介微材料孔Beta-KIT-6的合成及影响因素探析

Synthesis and influence factors of meso-microporous materials Beta-KIT-6

采用纳米组装法,在酸性条件下,以Beta沸石微晶为原料,P123和正丁醇为介孔导向剂,合成出Beta-KIT-6介微孔复合材料。分析了合成过程中Beta-KIT-6介孔有序度不同的原因。探索了正丁醇用量、HCl浓度、Beta沸石微晶质量分数对介微孔复合材料Beta-KIT-6介孔有序度的影响。结果表明:当正丁醇和TEOS摩尔比为1.5,正丁醇和P123质量比为100,HCl浓度为0.75 mol/L,Beta/P123质量比为88时,所合成的介微孔复合材料具有较好的介孔有序度。

The meso-microporous materials of Beta-KIT-6 （BK） are synthesized from zeolite Beta nanoclusters by self-assembly method using P123 and n-butyl alcohol as the mesostructure directing agent under the acid condition.The difference of mesoporous degree of order in synthetic process of Beta-KIT-6 is investigated.The influence of n-butyl alcohol consumption,concentration of HCl and content of Beta zeolite crystallites on the mesoporous degree of order of BK is explored.The results indicate that meso-microporous materials of Beta-KIT-6 have better mesoporous degree of order under the following conditions：1.5 mole ratio of n-butyl alcohol and TEOS,100 mass ratio of n-butyl alcohol and P123,0.75 mol/L of HCl concentration and 88 mass ratio of Beta and P123.