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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/2674
Title: Preparation and characterisation of biosilica from teff (eragrostis tef) straw by thermal method
Authors: Bageru A.B.
Srivastava, Vimal Chandra
Published in: Materials Letters
Abstract: Biosilica was synthesised via thermal method from teff (Eragrostis tef) straw, an African agricultural waste, at three different ashing temperatures. Raw teff, characterised by various method, was subjected to thermal decomposition in static air in an electric muffle furnace at various temperatures for 2 h. X-ray fluorescence (XRF) characterization technique analysis showed thermally treated teff straw ash contains significant amount of biosilica having purity of 85, 91.2 and 91.8% for samples obtained at ashing temperatures of 500 °C, 700 °C, and 900 °C, respectively. Teff straw biosilica samples were also characterised by various sophisticated techniques: FE-SEM/EDX, FTIR), XRD and TEM. Prepared biosilica samples performed well for adsorptive removal of pyridine from aqueous solution. Present experimental results show that teff straw is highly-potent renewable source for biosilica when compared with other materials reported in the literature under similar conditions. © 2017 Elsevier B.V.
Citation: Materials Letters (2017), 206(): 13-17
URI: https://doi.org/10.1016/j.matlet.2017.06.100
http://repository.iitr.ac.in/handle/123456789/2674
Issue Date: 2017
Publisher: Elsevier B.V.
Keywords: Biomass
Biosilica
Pyridine adsorption
Teff straw ash
Thermal analysis
X-ray techniques
ISSN: 0167577X
Author Scopus IDs: 57194620602
35565811700
Author Affiliations: Bageru, A.B., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
Srivastava, V.C., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
Corresponding Author: Srivastava, V.C.; Department of Chemical Engineering, Indian Institute of Technology RoorkeeIndia; email: vimalcsr@yahoo.co.in
Appears in Collections:Journal Publications [CH]

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