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在醇水表面活性剂体系中以TiCl4和水玻璃为原料通过水热合成得到了有序的介孔分子筛Ti–MCM–41,并用小角X射线衍射、Fourier变换红外光谱、紫外–可见光谱、N2吸附技术和高分辨透射电镜技术进行表征。结果表明:Ti4+以四配位的形式结合在介孔分子筛的骨架结构中,在分子筛孔道内壁具有初级沸石结构单元;分子筛具有双孔结构,最可几孔径分别在2.6nm和3.85nm,分子筛比表面积达到1030m2/g,与高分辨透射电镜结果一致。
The ordered mesoporous molecular sieve Ti-MCM-41 was synthesized by hydrothermal method using TiCl4 and sodium silicate as raw materials in the alcohol-water surfactant system. The results of X-ray diffraction, Fourier transform infrared spectroscopy, UV- Adsorption technology and high-resolution transmission electron microscopy. The results showed that Ti4 + was incorporated into the framework structure of mesoporous molecular sieve in the form of four coordination sites and had primary zeolite structural units on the inner wall of molecular sieve pore. The molecular sieve possessed double pore structure with the most probable pore diameters of 2.6 nm and 3.85 nm, respectively. Surface area of 1030m2 / g, consistent with high-resolution transmission electron microscopy results.