The role of the seed in the seed-induced synthesis of TS-1 zeolite process was investigated in detail. The results revealed that the seed not only reduced the crystal size as reported previously but also promoted the incorporation of titanium atoms into the framework of TS-1 zeolite. Systematic investigations of the depolymerization behavior of TS-1 seeds in the tetrapropylammonium hydroxide (TPAOH) solution showed that the particle size and amount of TS-1 seeds directly affected the degree of depolymerization. Interestingly, the obtained TS-1 also had a similar catalytic performance when the completely-depolymerized seed species instead of seed crystals were added to the synthesis system. Meanwhile, the XRD pattern and IR spectra results showed that there were not any MFI framework units in completely-depolymerized seed species. Consequently, the effective ingredient of seeds was the species that had been depolymerized in the TPAOH solution.

详细研究了种子在种子诱导的TS-1沸石合成中的作用。结果表明，晶种不仅减小了先前报道的晶体尺寸，而且还促进了钛原子掺入TS-1沸石的骨架中。系统研究TS-1种子在四丙基氢氧化铵（TPAOH）溶液中的解聚行为表明，TS-1种子的粒径和数量直接影响解聚程度。有趣的是，当将完全解聚的种子物种而不是晶种加入到合成系统中时，所获得的TS-1也具有相似的催化性能。同时，XRD图谱和IR光谱结果表明，完全解聚的种子物种中没有任何MFI骨架单元。所以，