模板法制备介微双孔HKUST-1材料

Synthesis of micro-mesoporous HKUST-1 with templates

以三嵌段共聚物P123作为模板剂,以正癸烷与TMB(1,3,5-三甲苯)作为扩孔剂,采用水热法,成功合成出了具有良好微孔与介孔结构的介微双孔HKUST-1材料,并用XRD、N2吸附-脱附实验、SEM、TEM进行表征。同时考察模板剂含量,以及不同类型的扩孔剂对于介微双孔HKUST-1材料孔结构及晶体形貌的影响。结果表明,加入模板剂P123可成功合成介微双孔HKUST-1,TMB(1,3,5-三甲苯)扩孔剂起到较好扩孔效果,有助于合成具有大介孔孔容的介微双孔HKUST-1。同时模板剂P123及扩孔剂的加入可调节HKUST-1的晶体形貌,在适当条件下可能出现片状堆叠晶体。

Micro-mesoporous HKUST-1 materials with microporous and mesoporous structure were synthesized using a triblock copolymer surfactant P123 as a template and decane and 1,3,5-tri-methybenzene(TMB) as swelling agents by a hydrothermal method.The samples were characterized by XRD,N2adsorption-desorption,SEM and TEM.The effects of the template content and different kinds of swelling agents on the pore structure and crystal morphology of HKUST-1 were studied.The results showed that the TMB was a favored swelling agent that helps to increase the mesopore volume; the addition of template and swelling agent has resulted in HKUST-1 crystals with different morphologies,and some flaky crystals under suitable conditions.