氧化石墨烯杂化Eu(DBM)3Phen配合物合成及发光性能  

Synthesis and luminescent performance of a hybrid Eu(DBM)3 Phen complex of graphene oxide

作　　者：张凯龙[1] 倪貌貌 陈佳祎 汤淑利 庞钰君 宋亚萍 谭志文[1] ZHANG Kai-long;NI Mao-mao;CHEN Jia-yi;TANG Shu-li;PANG Yu-jun;SONG Ya-ping;TAN Zhi-wen(College of Biological and Environmental Sciences,Zhejiang Wanli University,Ningbo 315100,China)

机构地区：[1]浙江万里学院生物与环境学院,浙江宁波315100

出　　处：《化学研究与应用》2020年第3期400-406,共7页Chemical Research and Application

基　　金：浙江省分析测试科技计划项目(2018C37046)资助;宁波市公益类科技计划项目(2019C10005)资助;浙江省"生物工程"一流学科项目(CX2019030)资助;浙江省大学生科技创新(新苗人才计划)项目(2019R420013)资助;国家大学生创新创业训练计划项目(201910876023)资助;浙江万里学院2018年课堂教学改革项目资助。

摘　　要：基于超声辅助溶剂热法合成了一种氧化石墨烯杂化铕(Ⅲ)-二苯甲酰甲烷-邻菲罗啉(Eu-DBM-Phen-GOs)光转换发光材料,采用元素分析、热重、红外光谱、X射线粉末衍射、扫描电镜、荧光光谱对结构和性能进行表征。结果确认GOs有效杂化,GOs通过参与配位成键和提供配合物沉积基底方式影响发光性能,适量掺杂有助于改善发光性能。掺杂量为0.015%wt时,分解温度达到250℃以上,具有良好的热稳定性,荧光激发和发射强度显著增强,量子产率23.6%,荧光寿命0.266ms,色坐标(0.6432,0.3388),红光性能品质得到一定提高。A new type of hybrid photoluminescent material of graphene oxide and europium-dibenzoylmethane-1,10-phenanthroline complex was synthesized by ultrasonic assisted solvothermal method,denoted as Eu-DBM-Phen-GOs,and the properties and luminescence performance were characterized by elemental analysis,TG,FT-IR,XRD,SEM and FLS.The results indicated that GOs were hybridized effectively,which acted on luminescence by coordinating with europium ion and providing deposition substrate for Eu-DBM-Phen complex,GOs could improve luminescent performance under appropriate doping amount.Eu-DBM-Phen-GOs exhibited favorable thermal stability with decomposition temperature above 250°C,its intensity of excitation and emission strengthened significantly,and the quantum yield was 23.6%,fluorescence lifetime was 0.266ms,chromaticity coordinates was(0.6432,0.3388),respectively,red light performance and quality was enhanced to a certain extent when doping 0.015%wt.

关 键 词：铕 二苯甲酰甲烷 邻菲罗啉 氧化石墨烯 光转换发光 

分 类 号：O641.4[理学—物理化学]