ZnSe quantum dots(QDs),assembled into the ordered channels of mesoporous silica(SBA-15) under water-free and oxygen-free conditions by hot soap method,were investigated.The microstructures of the mesoporous silica with ZnSe QDs were characterized by X-ray diffraction,transmission electron microscopy image and energy dispersive spectrometry.Their optical properties were studied by UV-visible absorption and fluorescence spectrometry.The results show that the ZnSe QDs have been loaded into the ordered SBA-15 channels.Compared with the bulk ZnSe,the absorbance spectra of the ZnSe QDs immobilized in the channels exhibit a significant blue-shift,which is attributed to the quantum size effect.