介孔SiO_2负载1,8-萘二酸酐结构表征及其荧光性能  

Structure Characterization and Luminescent Properties of Mesoporous SiO_2 Loaded With 1,8-Naphthalic Anhydride

作　　者：孙继红[1] 李育珍[1] 武霞[1] 高琳[1] 

机构地区：[1]北京工业大学环境与能源工程学院,北京1000124

出　　处：《北京工业大学学报》2013年第10期1570-1575,共6页Journal of Beijing University of Technology

基　　金：国家973计划资助项目(2009CB930200);北京市属市管高等学校人才强教计划资助项目(PHR201107104)

摘　　要：分别利用单孔道MCM-41和双模型介孔分子筛（BMMs）作为载体通过氨丙基改性和负载荧光分子1，8-萘二酸酐制备有机-无机杂化发光材料，并采用XRD、TEM、SEM、BET、FT—IR、PL等手段对样品进行了结构表征．结果表明：具有双模型介孔结构的BMMs所制备的有机-无机杂化材料，其发射峰位置（444nm）较负载到单孔道的MCM41中所制备的杂化材料的发射峰位置（450nm）蓝移更明显，主要原因是由于BMMs和MCM-41的颗粒形貌和大小不同所致．BMMs为球形颗粒（50nm），而MCM-41则为不规则颗粒且大小分布不均（1～3μm）．The organic-inorganic luminescent hybrid mesoporous materials （LHMS） was prepared via aminopropyl groups modification and subsequently 1,8-Naphthalic anhydride loading by using bimodal mesoporous materials （BMMs） and MCM-41 as carriers, respectively. The resultant hybrid materials were characterized by XRD, TEM, SEM, BET, FT-IR and PL methods. It was showed that the emission peak position of LHMS-BMMs is around 444 nm, while for LHMS-MCM-41 with about 450 nm, demonstrating that the blue-shift phenomenon of LHMS-BMMs was more remarkable than that of LHMSMCM-41. The most reason is the different morphology and related particle sizes between BMMs and MCM41 ： BMMs is of spherical particle with a size of around 50 nm and uniform mesopores （ about 3 nm）, while MCM-41 reveals irregular particle distribution in the range of 1 -3 μm, but with uniform one-dimensional mesopores （about 3 nm）.

关 键 词：双模型介孔分子筛 1  8-萘二酸酐 负载 荧光标记物 

分 类 号：O611.4[理学—无机化学]