氨基功能化MCM-48介孔材料的制备及选择性吸附卷烟主流烟气中氰化氢的性能  

Synthesis of Amino-functionalized MCM-48 Mesoporous Silica and Its Performance for the Selective Adsorption of Hydrogen Cyanide in Cigarette Smoke

作　　者：沈凯[1] 夏倩[1] 盛培秀[2] 唐荣成[2] 徐建[1] 刘金莉[1] 李霞[1] 储国海[1] 周国俊[1] 詹望成[3] 卢冠忠[3] 郭杨龙[3] 

机构地区：[1]浙江中烟工业有限责任公司技术中心,浙江杭州310024 [2]南通烟滤嘴有限责任公司技术中心,江苏南通226001 [3]华东理工大学工业催化研究所,上海200237

出　　处：《化学世界》2014年第11期650-654,共5页Chemical World

基　　金：国家973计划项目(2010CB732300);国家烟草专卖局资助项目(110201001004)

摘　　要：以纯硅MCM-48为原料合成了表面氨基功能化的MCM-48材料,进行了X射线衍射(XRD)、氮气吸附、SEM扫描电镜和FT IR红外光谱等表征。FT IR和元素分析的结果表明,3-氨基丙基三乙氧基硅烷通过与纯硅MCM-48表面的Si-OH基团反应,使氨基嫁接在纯硅Si-MCM-48表面。XRD和N2吸附说明纯硅MCM-48在嫁接氨基后仍保持Ia3d立体结构,但与纯硅MCM-48相比,氨基功能化的MCM-48的比表面积、孔容和孔径均有所下降。将氨基功能化的MCM-48作为吸附剂加入卷烟的过滤嘴,对于主流烟气中氰化氢(HCN)具有很好的选择性吸附功能。Amino functionalized MCM-48 mesoporous silica was successfully synthesized by post-synthesis treatment of pure silica MCM-48（Si-MCM-48）,and was characterized by X-ray diffraction（XRD）,nitrogen adsorption,scanning electron microscopy（SEM）and FT-IR spectroscopy.The results showed that amino groups were successfully grafted on Si-MCM-48 surface by the reaction between（3-aminopropyl）triethoxysilane and Si-OH groups on Si-MCM-48 surface,which was confirmed by the results from FT-IR spectroscopy and the elemental analysis.XRD and N2 adsorption results exhibited that the cubic Ia3 d structure of Si-MCM-48 was maintained after aminosilane grafting,but the specific surface area,pore volume and pore size of amino functionalized Si-MCM-48 decreased compared with Si-MCM-48.When amino functionalized Si-MCM-48 was added in the cigarette filter and used as the adsorbent,it possessed excellent performance for the selective reduction of HCN amount in cigarette mainstream smoke.

关 键 词：介孔二氧化硅 氨基 选择性 氰化氢 

分 类 号：TS411[农业科学—烟草工业]