Open AccessSYNTHESIS AND CHARACTERIZATION OF MESOPOROUS ALUMINOSILICATES Al-MCM-41 AND INVESTIGATION OF ITS THERMAL, HYDROTHERMAL AND ACIDITY STABILITY
Author(s) -
Suyanta Suyanta,
Narsito Narsito,
Endang Tri Wahyuni,
Triyono Triyono
Publication year - 2010
Publication title -
indonesian journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.273
H-Index - 14
eISSN - 2460-1578
pISSN - 1411-9420
DOI - 10.22146/ijc.21478
Subject(s) - chemistry , aluminosilicate , calcination , thermal stability , mesoporous material , hydrothermal circulation , mcm 41 , sodium hydroxide , fourier transform infrared spectroscopy , sodium silicate , hydroxide , hydrothermal synthesis , inorganic chemistry , alkali metal , nuclear chemistry , chemical engineering , catalysis , organic chemistry , engineering
The synthesis and characterization of mesoporous aluminosilicates Al-MCM-41 and the investigation of its thermal, hydrothermal and acidity stability have been done. Al-MCM-41 were synthesized by hydrothermal method to the mixture of sodium silicate as Si source, aluminium hydroxide as Al source, sodium hydroxide as a solvent, and cethyltrimethylammoniumbromide (CTAB) as structure directing agent. The reaction were carried out in alkaline condition (pH = 10.2) at 383 K for about 24 h, followed by calcination at 723 K for about 10 h. The synthesized crystals were characterized using FTIR spectroscopy, X-ray diffraction and N2 fisisorption methods. The result showed that Al-MCM-41 sample with hexagonal structure was formed, it has a good in thermal and acid stability, but the structure disintegrated in an alkaline solution (pH = 10) and in boiled water. Keywords: synthesis, characterization, Al-MCM-41, stability