ANALISIS HASIL NANOSILICA BERBAHAN DASAR FLY ASH MENGGUNAKAN METODE HIDROTERMAL DENGAN VARIASI SUHU PENGERINGAN

PUTRI, SITI LEKATYA ESMERALDA and Usman, Arie Putra (2015) ANALISIS HASIL NANOSILICA BERBAHAN DASAR FLY ASH MENGGUNAKAN METODE HIDROTERMAL DENGAN VARIASI SUHU PENGERINGAN. Undergraduate thesis, Sriwijaya University.

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Abstract

Fly ash is a coal combustion byproduct rich in silica and alumina, was synthesized using the hydrothermal method with drying temperatures of 100°C, 110°C, and 125°C to assess its impact on crystal structure, elemental composition, and morphology. X-Ray Diffraction (XRD) analysis showed that crystallinity increased with temperature, with sharper diffraction peaks at 125°C. Scanning Electron Microscope (SEM) analysis revealed a denser morphology at 110°C, while 125°C produced a smoother surface but showed signs of agglomeration. X-Ray Fluorescence (XRF) results confirmed that SiO₂, Al₂O₃, and Fe₂O₃ were the dominant components, with SiO₂ content increasing at higher temperatures. The optimal drying temperature of 110°C yielded a more homogeneous and mechanically stable structure, with approximately 55% silica purity, a crystal size of 73.97 nm, and a crystallinity of 2.65%, while the amorphous phase accounted for 97.34%.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Fly Ash, Nanosilika, Sintesis, Metode Hidrotermal, Pengeringan, XRD, XRF, SEM
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA401-492 Materials of engineering and construction. Mechanics of materials > TA418.9.N35.W365 Nanostructured materials--Thermal properties. Heat--Transmission. TECHNOLOGY & ENGINEERING / Nanotechnology & MEMS.
Divisions:	03-Faculty of Engineering > 22201-Civil Engineering (S1)
Depositing User:	Siti Lekatya Esmeralda Putri
Date Deposited:	21 Apr 2025 05:19
Last Modified:	22 Apr 2025 01:52
URI:	http://repository.unsri.ac.id/id/eprint/170463

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