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Erschienen in:
High-Performance Supercapacitors Based on Hierarchical VOx Microspheres Forming from Hyperbranched Nanoribbons Kapitel lesen Erstes Kapitel lesen

2017 | OriginalPaper | Buchkapitel

Characterization of Chitin Synthesized from Snail Shell

verfasst von : S. O. Adeosun, O. P. Gbenebor, E. I. Akpan, S. A. Olaleye

Erschienen in: TMS 2017 146th Annual Meeting & Exhibition Supplemental Proceedings

Verlag: Springer International Publishing

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Abstract

Thermogravimetric analysis was used to analyze chitin thermal stability present in unprocessed and processed snail shell samples using different concentrations of HCl and NaOH. The result shows that 42% of CaCO3 in the snail shell decomposes between 699–779 °C while decomposition of chitin (2.11%) starts at 275 °C and ends at 335 °C. De-mineralization and de-proteinization of the snail shell using 1.5 M HCl and 0.4 M NaOH eliminates CaCO3 formation and sample shows existence of 60% chitin decomposing between 346 and 412 °C. The XRD of virgin snail shell showing the main diffraction face intensity for CaCO3 occurring at 2θ = 29.5o with other CaCO3 peaks occur at 2θ =  30.2o, 39.3o, 41.0o, 44.2o, 45.9o, 48.9o, 51.5o, 53.1o and 55.6o. Chitin present occurs at reflection 2θ = 36.3o with weak intensity and the XRD shows no evidence of CaCO3 but two chitin crystalline peaks at 20.6o and 26.3o with 78% lowest crystallinity index.

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Metadaten
Titel
Characterization of Chitin Synthesized from Snail Shell
verfasst von
S. O. Adeosun
O. P. Gbenebor
E. I. Akpan
S. A. Olaleye
Copyright-Jahr
2017
Buch
TMS 2017 146th Annual Meeting & Exhibition Supplemental Proceedings

Print ISBN: 978-3-319-51492-5

Electronic ISBN: 978-3-319-51493-2

Copyright-Jahr: 2017

DOI
https://doi.org/10.1007/978-3-319-51493-2_25

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