Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8017227 | Materials Letters | 2016 | 4 Pages |
Abstract
Novel mesostructured titanosilicates (Ti-MST) have been successfully assembled from preformed silicalite-1 precursors using two-step hydrothermal synthesis method. The samples were characterized by XRD, FT-IR, UV-vis and N2 physisorption. The results show that Ti-MST zeolites are pure mesoporous phase possessing zeolitic secondary building units (SBU) in the pore walls. UV-vis confirms the existence of tetrahedral coordinated titanium. N2 physisorption exhibits that the pore diameter and BET surface area of Ti-MST-8 are 2.8Â nm and 1213Â m2/g. Ti-MST displays high hydrothermal stability in boiling water as compared with Ti-MCM-41 due to the incorporation of SBU fragments in the mesopore walls.
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Authors
Xiaobin Wang, Minyong Sun, Bo Meng, Naitao Yang, Xiaoyao Tan,