Ag_2Se/Se/SiO_2纳米复合物的制备及其光电性质  

Synthesis and Photoelectric Properties of Nanocomposites Ag_2Se/Se/SiO_2

作　　者：朱文晶[1] 张胜义[2] 

机构地区：[1]安徽理工大学化学工程学院,安徽淮南232001 [2]安徽大学化学化工学院,安徽合肥230039

出　　处：《西华大学学报（自然科学版）》2013年第3期18-22,共5页Journal of Xihua University:Natural Science Edition

基　　金：安徽理工大学青年教师科学研究基金项目(QN200830)

摘　　要：通过两步法成功合成了Ag2Se/Se/SiO2纳米复合物。首先采用Na2SiO3和Na2SeSO3为反应物,制得纳米Se/SiO2前驱物,然后将前驱物与AgNO3反应制得产物。讨论了产物的形成机理,利用TEM、XRD、UV-vis、FT-IR、LRS、PL等方法对产物进行了表征,并对产物的电化学和电致发光特性进行了研究。结果表明,产物有一定的电化学活性,并有较好的电致发光行为。nanocomposites Ag2Se/Se/SiO2 were successfully synthesized by two steps. Firstly, nano Se/SiO2 precursors were prepared by acidifying the mixture of sodium metasilicate（ Na2SiO3 ） and sodium selenosulphate（ Na2SeSO3 ）. Secondly, the precursors were transformed into nanocomposites Ag2Se/Se/SiO2 by reacting with aqueous AgNO3 solutions. Then the samples were characterized by Transmission electron microscopy （ TEM ） , X-ray diffraction （XRD） , Ultraviolet-visible Speetrophotometer （UV-vis） , Fourier Transform Infrared（FT-IR） , Laser Raman（LRS） and Photoluminescence（PL）. Finally, the electrochemical properties and electroehemiluminescence（ECL） of as-obtained products were studied. Results show that the compound has certain electrochemical activity, and eleetroluminescent has good performance.

关 键 词：Ag2Se SE SiO2纳米复合物 表征 电化学性质 

分 类 号：O641.6[理学—物理化学] O614.122[理学—化学]