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采用正硅酸乙酯(TEOS)作硅源,十六烷基溴化铵(CTABr)作为模板剂,首次通过全微波辐射法合成了MCM-41中孔分子筛,用XRD,TG,IR和SEM等实验技术进行了表征.结果表明,此法合成时间短,晶化只需10~15min,焙烧脱模也仅需1h左右.本实验条件下,所得分子筛晶粒分布均匀,晶形以球状为主,晶粒大小约为10μm.全微波辐射合成法,具有工艺简单,操作方便,省电节能,产品收得率高等特点.它可能为MCM-41中孔分子筛的快速合成,探索出一条新的途径.
MCM-41 mesoporous molecular sieves were synthesized by microwave irradiation for the first time using tetraethylammonium orthosilicate (TEOS) as a silicon source and cetyltrimethylammonium bromide (CTABr) as templating agents. XRD, TG, IR and SEM Other experimental techniques were characterized. The results show that the synthesis time is short, the crystallization time is only 10 ~ 15min, the baking mold release is only about 1h. Under the experimental conditions, the resulting molecular sieve uniform distribution of crystal shape, mainly spherical, grain size of about 10μm. All-microwave radiation synthesis method, with a simple process, easy operation, energy saving, high product yield and so on. It may be a rapid synthesis of MCM-41 mesoporous molecular sieve to explore a new way.