盐酸硫胺修饰的CdSe/聚乙二醇纳米微球的制备和荧光光谱  

Preparation and Fluorescence Spectra of Thiamine Hydrochloride Modified CdSe/Polyethylene Glycol Nanospheres

作　　者：詹国庆[1] 王晴晴[1] 

机构地区：[1]中南民族大学化学与材料科学学院国家民委分析化学重点实验室,武汉430074

出　　处：《中南民族大学学报（自然科学版）》2013年第2期13-16,共4页Journal of South-Central University for Nationalities：Natural Science Edition

基　　金：国家自科基金资助项目(21275166);中南民族大学自然科学基金资助项目(XTZ09005)

摘　　要：应用一锅法合成了盐酸硫胺修饰的CdSe/聚乙二醇纳米微球,并将纯化后的产物进行了红外(FTIR)表征,X-射线光电子能谱(XPS)分析,透射电子显微镜(TEM)形貌分析及荧光分析.FTIR和XPS证实了盐酸硫胺对纳米微球的修饰,TEM显示微球呈球状,具有良好的分散性,在515nm左右发射荧光.合成最佳条件为:pH11,Cd与盐酸硫胺的摩尔比为1︰8,40℃回流2h.Thiamine hydrochloride-capped CdSe/polyethylene glycol nanospheres were synthesised via one-pot technique. The nanospheres were characterized by FFIR, XPS,TEM and fluorescence spectra. FTIR and XPS analysis confirmed the capping of the nanoparticles by the thiamine hydrochloride. TEM image displayed that the nanospheres were small and spherical in shape with good dispersion. The fluorescence spectra illustrated that the nanospheres exhibited emission at about 515nm. Optimum condition for synthesis is pH 11,40 ℃ for 2h and n（ Cd）/n（thiamine hydrochloride） = 1 ： 8.

关 键 词：盐酸硫胺 纳米微球 荧光光谱 

分 类 号：TQ316.3[化学工程—高聚物工业] O621.3[理学—有机化学]