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Direct Synthesis of Titanium-Substituted Mesoporous SBA-15 Molecular Sieve under Microwave−Hydrothermal Conditions
Abstract
Titanium-substituted mesoporous SBA-15 molecular sieve has been successfully prepared at 373 K by direct synthesis under microwave−hydrothermal conditions within about 2 h. By means of X-ray diffraction, nitrogen adsorption, infrared, UV−vis diffuse reflectance, and Raman spectroscopies, a successful isomorphous substitution of titanium in the silica framework of SBA-15 samples with Si/Ti ratios of 20, 30, and 40 has been reported. The substitution of Ti for Si did not change the textural properties. The higher titanium loading leads to the formation of extraframework titanium species. These results show that microwave-assisted synthesis is an ideal approach to prepare Ti-substituted SBA-15, which is expected to be useful as a selective oxidation catalyst for reactions involving large molecules.
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Sing, K. S. W. (1985) · Pure and Applied Chemistry · doi:10.1351/pac198557040603 · Cited by 24,485
Cited by
Chemical Routes for the Transformation of Biomass into Chemicals
Corma, A., Iborra, S., & Velty, A. (2007) · Chemical Reviews · doi:10.1021/cr050989d · Cited by 5,970
Direct Synthesis of Al−SBA-15 Mesoporous Materials via Hydrolysis-Controlled Approach
Li, Y., Zhang, W., Zhang, L., Yang, Q., Wei, Z., Feng, Z., & Li, C. (2004) · The Journal of Physical Chemistry B · doi:10.1021/jp049824j · Cited by 260
Metadata
- Authors
- Newalkar, B. L., Olanrewaju, J., & Komarneni, S.
- Venue
- Chemistry of Materials
- Publisher
- American Chemical Society (ACS)
- Published
- 2001-01-11
- Volume
- 13
- Issue
- 2
- Pages
- 552-557
- ISSN
- 0897-4756 (ISSN-L)
- 1520-5002
- OpenAlex
- W2039855563
- Cited by
- 268
- References
- 1
- FWCI
- 14.28
- Type
- journal article
- Language
- en
- Open access
- closed
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- Newalkar, B. L., Olanrewaju, J., & Komarneni, S. (2001). Direct Synthesis of Titanium-Substituted Mesoporous SBA-15 Molecular Sieve under Microwave−Hydrothermal Conditions. Chemistry of Materials. https://doi.org/10.1021/cm000748g
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