【摘要】 利用巯基硅烷偶联剂和氨基硅烷偶联剂分别通过2种不同的合成方法制备出了功能化的MCM-41介孔材料,使用TEM、XRD、N2吸附-脱附、IR、SEM等手段对产物进行了测试和表征,并将各种介孔材料用于重金属离子的吸附研究。结果表明,常温下成功合成出的功能化介孔材料均在一定程度上提高了对重金属离子的吸附能力,特别是两步法氨基功能化材料对Cu2+和Pt2+的去除率分别达到了96.42%和99.56%,但是一步法因模板剂去除不完全而在一定程度上影响了吸附效果。更多还原

【Abstract】 Functionalized MCM-41 mesoporous materials have been prepared by mercapto silane coupling agent and amino silane coupling agent through two different synthesis routes,respectively.The samples were characterized by TEM,XRD,N2physical adsorption-desorption,IR,SEM and the adsorption of the heavy metal ions was also tested.The results showed that the adsorption capacity of heavy metal ions by the functionalized mesoporous materials,synthesized at room temperature,increased to some extent.The removal rate of Cu ions and Pt ions by the two-step method amino-functionalized material reached to 96.42% and 99.56%,respectively.The adsorption effect of the one-step functionalized material was affected due to the template agent removed incompletely.更多还原