THE PREPARATION AND CHARACTERIZATION OF SINABUNG VOLCANIC ASH SILICA BASED ADSORBENT

Simatupang, Lisnawaty and Devi, (2016) THE PREPARATION AND CHARACTERIZATION OF SINABUNG VOLCANIC ASH SILICA BASED ADSORBENT. Jurnal Pendidikan Kimia, 08 (03). pp. 159-163. ISSN 2085-3653

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Abstract

Synthesis of silica gel with sol-gel method has been carried out by utilizing the volcanic ash from Mount Sinabung taken from Berastepu village, Simpang Empat, Karo within 1.5 km from the summit of Mount Sinabung. Volcanic ash is one of the largest source of silica, potentially as materials for silica gel. Synthesis of silica gel in this study conducted by sol-gel method. Volcanic ash didekstruksi with 4M NaOH solution and gel formation with 3M HCl solution. Characterization of silica performed by AAS analysis, FTIR and XRD. Silica levels obtained in this study amounted to 17.85%. Based on the results of using FTIR analysis showed a cluster Si-O-Si and Si-OH stating that the silica adsorbent was successfully created. Characterization using XRD showed that the silica produced has a low degree kekristalan (amorphous form).

Item Type: Article
Keywords: Adsorbents; Silica; Volcanic ash
Subjects: Q Science > QD Chemistry
Q Science > QD Chemistry > QD450 Physical and theoretical chemistry
Divisions: Fakultas Matematika dan Ilmu Pengetahuan Alam > Kimia
Depositing User: Mrs Harly Christy Siagian
Date Deposited: 08 Mar 2019 10:53
URI: http://digilib.unimed.ac.id/id/eprint/33162

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