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Riska Trisna Nuraini
Lampung University
Materials Science & Nanotechnology Physics

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Pengaruh Variasi H2SO4 Pada Pembentukan Nanosilika Berbasis Batu Apung Riska Trisna Nuraini; Posman Manurung; Suprihatin Suprihatin
Jurnal Teori dan Aplikasi Fisika Vol 7, No 2 (2019): Jurnal Teori dan Aplikasi Fisika
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtaf.v7i2.1954

Abstract

Nanosilica was extracted by using NaOH, H2SO4 and HCl. The amounth of NaOH and HCl are 3,0 M and 1,0 M respectively. The titration using H2SO4 was varied of 4,0 M; 4,5 M; 5,0 M; 5,5 M; 6,0 M. The pumice powder was calcined for 4 hours at 500 ºC and the nanosilica powder was calcined for 5,5 hours at 800 ºC. The results of X-Ray Flouresence (XRF) showed nanosilica with the highest purity in variation of H2SO4 5,0 M at 95,32%. The results of the X-Ray Diffractometer (XRD) showed that pumice consistent the anorthite and albite phase. The variation of H2SO4 5,0 M produced an amorphous phase. The results of Transmission Electron Microscopy (TEM) show nanosilica particle size with variations of H2SO4 5,0 M in the range 4,8-11,3 nm with an average (7,62 ± 2,15) nm.
Co-Authors Posman Manurung Suprihatin Suprihatin