ǂa ǂlow-temperature green synthesis approach
Mohanachandran Nair Sindhu Swapna (Author), H. V. Saritha Devi (Author), Sankaranarayana Iyer Sankararaman (Author)

Abstract

Boron carbide is a promising super-hard semiconducting material for refractory applications ranging from the nuclear industry to spacecraft. The present work is the frst report of not only turning futile soot, containing carbon allotropes in varying composition, into boron-rich boron carbide (BC), but also developing it by a low-cost, low-temperature, and green synthesis method. The BC synthesised from gingelly oil soot is subjected to structural, morphological, and optical characterisations. The feld emission scanning electron microscope shows beautiful fower-like morphology, and the thermogravimetric analysis reveals the high-temperature stability of the sample synthesised. The Tauc plot of the sample indicates a 2.38 eV direct bandgap. The formation of BC and boron-rich carbide evidenced by X-ray difraction studies is confrmed through Raman and Fourier transform infrared spectroscopic signatures of B–C and C–B–C bonds. The fuorescence, power spectrum, and CIE analyses carried out suggest the blue light emission for excitation at 350 nm

Keywords

boron carbide;soot;carbon nanoparticle;refractory;allotropes;green synthesis;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UNG - University of Nova Gorica
UDC: 54
COBISS: 113353475 Link will open in a new window
ISSN: 1229-7801
Views: 485
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Other data

URN: URN:SI:UNG
Pages: str. 651–657
Volume: ǂVol. ǂ57
Issue: ǂiss. ǂ6
Chronology: 2020
DOI: 10.1007/s43207-020-00066-5
ID: 15786695