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Studies of Host-guest Nanocomposite Material (NaZSM-5)-AgI
Zhai Qingzhou*1, Cai Jianyan1,2, Li Jingmei1, Hu Weihua1, Zhang Xiaoxia1, Geng Aifang1, Shen Zhaoying1, Wang Junfan1
1.Research Center for Nanotechnology, Changchun University of Science and Technology, Changchun 130022;2.College of Vocational Technology, Changchun University, Changchun 130022
Abstract:
Silver iodide nanoclusters were successfully prepared in the channels of NaZSM-5 zeolite by a thermal diffusion method. Chemical analysis, powder X-ray diffraction, nitrogen adsorption technique, and infrared spectroscopy were used to characterize the prepared samples. The solid diffuse reflectance absorption spectra and luminescence properties were studied. Chemical analysis showed that the guest silver iodide was incorporated into the host NaZSM-5. Powder X-ray diffraction analysis showed that the framework of NaZSM-5 still remained in the (NaZSM-5)-AgI samples. Infrared spectra indicate that the vibration of the framework of NaZSM-5 had little variation attributable to the encapsulation of AgI in the host. This phenomenon is due to the incorporation of silver iodide into NaZSM-5. Investigation of the absorption revealed that the guest silver iodide was encapsulated in the channels of NaZSM-5. Solid diffuse reflectance absorption spectra indicated that the absorption of prepared (NaZSM--5)-AgI host-gust samples had nothing with the host NaZSM-5. The absorption spectra of the (NaZSM-5)-AgI samples were influenced by the size of AgI nanoclusters. Luminescence investigation showed that the prepared samples had a high energy band gap and a strong radiation process. The (NaZSM-5)-AgI samples are luminescient composite materials.
Key words:  NaZSM-5 zeolite host, AgI guest, Host-guest nanocomposite material, Characterization
FundProject:
附件
(NaZSM-5)-AgI主体-客体纳米复合材料的研究
翟庆洲*1, 蔡建岩1,2, 李景梅1, 胡伟华1, 张晓霞1, 耿爱芳1, 申兆英1, 王俊凡1
1.长春理工大学,纳米技术研究中心,长春,130022;2.长春大学,职业技术学院,长春,130022
摘要:
用热扩散法成功地把AgI组装于NaZSM-5的孔道中,对制备的样品(NaZSM-5)-AgI进行了化学分析、粉末XRD分析、化学吸附、红外光谱表征,研究了所制备的样品固体扩散漫反射吸收光谱及发光性质.化学分析表明, AgI已进入NaZSM-5主体中.粉末XRD分析显示了组装AgI后NaZSM-5沸石骨架依然存在,红外光谱表明了(NaZSM-5)-AgI样品骨架振动与NaZSM-5的骨架振动有细微差别,这主要是由组装了AgI引起的.吸附研究说明了AgI已进入NaZSM-5的孔道.固体扩散漫反射吸收光谱表明,
关键词:  NaZSM-5沸石主体  AgI客体  主-客体纳米复合材料  表征
DOI:10.1088/1674-0068/18/6/1029-1033
分类号: