首次以有机物钛酸丁酯为前驱体，合成了ＴｉＯ２呈单层分散状态（Ｔｉ／Ｓｉ＝０.２０）或双层分散状态（Ｔｉ／Ｓｉ＝０．３９）的介孔分子筛ＭＣＭ－４１（Ｓｉ／Ａｌ＝３５），并以 ＸＲＤ，ＦＴＩＲ，Ｎ２吸附－脱附，固体ＵＶ－ｖｉｓ 漫反射等表征手段对其结构特征和氧化钛分散状态进行了研究．结果表明： ＴｉＯ２在介孔分子筛ＭＣＭ－４１孔道中分散， ＭＣＭ－４１骨架结构结晶度降低，但是附着二层ＴｉＯ２后，仍能保持长程有序结构； ＴｉＯ２与ＭＣＭ－４１孔道表面的ＳｉＯ２以化学键连接，生成Ｓｉ－Ｏ—Ｔｉ键；无论是单层还是双层分散的 ＴｉＯ２在 ＭＣＭ－４１内孔壁均匀分散；且由于ＴｉＯ２粒子的减小使其对紫外光的吸收发生明显的蓝移现象． For the first time, organic mesoporous molecular sieves MCM-41 (Ti / Si = 0.39) with TiO2 as single-layer dispersion (Ti / Si = 0.20) Si / Al = 35) were synthesized and characterized by XRD, FTIR, N2 adsorption-desorption and solid-state UV-vis diffuse reflectance spectroscopy. The results show that TiO2 is dispersed in the mesoporous molecular sieve MCM-41, and the crystallinity of the MCM-41 framework decreases. However, the long-range ordered structure of the MCM-41 remains after the deposition of TiO2. Si-O-Ti bond was formed. Whether single layer or double layer dispersed TiO2 was uniformly dispersed in the inner wall of MCM-41, and the absorption of ultraviolet light was obviously blue-shifted due to the reduction of TiO2 particles .