal Synthesis of La₂O₃ NPs for Effective Catalytic Activity of Ionic Dye

Rahul,

George,

Savio

et al. 2024

Luminescence

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Lanthanum oxide was successfully synthesized by hydrothermal method by varying the reaction time such as 6, 12, and 24 h. In XRD, study confirms the presence of a hexagonal structure, and the phase remains the same at different times; the main goal is to assess the average crystallite size of prepared La2O3 nanoparticles, which was found in the range of 6 to 8 nm. An interesting observation from the XRD data was the apparent increase in crystalline nature as the synthesis time was extended. The UV–Vis spectroscopic studies show a change in the band gap when the reaction time is changed. The morphology analysis shows that the image revealed that the particles formed were agglomerated and formed a spherical shape, with diameters ranging between 35 and 86 nm. When tested for photocatalytic activity, the La2O3 nanoparticles show a degradation of methylene blue dye when the time varies. Remarkably, the nanoparticles synthesized exhibited a profound ability to degrade the dye, with an efficiency rate hitting as high as 89% under halogen light illumination.

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Investigation on the formation of self-assembled CdSe dendrite structures and their photocatalytic efficiency

Cited by 13 publications

References 58 publications

Enhanced photocatalytic and electrochemical performance of hydrothermally prepared NiO‐doped Co nanocomposites

Enhanced photocatalytic and electrochemical performance of hydrothermally prepared NiO‐doped Co nanocomposites

Room temperature synthesis of CdSe/CdS triangular nanoemitters and their stabilization in colloidal state and sol–gel glass

Time‐Dependent Hydrothermal Synthesis of La₂O₃ NPs for Effective Catalytic Activity of Ionic Dye

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Investigation on the formation of self-assembled CdSe dendrite structures and their photocatalytic efficiency

Cited by 13 publications

References 58 publications

Enhanced photocatalytic and electrochemical performance of hydrothermally prepared NiO‐doped Co nanocomposites

Enhanced photocatalytic and electrochemical performance of hydrothermally prepared NiO‐doped Co nanocomposites

Room temperature synthesis of CdSe/CdS triangular nanoemitters and their stabilization in colloidal state and sol–gel glass

Time‐Dependent Hydrothermal Synthesis of La2O3 NPs for Effective Catalytic Activity of Ionic Dye

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Time‐Dependent Hydrothermal Synthesis of La₂O₃ NPs for Effective Catalytic Activity of Ionic Dye