A convenient and economic method for preparing highly ordered MCM 41 was studied in an open vessel by using waterglass as the silicon source. XRD, nitrogen adsorption and TEM show that the product has a highly ordered...A convenient and economic method for preparing highly ordered MCM 41 was studied in an open vessel by using waterglass as the silicon source. XRD, nitrogen adsorption and TEM show that the product has a highly ordered structure and the hexagonal arrangements of uniformly size pores distribution.展开更多
The β CD was first successfully introduced into the pore of MCM 41 mesoporous sieve, with γ glycidoxypr opyltrimethoxy silane (GPTS) as a coupling agent. An inorganic/organic complex mesoporous material β CD MCM 41...The β CD was first successfully introduced into the pore of MCM 41 mesoporous sieve, with γ glycidoxypr opyltrimethoxy silane (GPTS) as a coupling agent. An inorganic/organic complex mesoporous material β CD MCM 41 was synthesized, and characterized by XRD, nitrogen adsorption desorption, elemental analysis, FT IR and spectrophotofluorimetry. The results show that β CD molecular not only get into the modified inner wall, but also remain the ordered mesoporou structure of MCM 41.展开更多
It was proved by ICP, fluorescence spectra and N 2 adsorption that the rare earth complex [C 5H 5NC 16H 33] [Eu(TTA) 4] is in the channel of Si-MCM-41 in the course of assembly. The rare earth complex of 67.9% is in t...It was proved by ICP, fluorescence spectra and N 2 adsorption that the rare earth complex [C 5H 5NC 16H 33] [Eu(TTA) 4] is in the channel of Si-MCM-41 in the course of assembly. The rare earth complex of 67.9% is in the channel, suggesting that the assembly of the complex molecular on the mesoporous MCM-41 was carried out mainly in the channel.展开更多
文摘A convenient and economic method for preparing highly ordered MCM 41 was studied in an open vessel by using waterglass as the silicon source. XRD, nitrogen adsorption and TEM show that the product has a highly ordered structure and the hexagonal arrangements of uniformly size pores distribution.
文摘The β CD was first successfully introduced into the pore of MCM 41 mesoporous sieve, with γ glycidoxypr opyltrimethoxy silane (GPTS) as a coupling agent. An inorganic/organic complex mesoporous material β CD MCM 41 was synthesized, and characterized by XRD, nitrogen adsorption desorption, elemental analysis, FT IR and spectrophotofluorimetry. The results show that β CD molecular not only get into the modified inner wall, but also remain the ordered mesoporou structure of MCM 41.
文摘It was proved by ICP, fluorescence spectra and N 2 adsorption that the rare earth complex [C 5H 5NC 16H 33] [Eu(TTA) 4] is in the channel of Si-MCM-41 in the course of assembly. The rare earth complex of 67.9% is in the channel, suggesting that the assembly of the complex molecular on the mesoporous MCM-41 was carried out mainly in the channel.
