Pengaruh Temperatur Kalsinasi pada Sintesis Nanopartikel Silika Pantai Purus Kota Padang

Authors

  • Tika Yulian Rozi Jurusan Fisika FMIPA Universitas Andalas
  • Astuti Astuti Jurusan Fisika FMIPA Universitas Andalas

DOI:

https://doi.org/10.25077/jfu.5.4.351-356.2016

Abstract

Sintesis nanopartikel silika telah berhasil dilakukan dengan menggunakan bahan pasir pantai Purus Sumatera Barat. Nanopartikel silika disintesis menggunakan metode kopresipitasi, yaitu dengan cara merendam pasir dengan HCl 10 M selama 12 jam kemudian pasir direaksikan dengan NaOH 7 M.  Larutan disaring kemudian dititrasi dengan HCl 10 M sampai pH akhir mendekati 1-2. Hasil sintesis di dikalsinasi dengan variasi temperatur 600◦C, 700◦C dan 800◦C selama 5 jam. Berdasarkan hasil XRD diketahui bahwa sampel yang dikalsinasi dengan temperatur 600◦C memiliki kristal silika kuarsa dengan hasil sampingan berupa NaCl.  Kristal silika kuarsa dan kristobalit ditemukan pada sampel dengan temperatur kalsinasi 700◦C dan 800◦C.  Ukuran kristal ketiga sampel lebih besar dari pada 100 nm. Hasil SEM menunjukan bahwa semua sampel memiliki bentuk partikel yang tidak homogen dan mengalami penggumpalan.

Kata kunci : nanopartikel, silika, kalsinasi, XRD, SEM

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Published

2016-10-04

How to Cite

Rozi, T. Y., & Astuti, A. (2016). Pengaruh Temperatur Kalsinasi pada Sintesis Nanopartikel Silika Pantai Purus Kota Padang. Jurnal Fisika Unand, 5(4), 351–356. https://doi.org/10.25077/jfu.5.4.351-356.2016

Issue

Vol. 5 No. 4 (2016)

Section

Articles

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Copyright (c) 2016 Tika Yulian Rozi, Astuti Astuti

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