Quick synthesis of nano-scale TS-1 and its catalytic properties

Nano-scale TS-1 was successfully synthesized through the modification of the conventional synthesis method. The effects of synthesis conditions (crystallization time, temperature and alcohol removal temperature) were investigated in detail. Moreover, the effect of surfactant was also studied. The results show that high quality TS-1 with crystal size of ca. 100 nm was obtained when the crystallization time was about 12 h; High crystallization temperature and alcohol removal temperature favor the incorporation of titanium into the framework. The addition of nonionic surfactant decreases the usage of template TPAOH and makes the crystal size of TS-1 more uniform. Using epoxidation of propylene and hydroxylation of phenol with dilute H2O2 as the test reactions, the catalytic properties of TS-1 were investigated. The results show that nano-scale TS-1 exhibits high performance in the propylene epoxidation; after 300 It reaction, both the conversion of H2O2 and the selectivity to PO are about 96%.