选用TEOS（正硅酸乙酯）做为硅源,CTAB（十六烷基三甲基溴化铵）做为表面活性剂,在碱性条件下水热合成MCM-41。实验采用3-氨丙基三甲基硅烷对MCM-41进行改性,成功得到氨基改性介孔材料NH₂-MCM-41吸附剂,并使用X射线衍射（XRD）对其做了表征。考察了各种实验条件下,比如温度、吸附剂的量、pH、亚甲基蓝初始浓度等条件下MCM-41和NH₂-MCM-41对水溶液中亚甲基蓝（MB）的吸附能力。MCM-41和氨基改性介孔材料NH₂-MCM-41均为平面六方介孔结构。结果表明,温度和pH是影响MCM-41和NH₂-MCM-41对亚甲基蓝吸附的最主要的因素。随着温度的升高,材料吸附能力增强,而过高或者过低的pH都会降低MCM-41和NH₂-MCM-41对亚甲基蓝的吸附能力。

MCM-41 mesoporous molecular sieves was synthesized under basic conditions by using TEOS as silicon source in the presence of CTAB as surfactant.The MCM-41 materials was further modified with 3-aminopropyl trimethylsilane and the amino modified mesoporous material NH₂-MCM-41 absorbent was obtained successfully.Then the NH₂-MCM-41 was characterized by X-ray diffraction（XRD）.The adsorption capability of MCM-41 and NH₂-MCM-41 on methylene blue（MB） in aqueous solution was investigated under various conditions,such as temperature,amount of adsorbent,pH,initial concentration of methylene blue.The structures of MCM-41 and the amino modified mesoporous material NH₂-MCM-41 were both planar hexagonal mesoporous structures.The results showed that the temperature and pH was the crucial importance in determining the adsorption capability of MCM-41 and NH₂-MCM-41.The adsorption capability of the materials will be improved as the the temperature increase.Furthermore,too much lower or higher pH would decrease the adsorption capability of the materials.