胺基功能化HMS介孔分子筛的表征及其对重金属离子的吸附性能  

CHARACTERIZATION OF AMINO FUNCTIONALIZED HMS MESOPOROUS MOLECULAR SIEVE AND ITS ADSORPTION PERFORMANCE OF HEAVY METAL IONS

作　　者：张一平[1,2] 周春晖[1] 王学杰[2] 杨彤[2] 徐羽展[2] 

机构地区：[1]浙江工业大学绿色化学合成技术国家重点实验室培育基地,浙江杭州310032 [2]浙江教育学院化学系,浙江杭州310012

出　　处：《石油学报（石油加工）》2010年第3期376-381,共6页Acta Petrolei Sinica(Petroleum Processing Section)

基　　金：浙江省自然科学基金项目(Y405088);浙江工业大学绿色化学合成技术国家重点实验室培育基地开放研究基金资助

摘　　要：以接枝法合成了胺基功能化HMS介孔分子筛,采用元素分析、酸碱滴定、银量滴定、X-射线衍射分析、N2吸附-脱附、红外光谱和热重分析手段进行了表征,并进行了重金属离子吸附性能实验。结果表明,HMS表面成功地接枝上了胺基。胺基功能化后HMS对重金属离子吸附能力增强,并且随着样品表面胺基含量增加而增强。连续使用3次后,以HMS-NH2-6样品为例,对Cu2+和Cd2+的重金属离子吸附率仍保持在81.32%和88.54%,表明该样品具有较好的重复使用性能。The amino functionalized HMS mesoporous molecular sieve was prepared by grafting method,and characterized by element analysis,acid-base titration,argentometric titration,X-ray diffraction analysis,N2 adsorption-desorption,infrared spectra and thermogravimetric analysis.The adsorption experiments of Cu2＋ and Cd2＋ on the amino functionalized HMS were also carried out.The results indicated that the amino group was successfully grafted to the surface of HMS.The adsorption performance of heavy metal ions on amino functionalized HMS was better than that on HMS and increased along with the increase of amino content on functionalized HMS.After three times of use,the adsorption ratio of Cu^2＋ and Cd^2＋ on amino functionalized HMS sample of HMS-NH2-6 still remained at 81.32% and 88.54%,respectively,indicating that the sample had good recycle usage performance.

关 键 词：胺基功能化 介孔分子筛 接枝法 吸附 

分 类 号：TD985[矿业工程—选矿]