CAJ | 학술논문

以煅烧的分子筛SBA-15为主体材料,二溴对氯偶氮胂(dibromochloro-arsenazo,DBC-ASA)作客体材料,以水为介质,用液相移植法制备了(SBA-15)-(DBC-ASA)主客体复合材料.用粉末X射线衍射、Fourier变换红外光谱、固体扩散漫反射吸收光谱及发光研究表征了所制得的复合材料(SBA-15)-(DBC-ASA)的性质.X射线衍射结果表明:(SBA-15)-(DBC-ASA)主客体复合材料分子筛骨架存在且有序度高.红外光谱分析表明:较低量的DBC-ASA引入SBA-15分子筛中,分子筛骨架结构仍然存在,但引入量较大时,分子筛的骨架有序度明显降低.固体扩散漫反射吸收光谱研究表明:DBC-ASA处于分子筛SBA-15孔道内,分子筛孔道对DBC-ASA具有立体限域效应.发光光谱分析表明:所制得的样品的非辐射过程强,导致电子-光子作用极强,产生电荷迁移和跃迁,发生Stokes位移,光谱谱带变宽.
이단소적분자사SBA-15위주체재료,이추대록우담신(dibromochloro-arsenazo,DBC-ASA)작객체재료,이수위개질,용액상이식법제비료(SBA-15)-(DBC-ASA)주객체복합재료.용분말X사선연사、Fourier변환홍외광보、고체확산만반사흡수광보급발광연구표정료소제득적복합재료(SBA-15)-(DBC-ASA)적성질.X사선연사결과표명:(SBA-15)-(DBC-ASA)주객체복합재료분자사골가존재차유서도고.홍외광보분석표명:교저량적DBC-ASA인입SBA-15분자사중,분자사골가결구잉연존재,단인입량교대시,분자사적골가유서도명현강저.고체확산만반사흡수광보연구표명:DBC-ASA처우분자사SBA-15공도내,분자사공도대DBC-ASA구유입체한역효응.발광광보분석표명:소제득적양품적비복사과정강,도치전자-광자작용겁강,산생전하천이화약천,발생Stokes위이,광보보대변관.
Molecular sieve (SBA - 15)-(dibromochloro-arsenazo, DBC-ASA) host-guest composite materials were prepared by a liquid-phase grafting method using the calcined SBA- 15 molecular sieve as the host material, the DBC-ASA solution as the guest material, and water as the medium. The composite materials (SBA- 15)-(DBC-ASA) were characterized by X-ray diffraction(XRD), Fourier transform infrared(FTIR)spectra, solid state diffuse reflectance absorption spectra, and luminescence studies. The XRD results show that the molecular sieve framework in the (SBA- 15)-(DBC-ASA) host-guest composite materials is retained, and is highly ordered. The FTIR spectra indicate that the framework of the SBA- 15 molecular sieve is retained when a small amount of DBC-ASA is incorporated into it, the order degree of the molecular sieve decreases when a large amount of DBC-ASA is incorporated into it. The solid state diffuse reflectance absorption spectra show that DBC-ASA is located in the channel of the SBA - 15 molecular sieve, and the channel of SBA - 15 has stereoconfinment. The luminescence spectra show a strong non-radiation transition processes in the prepared samples, and this results in very strong electron-photon interaction causing a charge transfer transition. The Stokes displacement takes place and the spectrum bands broaden.