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Sulphated Mesoporous Silica Synthesized from Rice Husk Ash for Chalcone
| Content Provider | Semantic Scholar |
|---|---|
| Author | Noor, Muhammad |
| Abstract | Chalcone is an aromatic ketone that have important biological properties. It can be prepared by an aldol condensation between a benzaldehyde and an acetophenone in the presence of catalyst. A series of S-MCM-48 (SO42 / MCM-48) was synthesized in this study. Rice husk ash (RHA), an agriculture waste was used as a silica (Si02) source to synthesis the MCM-48 mesoporous molecular sieves by mean of hydrothermal method and suiphation medification using sulfuric acid (H2SO4) as the sulphate sources. The pore packing order of the SO 42-doped material dependend strongly on the synthesis conditions such as aging temperature, pH of reaction mixture and dopant concentration. The physicochemical properties of mesoporous material was characterized by X-Ray diffraction (XRD), surface area analysis (BET), FourierTransform Infrared Spectroscopy (FTIR) and Thermogravimetric Analyzer (TGA). A simple preparation method was used to generate strong acidity catalyst by introducing sulphate groups onto the surface of MCM-48. The prepared sulphated MCM-48 has been used to catalyzed benzaldehyde and acetophenone and was analyzed by using GC. The conversion of acetophenone was calculated and the best conversion was 85.5% by using S-MCM48(60) catalysts. Keyword: SO42-doped MCM-48; Heterogeneous catalyst; chalcone; mesoporous materials. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://umpir.ump.edu.my/id/eprint/7820/1/NOR_ILLIANA_BINTI_MOHD_NOOR.PDF |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
