Titanium silicalite 1 (TS 1) zeolite is synthesized by different methods. Raman spectroscopic characterization shows that titania species in TS 1 prepared by different methods are different.

• 采用不同方法合成了钛硅分子筛TS 1.；Raman光谱表征表明；不同方法合成的TS 1分子筛中钛的分散状态不同