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1.
Tunable fluorescence from natural carbon source- Pandanus
SANKARARAMAN S, AMBADAS G, SARITHA DEVI H V, SWAPNA MOHANACHANDRAN NAIR SINDHU, 2019, izvirni znanstveni članek

Opis: Carbon materials possessing photoluminescence properties are considered as potential candidates in a wide range of photonic and optoelectronic applications. In this work, the cellulose derived from the natural source, Pandanus, is autoclave-treated for the synthesis of fluorescent carbon. The natural fibres are greatly preferred over synthetic ones due to their cost-effectiveness, easy processability, non-abrasivity, non-toxic and environmentfriendly characteristics along with high mechanical strength and damage tolerance. These properties enable them to be used as templates for synthesis, as important reinforcement materials for commercial thermoplastics and for making value-added products. In this study, the synthesised sample is subjected to structural, morphological, elemental and optical characterisations. These studies reveal that the sample can be used as a low-cost tunable light-emitting source for photonic, biomedical and biosensing applications.
Najdeno v: ključnih besedah
Ključne besede: Fluorescence, Pandanus, natural carbon, cellulose
Objavljeno: 04.07.2022; Ogledov: 72; Prenosov: 0
.pdf Polno besedilo (1,58 MB)

2.
Natural precursor based hydrothermal synthesis of sodium carbide for reactor applications
SWAPNA MOHANACHANDRAN NAIR SINDHU, 2017, izvirni znanstveni članek

Opis: Carbides are a class of materials with high mechanical strength and refractory nature which finds a wide range of applications in industries and nuclear reactors. The existing synthesis methods of all types of carbides have problems in terms of use of toxic chemical precursors, high-cost, etc. Sodium carbide (Na2C2) which is an alkali metal carbide is the least explored one and also that there is no report of low-cost and low-temperature synthesis of sodium carbide using the eco-friendly, easily available natural precursors. In the present work, we report a simple low-cost, non-toxic hydrothermal synthesis of refractory sodium carbide using the natural precursor—Pandanus. The formation of sodium carbide along with boron carbide is evidenced by the structural and morphological characterizations. The sample thus synthesized is subjected to field emission scanning electron microscopy (FESEM), x-ray powder diffraction (XRD), ultraviolet (UV)—visible spectroscopy, Fourier transform infrared spectroscopy (FTIR), Raman, and photoluminescent (PL) spectroscopic techniques.
Najdeno v: ključnih besedah
Povzetek najdenega: ...of refractory sodium carbide using the natural precursor— Pandanus. The formation of sodium carbide along with...
Ključne besede: sodium carbide, pandanus, hydrothermal synthesis, porous materials
Objavljeno: 30.06.2022; Ogledov: 126; Prenosov: 0
.pdf Polno besedilo (2,57 MB)

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