Simamora, Wike Setiawasty (2018) OPTIMALISASI DAN KARAKTERISASI ABU VULKANIK GUNUNG SINABUNG SEBAGAI BAHAN DASAR PEMBUATAN ADSORBEN SILIKA DENGAN METODE PERENDAMAN. Undergraduate thesis, UNIMED.
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Abstract
Telah dilakukan penelitian tentang sintesis silika gel dari abu vulkanik Gunung Sinabung yang diambil dari Desa Berastepu, Kabupaten Karo yang berjarak 1 km dari puncak Gunung Sinabung yang digunakan sebagai bahan dasar pembuatan adsorben. Kajian meliputi sintesis dan karakterisasi silika. Metode yang digunakan ialah metode sol-gel. Karakterisasi silika gel dilakukan dengan spektrofotometer inframerah (FTIR), difraktometer sinar-X (XRD), dan scaning electron microscope (SEM-EDX). Penelitian ini, pada awalnya dilakukan variasi konsentrasi Asam Klorida (HCl) 6M dan 12M dengan suhu destruksi 500°C. Kemudian dari hasil perlakuan tersebut kadar Si yang optimal dilanjut menggunakan Asam Klorida (HCl) 12M dengan suhu destruksi 750°C. Karakterisasi menggunakan FTIR menunjukkan serapan khas dari Si-O yaitu pada pita serapan 470,63 cm-1 hingga 2350,29 cm-1. Hasil karakterisasi silika mengunakan XRD menunjukkan fasa amorf. Pada uji karakterisasi SEM-EDS didapatkan bentuk morfologi yang tidak homogen dengan ukuran partikel pada sampel silika gel yang tidak seragam dikarenakan variasi suhu yang dilakukan. Serta dari hasil analisa SEM-EDS diketahui kandungan silika yang optimal didapat pada perlakuan silika sintesis menggunakan asam klorida (HCl) 12M dengan suhu penanuran (furnance) 500°C yaitu sebanyak 81.95%.
Item Type: | Thesis (Undergraduate) | ||||||
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Call Number: | SK-2018 KIM 177 | ||||||
Keywords: | Abu vulkanik Gunung Sinabung, variasi temperatur, sol-gel, sintesis, karaterisasi, FTIR, XRD, SEM-EDS | ||||||
Subjects: | Q Science > QD Chemistry | ||||||
Divisions: | Fakultas Matematika dan Ilmu Pengetahuan Alam > Kimia | ||||||
Depositing User: | Mrs Yuni Chairani | ||||||
Date Deposited: | 06 Dec 2018 15:22 | ||||||
URI: | http://digilib.unimed.ac.id/id/eprint/31462 |
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