沸石Y用于组装纳米CdS

以沸石Y及以甲基三甲氧基硅烷对沸石Y进行表面改性后的Y（m）沸石作主体，用离子交换法制备Cd-Y及Cd-Y（m）样品，然后以硫代乙酰胺取代有毒的硫化氢作硫源，水热法制备Y-CdS及Y（m）-CdS主-客体纳米复合材料。利用粉末XRD、化学分析、红外光谱、固体扩散漫反射吸收光谱、发光研究对制备的样品进行了表征。化学分析表明，CdS已进入沸石Y（Ym）主体中：XRD结果表明，CdS进入沸石Y（Ym）后，制得的复合材料沸石骨架仍然存在，且保持高度有序性，不改变骨架的长程有序性；红外光谱结果表明，在所制备的Y-CdS及Y（m）-CdS样品中，有Si-O-Cd新键生成；固体扩散漫反射吸收光谱结果表明，沸石Y和Y（m）对可见光基本无吸收，Y-CdS和Y（m）-CdS吸收无明显差别：组装CdS后，Y-CdS及Y（m）-CdS产生发光现象。所制得的Y-CdS及Y（m）-CdS主．客体纳米复合材料具有作为悖非材料的潜在性。

Use of Zeolite Y for the Incorporation of Nanosized CdS

Zeolites Y and the Y(m) modified by methyltrimethoxysilane were used for the hosts to prepare the Cd-Y and Cd-Y(m) samples by ion-exchange method and then the Y-CdS and Y(m)-CdS host-guest nanocomposite samples were prepared by a hydrothermal method by using thiacetamide as a sulfur source instead of toxic hydrogen sulfide. By mean of powder X-ray diffraction, chemical analysis, infrared spectroscopy, solid diffusion reflectance absorption spectroscopy, luminescence investigation, the prepared samples were characterized. The results of powder XRD analyses show that after the incorparation of CdS into the Y and Y(m) zeolites the frameworks of the prepared samples still exist and keep high ordered property. The IR results show that the formation of a new bond Si-O-Cd in Y-CdS and Y(m)-CdS samples. The results of solid diffusion reflectance absorption spectra show that there is no absorption from Y and Y(modified) zeolites, and there is not obvious difference for the absorption spectra between the Y-CdS and Y(m)-CdS samples. Luminescence studies show that for the Y-CdS and Y(m)-CdS samples there appear luminescence. The host-guest nanocomposite materials prepared have the potential ability as luminescent materials.