Citation: Bo-Ting Yang, Peng Wu. Post-synthesis and catalytic performance of FER type sub-zeolite Ti-ECNU-8[J]. Chinese Chemical Letters, ;2014, 25(12): 1511-1514. doi: 10.1016/j.cclet.2014.09.003 shu

Post-synthesis and catalytic performance of FER type sub-zeolite Ti-ECNU-8

Bo-Ting Yang ,
Peng Wu ^,

1.
Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, Shanghai 200062, China

Corresponding author: Peng Wu,
Received Date: 28 July 2014
Available Online: 29 August 2014
Fund Project: We gratefully acknowledge the National Natural Science Foundation of China (Nos. 21373089, U1162102) (Nos. 21373089, U1162102) PhD Programs Foundation of Ministry of Education (No. 2012007613000) (No. 2012007613000) the National Key Technology R&D Program (No. 2012BAE05B02) (No. 2012BAE05B02)

A titanosilicate Ti-ECNU-8 with a FER type sub-zeolite structure was developed by pots-synthesis and applied to the epoxdiation of alkenes with hydrogen peroxide. A controlled acid treatment on the pure silica layered precursor PLS-3 of FER topology gave rise to a sub-zeolite ECNU-8. Composed of a collection of FER sheets without an ordered stacking manner along layer related [1 0 0] direction, the structure of ECNU-8 was constructed by a reorientation of interlayer hydrogen bond moieties caused by partial removal of interlayer organic structure directing agent. ECNU-8 possessed an external surface area enlarged by ca. 30% in comparison to corresponding three-dimensional FER zeolite. Through a solid-gas reaction with TiCl₄ vapor, tetrahedral Ti active sites were introduced into the framework. The resultant Ti-ECNU-8 retained the structural properties of ECNU-8, and exhibited an excellent catalytic performance for the epoxidation of cycloalkenes owing to the accessible Ti sites located in open reaction space.
- Sub-zeolite,
- ECNU-8,
- Titanosilicate,
- Epoxidation,
- Layered zeolite
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