Hydrothermal development and characterization of the wear-resistant boron carbide from Pandanus: a natural carbon precursor
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Boron carbide (B4C) is a prominent semiconducting material that finds applications in the field of science and technology. The excellent physical, thermal and electronic properties make it suitable as ceramic armor, wear-resistant, lens polisher and neutron absorber in the nuclear industry. The existing methods of synthesis of boron carbide involve the use of toxic chemicals that adversely affect the environment. In the present work, we report for the first time the use of the hydrothermal method, for converting the cellulose from Pandanus leaves as the carbon precursor for the synthesis of B4C. The carbon precursor is changed into porous functionalized carbon by treating with sodium borohydride (NaBH4), followed by treating with boric acid to obtain B4C. The samples are characterized by scanning electron microscopy, X-ray diffraction, Fourier transform infrared, Raman, photoluminescent and Ultraviolet–Visible absorption spectroscopy. The formation of B4C from natural carbon source—Pandanus presents an eco-friendly, economic and non-toxic approach for the synthesis of refractory carbides.
One of the authors G. Ambadas is thankful to University Grants Commission, New Delhi for the financial support in the form of a Minor project.
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