Non-hydrothermal synthesis of mesoporous materials using sodium silicate from coal fly ash |
| |
Affiliation: | 1. College of Engineering, University Tenaga Nasional, 43009 Kajang, Selangor, Malaysia;2. School of Chemical Sciences and Food Technology, Faculty of Science and Technology, University Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia |
| |
Abstract: | Siliceous mesoporous materials with pores of ordered 2-D hexagonal structure were successfully prepared without hydrothermal treatment from condensation–polymerization of various concentration of quaternary ammonium salt as structure directing agents and silica precursor from the supernatant of coal fly ash (CFA) in the presence of catalyst. The synthesized materials had high surface area of ca. 740 m2 g?1 and pore volume of ca. 0.42 mL g?1. The synthesized material exhibited a narrow size pore distribution and the mean pore diameter as measured by Dollimore–Heal method was about 2.3 nm. The formation of ammonium salt that act as precipitant during the synthesis enable the hydrolysis and co-condensation of the sodium silicate at room temperature. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|