GO改性铕(Ⅲ)-二苯甲酰甲烷-三苯基氧膦及其发光性能研究  

Synthesis,characterization and luminescent performance of Eu-DBM-TPPO-GOs

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 Kailong;Ni Maomao;Chen Jiayi;Tang Shuli;Pang Yujun;Song Yaping;Tan Zhiwen(College of Biological and Environmental Sciences,Zhejiang Wanli University,Ningbo 315100)

机构地区：[1]浙江万里学院生物与环境学院,宁波315100

出　　处：《化工新型材料》2020年第3期96-100,共5页New Chemical Materials

基　　金：浙江省分析测试科技计划项目(2018C37046);宁波市公益类科技计划项目(2019C10005);浙江省大学生科技创新(新苗人才计划)项目(2019R420013);国家大学生创新创业训练计划项目(201910876023);浙江省“生物工程”一流学科项目(CX2019030);浙江万里学院2018年课堂教学改革项目(kg2018014)。

摘　　要：采用超声辅助溶剂热法合成一种氧化石墨烯(GO)改性铕(Ⅲ)-二苯甲酰甲烷-三苯基氧膦(Eu-DBMTPPO-GOs)近紫外转换红光材料,通过元素分析、紫外光谱、红外光谱、热重、X射线粉末衍射、扫描电镜和荧光对结构和性能进行表征。结果表明:配体与铕原子有效配位,适量GO添加改性能提高材料发光性能和品质。添加质量为0.009%时,分解温度达到230℃以上,在300~500nm呈现强激发带,在611nm发射强特征红光,量子产率23.5%,荧光寿命0.212ms,色坐标(0.655,0.340),并结合结构和性能对GO改性机理进行了分析。A new type of graphene oxide modified photoluminescent complex of europium-dibenzoylmethanetriphenylphosphine oxide(Eu-DBM-TPPO-GOs)was synthesized by ultrasonic assisted solvothermal method.The properties and luminescence performance were characterized by elemental analysis,UV,FT-IR,TG,XRD,SEM and FL.The results exhibited that ligands were coordinated effectively with central europium atom,luminescence performance and quality was improved with appropriate added amount of graphene oxide.Eu-DBM-TPPO-GOs suggested favorable thermal stability with decomposition temperature above 230℃,exhibited strong excitation band at 300~500 nm and strong characteristic red light emission at 611 nm,and the quantum yield was 23.5%,fluorescence lifetime was 0.212 ms,chromaticity coordinates was(0.655,0.340),respectively,when added 0.009% wt.Furthermore,the modification mechanism of graphene oxide was explored based on its structure and performance.

关 键 词：铕 二苯甲酰甲烷 三苯基氧膦 氧化石墨烯 光转换发光 

分 类 号：O641.4[理学—物理化学] O657.3[理学—化学]