# Synthesis of high surface area mesoporous silica SBA-15 by adjusting hydrothermal treatment time and the amount of polyvinyl alcohol
> Thahir R.

URL kanonis: https://discover.unhas.ac.id/publications/synthesis-of-high-surface-area-mesoporous-silica-sba-15-by-adjusting-hydrotherma
Jurnal / Konferensi: Open Chemistry
Tahun terbit: 2019
DOI: https://doi.org/10.1515/chem-2019-0106
ISSN: 23915420
Kuartil SJR: Q3
Citations: 54

## Authors
- Thahir R.

## Abstract
Abstract The high surface area of mesoporous silica SBA-15 has been synthesized successfully by hydrothermal treatment with direct addition of PVA, triblock copolymer (P123) as a direct structure agent and tetraethyl orthosilicate (TEOS) as a precursor. The mesoporous silica SBA-15 have been characterized with nitrogen physisorption, scanning electron microscopy, Fourier transformed infrared spectroscopy, and x-ray diffraction. Measurement of nitrogen sorption indicated that with the addition of PVA, the surface area is increased but the pore volume and pore diameter is not significantly. The short time of hydrothermal treatment (20 h) and using x-ray diffraction, showed that the morphological structure of silica SBA-15 can be changed to a orthorhombic crystal system. The result of the FTIR and SEM-EDX characteristic indicated the functional groups and morphology of the SBA-15 with a narrow pore size distribution. The BET method has exhibited the largest surface area 1726 m 2 /g, pore volume 1.4 cm 3 /g, and pore diameter 3.2 nm. It can be suggested that the silica mesoporous SBA-15 will have potential application prospect in catalysis, storage, and adsorbent.

## Keywords
- Mesoporous material
- Materials science
- Chemical engineering
- Tetraethyl orthosilicate
- Fourier transform infrared spectroscopy
- Mesoporous silica
- Specific surface area
- BET theory
- Mesoporous organosilica
- Sorption
- Scanning electron microscope
- Physisorption
- Hydrothermal circulation
- Adsorption
- Catalysis
- Nanotechnology
- Chemistry
- Organic chemistry
- Composite material
- Engineering

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Sumber: Discover Unhas — RIMS Universitas Hasanuddin.
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