Hierarchical porous cellulose/lanthanide hybrid materials as luminescent sensor

查看全文 作　　者：Wentao [1]Fan;Jiaojiao [1]Du;Junfeng [1]Kou;Zeyu [1]Zhang;Fengyi [1]Liu

机构地区：[1]College of Chemistry and Chemical Engineering,Yunnan Normal University

出　　处：《Journal of Rare Earths》索引2018年第36卷第10期,共8页

基　　金：Project supported by the National Natural Science Foundation of China(21161023,21661034) 摘　　要：Photoluminescent hybrid materials containing carboxymethyl cellulose and lanthanide ions(Eu3+, Tb3+)were prepared by a facile method under ambient conditions. Lanthanide ions were covalently grafted to the cellulose framework through coordination with the carboxylic groups of the cellulose. Hybrid materials were fabricated as hydrogel and aerogel. As shown by SEM and pore parameters, aerogel materials which were obtained by supercritical CO_2 drying show hierarchical porous structure. The photoluminescence spectrum of the hybrid materials shows the characteristic red emission of Eu3+ ion and green emission of Tb^(3+). Further luminescent investigations reveal that these hybrid materials can detect Fe^(3+) with relative selectivity and high sensitivity, which suggests that the hybrid materials could be a promising luminescent probe for selectively sensing Fe^(3+) ion. 关键词：混合材料多孔传感器混血儿光致发光光谱 FE^3+ 纤维素离子

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Hierarchical porous cellulose/lanthanide hybrid materials as luminescent sensor

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