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
（ CdS/ TiO2 ）/ MCM-41 loaded nanometer photocatalyst was prepared by the sol-gel method and dipping process, the photocatalytic degradation of methyl thionine chloride in water was investigated by using the photocat...（ CdS/ TiO2 ）/ MCM-41 loaded nanometer photocatalyst was prepared by the sol-gel method and dipping process, the photocatalytic degradation of methyl thionine chloride in water was investigated by using the photocatalyst. The experimental results show that the optimum concentration of CdS over TiO2 was 3% （ molar ratio ）, the photocatalytic activity was enhanced when making TiO2 the anatase ptase with a rise of the roasting temperature, and the carrier, mesoporous molecular sieve MCM-41, was beneficial to improving the photocatalytic activity of TiO2 for photocatalytic degradation of methyl thionine chloride. The morphology and the crystalline phase of the photocatalyst were discussed by means of XRD and SEM techniques, and the reaction mechanism of catalytic properties was also discussed.展开更多
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.
基金Funded by Special Fund of Education Department of ShaanxiProvince(No.03JK144)
文摘（ CdS/ TiO2 ）/ MCM-41 loaded nanometer photocatalyst was prepared by the sol-gel method and dipping process, the photocatalytic degradation of methyl thionine chloride in water was investigated by using the photocatalyst. The experimental results show that the optimum concentration of CdS over TiO2 was 3% （ molar ratio ）, the photocatalytic activity was enhanced when making TiO2 the anatase ptase with a rise of the roasting temperature, and the carrier, mesoporous molecular sieve MCM-41, was beneficial to improving the photocatalytic activity of TiO2 for photocatalytic degradation of methyl thionine chloride. The morphology and the crystalline phase of the photocatalyst were discussed by means of XRD and SEM techniques, and the reaction mechanism of catalytic properties was also discussed.
