Ti-MCM-41 with Various Ti Contents: Synthesis, Characterization and Catalytic Properties in Oxidation of .ALPHA.-Pinene
| Autor: | Nguyen Thi Thu Ha, Tran Thi Nhu Mai, Giang Thi Phuong Ly, Nguyen Thanh Binh, Le Thanh Son, Nguyen Van Quyen |
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| Rok vydání: | 2011 |
| Předmět: |
Materials science
Metallurgy Oxide chemistry.chemical_element Bioengineering Surfaces and Interfaces Condensed Matter Physics Surfaces Coatings and Films Catalysis chemistry.chemical_compound chemistry MCM-41 Mechanics of Materials Yield (chemistry) Mesoporous material Spectroscopy Selectivity Biotechnology Titanium Nuclear chemistry |
| Zdroj: | e-Journal of Surface Science and Nanotechnology. 9:539-543 |
| ISSN: | 1348-0391 |
| DOI: | 10.1380/ejssnt.2011.539 |
| Popis: | Ti-MCM-41 with various ratios Ti/Si was synthesized successfully and characterized by some measurements as XRD, DR-UV-Vis, TEM, EDAX and N2-Adsorption. The peak in bands 230 nm in DR-UV-Vis spectroscopy showed that Ti was in tetrahedral coordination. The TEM, EDAX images indicated that the obtained materials were of ordered mesoporous structures in the samples with low ratio of Ti/Si. Moreover, increasing the thickness of material wall calculated by BJH method was due to the incorporation of titanium in the framework. The oxidation of α-pinene over Ti-MCM-41 with various ratios Ti/Si indicated that the possibility of Ti in the tetrahedral coordination gave a priority to the selectivity of α-pinene oxide. The Ti content of materials system increased, consequently the conversion of the reaction and the pinandiol product yield increased. [DOI: 10.1380/ejssnt.2011.539] |
| Databáze: | OpenAIRE |
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