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Synthesis of Mesoporous Silicon with Uniform Pore Size Using the Ashes of Husks from Panicum Miliare Millet: A Novel Recyclable Bio-waste

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Abstract

In this study, a novel source of mesoporous silicon has been reported using the waste husk ashes obtained from Panicum miliare millet. Silica was available as the major content to about 94–96 % for the ash heated to 900 °C for 12 hrs. Silica from Panicum miliare husk ashes is reduced into mesoporous silicon by magnesiothermic process. Chemical content of the reduced silicon were determined by ICP-OES. Porosity studies was carried out by nitrogen adsorption-desorption studies. The average BJH pore diameter was determined to be 55.674 Å. The resulting adsorption isotherm is type-IV with capillary-condensation of hysteresis H3 due to aggregates of non-rigid slit pores. Its amorphous nature was determined by TEM and uniformity in pore size distribution was confirmed by BJH pore size distribution. Surface characterization was done by SEM-EDS, TEM and TEM-SAED.

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Authors and Affiliations

  1. Department of Chemistry, Adhiyamaan College of Engineering, Hosur, Tamilnadu, India

    Venkatesan Srinivasan, Sibi Srinivasan & Sundaram Thiraviyam

  2. Department of Chemistry, Islamiah College, Vaniyambadi, Tamilnadu, India

    Subramani Kullagounder

Authors
  1. Venkatesan Srinivasan
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  2. Subramani Kullagounder
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  3. Sibi Srinivasan
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  4. Sundaram Thiraviyam
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Correspondence to Venkatesan Srinivasan.

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Srinivasan, V., Kullagounder, S., Srinivasan, S. et al. Synthesis of Mesoporous Silicon with Uniform Pore Size Using the Ashes of Husks from Panicum Miliare Millet: A Novel Recyclable Bio-waste. Silicon 11, 2345–2351 (2019). https://doi.org/10.1007/s12633-015-9321-8

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  • DOI: https://doi.org/10.1007/s12633-015-9321-8

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