ANALYSIS OF THE EFFECT OF AGING TIME ON AMORPHOUS PHASE NANOSILICA FROM PARANGLOE IGNEOUS ROCKS USING THE SOL-GEL METHOD

Rismawati Rismawati; Ahmad Fudhail Majid; Suriati Eka Putri

doi:10.23960/analit.v9i01.172

Authors

Rismawati Rismawati Department of Chemistry, Faculty of Mathematics and Natural Sciences, State University of Makassar
Ahmad Fudhail Majid Department of Chemistry, Faculty of Mathematics and Natural Sciences, State University of Makassar.
Suriati Eka Putri Department of Chemistry, Faculty of Mathematics and Natural Sciences, State University of Makassar

DOI:

https://doi.org/10.23960/analit.v9i01.172

Keywords:

Igneous rock, Nanosilica, Parangloe

Abstract

In this research, an analysis of the effect of aging time on amorphous phase nanosilica from Parangloe
igneous rock was conducted using the sol-gel method. The research samples were taken from around
the Parangloe waterfall in Gowa regency, South Sulawesi province. The research stages included
sample preparation, nanosilica synthesis using the sol-gel method, and synthesis results
characterization. Characterization was performed using XRF, XRD, SEM-EDX, and PSA. XRF data
showed that the silica content was 53.62% in the form of white powder, and after synthesis, it
decreased to 12.38%. SEM-EDX testing results showed small agglomerated spheres with an EDX of
4.52%. A 3-hour aging time variation resulted in an amorphous phase, making 3 hours the optimum
time for amorphous phase nanosilica formation with the highest peak intensity at 2Î¸=25.42 ° and a
particle size of 170.8 nm.

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