【摘要】 本研究选用离子液体（1-丁基-3-甲基咪唑氯盐，[BMIm]Cl）为模板剂兼溶剂，采用离子热合成法成功制备了结晶度高、孔道开放、形貌规整的ZSM-22分子筛.通过系统调控初始凝胶配比，如NH₄F、[BMIm]Cl、H₂O投料量和晶化时间，实现了对ZSM-22分子筛晶体尺寸和晶化过程的精确控制.研究发现，增加[BMIm]Cl用量、减少水含量可显著提高合成体系的粘度和过饱和度，从而有效促进大量晶核的形成，抑制晶体的生长，制备得到了晶粒长度为700 nm～800 nm，宽度为50 nm～80 nm的ZSM-22分子筛，且与常规合成路线所得分子筛晶粒尺寸相近.经对晶化过程考察认为，[BMIm]Cl和合成温度是缩短ZSM-22分子筛诱导期，加速其成核和晶体生长过程的关键因素.本研究为ZSM-22分子筛的绿色可持续合成提供了新的思路，为其在催化、吸附、分离等领域的应用开辟了广阔前景.更多还原

【Abstract】 In this study, ZSM-22 zeolite with high crystallinity, open pores, and regular morphology were successfully prepared by the ionothermal synthesis, using ionic liquid（1-butyl-3-methylimidazolium chloride, [BMIm]Cl）as a template and solvent. By systematically regulating the ratio of initial gel,including NH₄F, [BMIm]Cl, and H₂O feed amount, and crystallization temperature and time, the crystal size and crystallization process of ZSM-22 zeolites were precisely controlled. The study found that increasing the amount of [BMIm]Cl and reducing the H₂O content significantly increased the viscosity and supersaturation of the synthesis system, thereby effectively promoting the formation of a large number of crystal nuclei and inhibiting the growth of crystals. The resulting ZSM-22 zeolites with a crystal length of 700 nm～800 nm and a width of 50 nm～80 nm were well-crystallized, similar to thecrystal size obtained from the conventional synthesis route. After investigating the crystallization process, it was believed that [BMIm]Cl and synthesis temperature are the critical factors in shortening the induction period of the ZSM-22 zeolite and accelerating its nucleation and crystal growth process.This study provided a new idea for the green and sustainable synthesis of ZSM-22 zeolite and opens up broad prospects for its application in catalysis, adsorption, separation, and other fields.更多还原