Effect of post-synthesis hydrothermal treatment on pore size expansion of silica mesoporous molecular zeolite

摘要：

The cheaper industrial inorganic silicate Na2O·3.3SiO2 was selected as silica source, using CH3(CH2)15·(CH3)3NBr surfactant as template, adding the organic amine by post-synthesis hydrothermal treatment, and the supported vanadium mesoporous materials was prepared by hydrothermal synthesis. The results indicated the pore size expansion of silica mesoporous molecular zeolite was different according with the different organic amine and post-hydrothermal temperature in the mesoporous materials synthesis. It was shown that the use of DMDA and TEA to restructure MCM-41 with 3.94 nm pores prepared under conventional hydrothermal synthesis afforded mesoporous silica with up to 6.62 and 9.30 nm pores, respectively. 2.36 times expansion of pore size for TEA and 68％ improvement for DMDA was achieved successfully.

关键词： Mesoporous Molecular Sieve V-MCM-41 Tunable pore size

作者: 许俊强 储伟 郭芳

作者单位: 重庆工学院生物工程学院,重庆 400050 四川大学化学工程学院,成都 610065

会议类型: 国际会议

会议名称: 第六届中国国际纳米科技研讨会

会议地点: 成都

会议语种:英文

在线出版日期: 2007-11-19（万方平台首次上网日期，不代表论文的发表时间）