CAJ | 학술논문

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1 030 m2/g,与高分辨透射电镜结果一致.
재순수표면활성제체계중이TiCl4화수파리위원료통과수열합성득도료유서적개공분자사Ti-MCM-41,병용소각X사선연사、Fourier변환홍외광보、자외-가견광보、N2흡부기술화고분변투사전경기술진행표정.결과표명:Ti4+이사배위적형식결합재개공분자사적골가결구중,재분자사공도내벽구유초급비석결구단원;분자사구유쌍공결구,최가궤공경분별재2.6nm화3.85nm,분자사비표면적체도1 030 m2/g,여고분변투사전경결과일치.
High-ordered, Ti4+-incorporated, bimodal mesoporous material Ti-MCM-41 was synthesized from glass water and TiCl4 in a water-ethanol-surfactant system and characterized by small-angle X-ray diffraction, Fourier transform infrared spectroscopy, ultraviolet-visible spectroscopy, N2 adsorption-desorption, and high resolution transmission microscopy techniques. The results show that Ti4+ was in four coordinate in the framework of MCM-41. Furthermore, the zeolite primary units were formed in the framework. The Ti-MCM-41 sample had a bimodal mesoporous structure with the most probable pore sizes of 2.60 nm and 3.85 nm. The specific surface area of Ti-MCM-41 was 1 030 m2/g.