Effects of selenium concentration in the precursor solution on the material properties of cadmium selenide flower-like nanoparticles

Kiprotich, Sharon; Dejene, F.B.; Onani, Martin O.

doi:10.1007/s00339-018-2303-0

Cited by 5 publications

(2 citation statements)

References 34 publications

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“…The ratio of plant extract volume to selenium precursor concentration needs to be optimized to produce SeNPs under ideal conditions. 64 Alam et al 32 described the effect of leaf extract concentration on the synthesis of SeNPs by recording UV-Vis spectra. The spectra revealed that absorption intensity increases as the concentration increases and reaches its maximum.…”

Section: Effect Of Plant Extracts and Concentrations On The Fabricati...mentioning

confidence: 99%

Plant-derived selenium nanoparticles: investigating unique morphologies, enhancing therapeutic uses, and leading the way in tailored medical treatments

Puri,

Mohite,

Ansari

et al. 2024

Mater. Adv.

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Section: Effect Of Plant Extracts and Concentrations On The Fabricati...mentioning

confidence: 99%

Plant-derived selenium nanoparticles: investigating unique morphologies, enhancing therapeutic uses, and leading the way in tailored medical treatments

Puri,

Mohite,

Ansari

et al. 2024

Mater. Adv.

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“…Reduction of selenium was done using the procedure described in [34]. Selenium (0.31 g) was reduced using sodium sulphite (1 g) in 100 ml deionised water (DI) and refluxed for 6 h at 80 °C.…”

Section: Synthesis Of Cdte/cdse Core/shell Npsmentioning

confidence: 99%

Effects of growth time on the material properties of CdTe/CdSe core/shell nanoparticles prepared by a facile wet chemical route

Kiprotich

Dejene

Onani

2022

Mater. Res. Express

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This study presents a facile synthetic approach used to prepare CdTe/CdSe core/shell nanoparticles (NPs). The effects of reaction time on the material properties of the CdTe/CdSe NPs are reported. It was realized that the reaction time has significant impact on the CdSe shell growth on the CdTe core. Various techniques were used to characterize the as-prepared CdTe/CdSe NPs. The X-ray diffraction (XRD) was used to study the crystal structure and the possible growth of the CdSe shell on the CdTe core. The results obtained indicated the formation of zinc blende crystal structure which was transformed from a polycrystalline to single crystalline structure. The XRD pattern displayed features that are intermediate between the CdTe and CdSe, a sign of shell formation and not two separate compounds formed. This was also supported by high resolution transmission electron microscope images obtained. The crystallite sizes estimated using Scherrer formula were all less than 3 nm showing that the NPs are in quantum confinement regime. Scanning electron microscope was used to determine the surface topography while the energy X-ray dispersive spectrometer displayed the elemental composition of the as-prepared NPs. SEM and HRTEM images showed uniformly distributed spherical NPs with some agglomerations observed at longer duration of synthesis. The optical properties (photoluminescence (PL) and absorbance) investigated at different reaction times (20, 40, 60 and 80 min) presented novel features which show the formation of a thin CdSe shell on the CdTe core NPs. The PL emission wavelength was dramatically red shifted upon the growth of the CdSe shell on the CdTe core (from 541- 615 nm). Other unique features of the as-grown CdTe/CdSe NPs are discussed in detail. The obtained results displayed good material properties of the CdTe/CdSe NPs suitable for use in biomaging applications.

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Assessment of silver and graphitic carbon nitride doped cadmium selenide quantum dots as an efficient dye degrader and antibacterial agent: In silico molecular docking analysis

Rubab,

Haider,

Shahzadi

et al. 2024

Materials Today Sustainability

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Effects of selenium concentration in the precursor solution on the material properties of cadmium selenide flower-like nanoparticles

Cited by 5 publications

References 34 publications

Plant-derived selenium nanoparticles: investigating unique morphologies, enhancing therapeutic uses, and leading the way in tailored medical treatments

Plant-derived selenium nanoparticles: investigating unique morphologies, enhancing therapeutic uses, and leading the way in tailored medical treatments

Effects of growth time on the material properties of CdTe/CdSe core/shell nanoparticles prepared by a facile wet chemical route

Assessment of silver and graphitic carbon nitride doped cadmium selenide quantum dots as an efficient dye degrader and antibacterial agent: In silico molecular docking analysis

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