- Tytuł:
- Extraction and Characterization of Silicon Dioxide from Volcanic Ash of Mount Sinabung, Indonesia: A Preliminary Study
- Autorzy:
-
Hasanah, Moraida
Sembiring, Timbangen
Sitorus, Zuriah
Humaidi, Syahrul
Zebua, Fynnisa
Rahmadsyah - Powiązania:
- https://bibliotekanauki.pl/articles/2068469.pdf
- Data publikacji:
- 2022
- Wydawca:
- Polskie Towarzystwo Inżynierii Ekologicznej
- Tematy:
-
volcanic ash
characterization
electron microscopy
Mount Sinabung
particle size distribution - Opis:
- The study was conducted on the extraction of volcanic ash from Mount Sinabung through the co-precipitation method to recover silicon dioxide (SiO2). The X-ray fluorescence (XRF) analysis showed that the SiO2 content in volcanic ash was 48.5%, and after extraction, it was 99.1%. The morphology shown by scanning electron microscope (SEM) indicated that SiO2 looks cleaner and tends to be the same size compared to the volcanic ash sample. The average particle size of volcanic ash and extracted SiO2 were 32.28571 ± 2.51259 and 12.97521 ± 0.60657 μm, respectively. The X-ray diffractometer (XRD) analysis showed that the crystal structure of the volcanic ash sample was quartz, maghemite, and cristobalite. Besides, the extracted SiO2 had an amorphous quartz crystal structure. The test conducted using Fourier transform infrared (FTIR) resulted in the absorption of 1095.57 cm-1 and 798.53 cm-1 for the Si‒O‒Si and Si‒OH groups which were the groups of siloxanes and silanols, respectively.
- Źródło:
-
Journal of Ecological Engineering; 2022, 23, 3; 130--136
2299-8993 - Pojawia się w:
- Journal of Ecological Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł