Evaluation on La2O3 garlanded ceria heterostructured binary metal oxide nanoplates for UV/ visible light induced removal of organic dye from urban wastewater

Magdalane, C. Maria; Kaviyarasu, K.; Matinise, N.; Mayedwa, Noluthando; Mongwaketsi, N.; Letsholathebe, Douglas; Mola, Genene Tessema; AbdullahAl-Dhabi, Naif; Arasu, Mariadhas Valan; Henini, M.; Kennedy, J.; Mâaza, M.; Jeyaraj, B.

doi:10.1016/j.sajce.2018.09.003

Cited by 76 publications

(23 citation statements)

References 32 publications

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“…But in pure CdO sample, no free charge carriers due to the ionic bond between Cd 2+ and O 2-. In general, the parameters such as particle size, synthesis conditions, structural defects, oxygen vacancies and high carrier concentration gives impact on variations in band gap value [21,26,14]. Finally this absorption studies concluded that synthesized CdO/La2O3 and CdO/ La2O3/PVP nanocomposites with tunable band gap is the suitable materials for optoelectronic and solar cell applications.…”

Section: Uv-vis Absorption Studiesmentioning

confidence: 74%

“…The IR band near 1381 cm -1 for all three samples is assigned to C-O stretching vibration. The absorption band at 1628 cm -1 for pure CdO, 1311 cm-1 for CdO/La2O3 and 1583 cm -1 for CdO/La2O3/PVP is attributed to bending vibration band of physically adsorbed water molecules [21,[36][37]. The peaks at 2923 cm −1 , 2916 cm -1 & 2854 cm −1 in CdO, CdO/La2O3 and CdO/La2O3/PVP nanocomposites is belongs to carbonyl group of O-C-O vibrations [38].…”

Section: Functional Group Analysis By Ftirmentioning

confidence: 99%

“…Rare earth elements show the special spectral configurations with partially shielded 4f-4f electron transition [18,19]. Recent research trends move towards the usage of rare earth element, lanthanum oxide in various applications like superconductor, fiber optics, sensors, gas convector in automobiles, light emitting phosphors and laser [20,21]. Uma et al observed that the lanthanum oxide deposition layer between Au and GaN semiconductor enhanced the dielectric properties by metal insulator-semiconductor combination [17].…”

Section: Introductionmentioning

confidence: 99%

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Efficient Photocatalytic and EMI Shielding Properties of CdO/ La2O3 Nanocomposites

S¹,

Srinivasan²,

Thangeeswari³

et al. 2021

Preprint

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The pure CdO and CdO/La 2 O 3 , and CdO/La 2 O 3 /PVP nanocomposites were synthesized by microwave irradiation method. The prepared samples are analyzed by X-Ray diffraction (XRD), Fourier Transform infrared spectroscopy (FT-IR), Scanning electron microscope (SEM), Transmission electron microscope (TEM), UV visible spectrometer, Photoluminescence (PL), and Vibrating sample magnetometer (VSM). XRD and FTIR studies confirmed the formation of binary metallic nanocomposites. SEM and TEM analysis authenticate that the addition of lanthanum oxide and PVP influences the size and morphology of CdO nanoparticles the bandgap value can be tuned by the addition of La 2 O 3 and PVP. Photoluminescence spectra show the violet emission in the region between 432 nm to 460 nm and the green emission peak at 529 nm for all three synthesized samples. CIE color coordinates for CdO and CdO/La 2 O 3 , and CdO/La 2 O 3 /PVP nanocomposites were also estimated from emission spectrum. The VSM results confirmed that the nanocomposites possess the weak ferromagnetic properties due to the inclusion of La 2 O 3 and PVP. The dielectric constant, electrical conductivity and dielectric loss values at room temperature have been analyzed for CdO and CdO/La 2 O 3 , and CdO/La 2 O 3 /PVP nanocomposites. Among the three synthesized samples, the CdO/La 2 O 3 /PVP nanocomposite attain high electromagnetic shielding efficiency. Furthermore, the rare earth element lanthanum oxide and PVP enhances the efficiency of photocatalytic degradation of MB dye.

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Section: Uv-vis Absorption Studiesmentioning

confidence: 74%

Section: Functional Group Analysis By Ftirmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Efficient Photocatalytic and EMI Shielding Properties of CdO/ La2O3 Nanocomposites

S¹,

Srinivasan²,

Thangeeswari³

et al. 2021

Preprint

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“…This will enable the feasibility of this process in controlling the stoichiometry of the multi‐component metal oxides, which will enhance the reliability of this process for diverse materials and applications. These biosynthesised metal oxide nanoparticles and their composite/ hybrid forms will have extensive application potential in many research areas including catalysis, biomedical, photonics, energy storage/ conversion, environmental and sensor applications. Further, it is also essential to explore the molecular modelling/ statistical analysis to describe the mechanism of the combustion process for the synthesis of various metal oxide nanoparticles, which will help to have control over the synthetic parameters aiming towards the synthesis of final products with desired properties for many industrial applications.…”

Section: Future Perspectives and Emerging Opportunitiesmentioning

confidence: 76%

Combustion Process Using Plant‐Based Fuels for the Synthesis of Metal‐ Oxide Nanostructures

Vivekanandhan¹

2019

ChemistrySelect

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Metal oxide nanostructures receive great interest due to their unique size and shape dependent physicochemical and functional properties. With the rapid growth of metal oxide nanotechnology, their chemical synthesis processes have become the most promising one due to their simplicity and versatility. Among the various available chemical processes such as sol‐gel, hydrothermal, polyol and precipitation, the combustion process receives significant attention. In particular, the combustion process has been extensively explored for the synthesis of various nanostructured materials including metal oxides, which involves in the exothermic reaction upon thermal heating of precursor chemicals. Recently, the combustion process has been reinvented by using the various renewable resource‐based organic fuels, which receives increasing interest among global researchers. A wide range of plant/ leaf, fruit, flower, seed, peel, latex and tuber extracts along with the plant‐derived products have been explored in combustion process for the synthesis of various metal oxides. Hence, the present review is aimed to focus the recent advances in the combustion process by using renewable fuels for the synthesis of metal oxide nanostructures and also the emerging opportunities.

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“…As a follow up of this preliminary and encouraging study, other multifunctional simple and binary oxides, nanoscaled metal & nanocomposites will be biosynthesized using Rosmarinus officinalis aqueous leaves extract as an effective chelating agent with their properties, and their applications will be compared to others [15][16][17][18][19][20][21][22][23][24][25].…”

Section: Optical Propertiesmentioning

confidence: 99%

Bio-inspired synthesis of PbO nanoparticles (NPs) via an aqueous extract of Rosmarinus officinalis (rosemary) leaves

Noukelag

Mohamed

Razanamahandry³

et al. 2021

Materials Today: Proceedings

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Evaluation on La2O3 garlanded ceria heterostructured binary metal oxide nanoplates for UV/ visible light induced removal of organic dye from urban wastewater

Cited by 76 publications

References 32 publications

Efficient Photocatalytic and EMI Shielding Properties of CdO/ La2O3 Nanocomposites

Efficient Photocatalytic and EMI Shielding Properties of CdO/ La2O3 Nanocomposites

Combustion Process Using Plant‐Based Fuels for the Synthesis of Metal‐ Oxide Nanostructures

Bio-inspired synthesis of PbO nanoparticles (NPs) via an aqueous extract of Rosmarinus officinalis (rosemary) leaves

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