PROSES EKSTRAKSI NANOSILIKA BERBAHAN DASAR FLY ASH MENGGUNAKAN METODE PEMANASAN DENGAN VARIASI WAKTU PERENDAMAN

ASYSYIFA, ISMI AISYAH SALSABILA and Usman, Arie Putra (2025) PROSES EKSTRAKSI NANOSILIKA BERBAHAN DASAR FLY ASH MENGGUNAKAN METODE PEMANASAN DENGAN VARIASI WAKTU PERENDAMAN. Undergraduate thesis, Sriwijaya University.

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Abstract

Nanosilica is a particle of silica (SiO2) with nano size, usually nanosilica size ranges from 1-100 nanometers (nm). The extraction process is one of the processes that can produce nanosilica, the extraction process is the process of separating a component of a substance from its mixture using a solvent. In the extraction process, silica can be separated from fly ash, in this study the extraction process uses a heating method that will use acid and base solutions in the form of hydrochloric acid (NaCl), NaOH solution and aquades. This study used variations in soaking time of 3 hours, 4 hours, and 5 hours. This study uses microstructure testing to analyze the extraction results in the form of X-Ray Diffraction (XRD), X-Ray Fluorescence (XRF), and Scanning Electron Microscope (SEM). Long soaking times produce more crystals and larger sizes. Based on the results of the optimum time test, the best one was soaked for 3 hours which had a silica content of ±31%. Samples with a soaking time variation of 3 hours had a silica content of ±31% with a crystal size of 76.43 nm and 86.45% amorphous.

Item Type:	Thesis (Undergraduate)
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA401-492 Materials of engineering and construction. Mechanics of materials > TA418.9.C6.B538 Composite materials. Polymeric composites. Fibrous composites. Biomass chemicals. TECHNOLOGY & ENGINEERING / Material Science. SCIENCE / Chemistry / General
Divisions:	03-Faculty of Engineering > 22201-Civil Engineering (S1)
Depositing User:	Ismi Aisyah Salsabila Asysyifa
Date Deposited:	21 Feb 2025 03:42
Last Modified:	21 Feb 2025 03:42
URI:	http://repository.unsri.ac.id/id/eprint/167630

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