| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10248039 | Microporous and Mesoporous Materials | 2005 | 10 Pages |
Abstract
VSB-1 is one of the most important thermostable nanoporous transition metal phosphates. The synthetic condition was discussed in detail. Hydroxyl groups on the channel surface of VSB-1 play a critical role in the reactions requiring Bronsted acidity. The types of hydroxyl groups of VSB-1 material were distinguished by in situ FT-IR measurements for the samples before and after silylation. In addition, ion exchange studies showed that the hydroxyl groups in VSB-1 were acidic. The acidic site density and acid strength of VSB-1 were measured by NH3-TPD. Violet-blue photoluminescence (PL) emission bands at 412, 436 and 470Â nm were observed for VSB-1 at ambient temperature. Enhanced PL intensities were obtained by encapsulating CuO, NiO and CoO nanoclusters in the channels of VSB-1.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Catalysis
Authors
Xiuli Wang, Qiuming Gao, Chundong Wu, Juan Hu, Meiling Ruan,