多金属氧酸盐/中性红纳米复合膜的制备、表征和应用  

Preparation,characteristics and fluorescent property of multilayer films based on polyoxometalate and neutral red

作　　者：魏晓毳[1,2] 孙玉风[1] 许林[1] 

机构地区：[1]东北师范大学化学学院,吉林长春130024 [2]白城医学高等专科学校,吉林白城137000

出　　处：《渤海大学学报（自然科学版）》2011年第1期77-82,共6页Journal of Bohai University:Natural Science Edition

基　　金：国家自然科学基金资助项目(No:20671017)

摘　　要：采用层接层自组装方法(LbL),将多金属氧酸盐H_3PMo_(12)O_(40)·2H_2O,(PMo_(12))和中性红(NR)制备成纳米复合膜PMo_(12)/NR,并通过紫外可见光谱,红外光谱和X-射线光电子能谱对复合膜进行表征。研究表明:UV光处理前后的复合膜,紫外可见光谱和红外光谱没有发生显著的变化。红外光谱显示:在UV光处理后未形成Mo=N共价键。而且,多酸的存在引起复合膜呈现了荧光淬灭现象,这可望应用于荧光传感器。The nanocomposite film containing polyoxometalate（H3PMo12O40·2H2O,PMo12） and dye neutral red（NR） is fabricated by layer - by - layer method（LbL）.The multilayer PMol2/NR films characterized by UV - vis spectroscopy,FTIR spectra,X - ray photoelectron spectra（XPS）.UV - vis spectra and FTIR spectrum reveal no different characters between multilayer films and the multilayer films dealed with ultraviolet light.IR spectrum discloses that it is impossible to form Mo = N covalent bond under the ultraviolet light irradiation.Fluorescence spectra shows that PMo12 causes the fluorescence decay of NR,which maybe used as fluorescence analysis.

关 键 词：多金属氧酸盐 中性红 层接层自组装方法 荧光淬灭 

分 类 号：P145.8[天文地球—天体物理]