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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/2660
Title: Biosilica preparation from abundantly available African biomass Teff (Eragrostis tef) straw ash by sol-gel method and its characterization
Authors: Bageru A.B.
Srivastava, Vimal Chandra
Published in: Biomass Conversion and Biorefinery
Abstract: This study reports preparation of biosilica from teff straw ash via sol-gel method. Teff straw ash prepared at different ashing temperatures (500, 700, and 900 °C) was treated with 2.5 N NaOH solution prior to acidification in order to extract biosilica in the form of sodium silicate solution (SSS). The effects of ashing temperatures on biosilica yield and physiochemical properties were studied. Physicochemical properties of extracted biosilica were determined by performing XRD, FE-SEM, EDX, and FTIR analysis. The carbon content and other impurities in extracted biosilica decreased with rise in ashing temperature. The biosilica yield increased with ashing temperature in the order 500 °C (49.5%) < 700 °C (70.2%) < 900 °C (84.5%). EDX, XRF, and FTIR analysis confirmed that the purity was > 99% for biosilica prepared from teff straw ash prepared at 900 °C. © 2018, Springer-Verlag GmbH Germany, part of Springer Nature.
Citation: Biomass Conversion and Biorefinery (2018), 8(4): 971-978
URI: https://doi.org/10.1007/s13399-018-0335-5
http://repository.iitr.ac.in/handle/123456789/2660
Issue Date: 2018
Publisher: Springer Verlag
Keywords: Ashing temperature
Biosilica
EDX analysis
Sol-gel method
Teff straw
ISSN: 21906815
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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