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Use of rice husk ash as only source of silica in the formation of mesoporous materials
| Content Provider | Scilit |
|---|---|
| Author | Schwanke, A. J. Melo, D. M. A. Silva, A. O. Pergher, S. B. C. |
| Copyright Year | 2013 |
| Description | This paper reports the synthesis of molecular sieves similar to MCM-41 using rice husk ash as only source of silica. For comparison purposes, a standard synthesis was performed using aerosil 200 commercial silica. The rice husk silica was obtained by heating treatment at 600 ºC and leaching for 2 h in reflux with HCl 1mol.L-1 and used in the synthesis. The samples prepared were characterized by N2 adsorption, X-ray diffraction (XRD), scanning electronic microscopy (SEM) and thermogravimetric analysis (TG). By type-IV adsorption isotherms, the formation of mesoporous materials was observed. XRD showed the formation of hexagonal unidirectional pore materials similar to MCM-41. By SEM, it could be observed that the rice husk has fibrous aspect and that synthesis using calcined and leached rice husk did not react entirely because silica was only partially dissolved. |
| Related Links | http://www.scielo.br/scielo.php?script=sci_pdf&pid=S0366-69132013000100022&lng=en&nrm=iso&tlng=en |
| Ending Page | 185 |
| Page Count | 5 |
| Starting Page | 181 |
| ISSN | 03666913 |
| e-ISSN | 03666913 |
| DOI | 10.1590/s0366-69132013000100022 |
| Journal | Cerâmica |
| Issue Number | 349 |
| Volume Number | 59 |
| Language | English |
| Publisher | FapUNIFESP (SciELO) |
| Publisher Date | 2013-03-01 |
| Access Restriction | Open |
| Subject Keyword | Cerâmica Chemical Engineering Mesoporous Materials Husk Ash Rice Husk Use of Rice |
| Content Type | Text |
| Resource Type | Article |
| Subject | Ceramics and Composites |
