Synthesis and Characterized of Carbon Nanotubes from Fermented Tapioca

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Carbon nanotubes (CNT) has been synthesized by pyrolysing fermented tapioca liquid using an immersed heater. It was made single-walled carbon nanotubes (SWCNT) through heating at 700, 800 and 900 °C by the chemical vapour deposition (CVD) method and characterized by using Raman spectroscopy, thermogravimetric analysis and field emission scanning electron microscopy (FESEM). The synthesized SWCNT demonstrated larger diameters at 700 °C which decreased at 800 and 900 °C, respectively. The SWCNTs were indicated based on the radial breathing mode (RBM) peak present between 200 - 300 raman shift (cm-1). The diameters of synthesized CNTs ranged between 54 - 200 nm. Raman spectrum revealed that the G-bands were 1569, 1582 and 1576 cm-1, respectively, whereas the D-bands were 1346, 1350 and 1358 cm-1 for SWCNT synthesis at 700, 800 and 900 °C, respectively. The modified CVD method set up in the present study was successfully used for large scale synthesis of CNTs from an aqueous precursor such as fermented tapioca liquid.

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June 2015

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