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《Materials Review》 2005-10
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The Study of Ti Ions Post-synthesis in Mesoporous MCM-41

WU Xiuwen MA Hongwen YANG Jing Material Science and engineering institue,China University of Geosciences,Beijing 100083 LI Zhihong WU Zhonghua Beijing Synchrotron Radiation Laboratory,Institute of High Energy Physics,Chinese Academy of Science,Beijing 100039  
Under normal temperature,the mesoporous molecular sieve Ti-MCM-41 is post-synthesized in air. The mediated solution is absolute ethanol.Two factors,different Ti/Si molar ratios and Ti sources,are concerned in the process of synthesis Ti-MCM-41.With the molar ratio of Ti/Si(0.01~0.10)increasing.Ti-MCM-41 diffraction parameter d_(100) diminishes from 3.98 nm to 3.65 nm;and compared with MCM-41,the intensity of 100 peak decreases from 33% to 84%.Butyl titanate is a suitable Ti source compared with titanium tetrachloride during the synthesis of Ti-MCM-41.The result of SAXS is better consistent with TEM than N_2 absorption isotherm in the pore diameter of Ti-MCM-41(SAXS,2.00 nm;TEM,2.15 nm;N_2 absorption isotherm,3.60 nm).
【Fund】: 教育部留学回国人员科研启动资金资助(2-2-03-07)
【CateGory Index】: TB383.1
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