Scholarlink

<p>Quartz sand has naturally high silica content, a potential material to be extracted into nano silicon. The applications of nano silicon are widely used in the industrial world. This research extracts nano silicon from quartz sand using the magnesiothermal method. This method is effective and efficient because it uses low temperatures compared to other methods, thus saving energy. XRD patterns of the products obtained show reflections positioned at 28.38◦, 47.24◦, 56.05◦, 69.06◦, 76.31◦ and 87.97◦ 2Θ, which are characteristic for the silicon element, as well as aspherical shape morphology observed from the SEM and TEM images. The SiO<sub>2</sub> and Mg powder mass ratio of 1:1 (sample A) resulted in silicon purity reaching 97.92%, and the mass ratio of 1:1.5 (sample B) obtained a purity of 99.44%. The surface area of sample A is higher (2568 m<sup>2</sup>g<sup>−1</sup> compared to 2146 m<sup>2</sup>g<sup>−1</sup>), and the pore size is smaller (1.87&#xa0;nm compared to 2.01&#xa0;nm) than sample B's. The crystallite size of sample A (21.23&#xa0;nm) is similar to sample B's (20.81&#xa0;nm). Mg binds oxygen from SiO<sub>2</sub>, thus splitting the SiO<sub>2</sub> into nano Si and MgO. Purification was done by adding HF and HCl to remove MgO and obtain nano Si. The peaks, shapes, and sizes shown are enough to show that the material extracted from quartz sand by the magnesiothermal method is characteristic of high-purity nano silicon.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Extraction of Quartz Sand to Derive Nano Silicon by Magnesiothermal Method with Different Ratio of Silica (SiO2) and Magnesium (Mg) Powder

  • 期刊论文

  • 发表日期：

    2025年5月24日

查看全文
  • Singgih Prabowo,
  • Amru Daulay,
  • Yassaroh Yassaroh,
  • Sukmaji Indro Cahyono,
  • Naufal Haidar Fadhil

摘要

Quartz sand has naturally high silica content, a potential material to be extracted into nano silicon. The applications of nano silicon are widely used in the industrial world. This research extracts nano silicon from quartz sand using the magnesiothermal method. This method is effective and efficient because it uses low temperatures compared to other methods, thus saving energy. XRD patterns of the products obtained show reflections positioned at 28.38◦, 47.24◦, 56.05◦, 69.06◦, 76.31◦ and 87.97◦ 2Θ, which are characteristic for the silicon element, as well as aspherical shape morphology observed from the SEM and TEM images. The SiO2 and Mg powder mass ratio of 1:1 (sample A) resulted in silicon purity reaching 97.92%, and the mass ratio of 1:1.5 (sample B) obtained a purity of 99.44%. The surface area of sample A is higher (2568 m2g−1 compared to 2146 m2g−1), and the pore size is smaller (1.87 nm compared to 2.01 nm) than sample B's. The crystallite size of sample A (21.23 nm) is similar to sample B's (20.81 nm). Mg binds oxygen from SiO2, thus splitting the SiO2 into nano Si and MgO. Purification was done by adding HF and HCl to remove MgO and obtain nano Si. The peaks, shapes, and sizes shown are enough to show that the material extracted from quartz sand by the magnesiothermal method is characteristic of high-purity nano silicon.