HEDP-capped Terbium Orthophosphate Nanoparticles as Sensitive Luminescent Probes for the Detection of Pb2＋ Ions  

作　　者：WANG Xi HAN Bin GAO Yan WANG Li BAI Ming 

机构地区：[1]Marine College, Shandong University, Weihai, Weihai 264209, P. R. China [2]School of Mechanical Electrical & Information Engineering, Shandong University, Weihai, Weihai 264209, P R. China

出　　处：《Chemical Research in Chinese Universities》2016年第3期325-328,共4页高等学校化学研究（英文版）

基　　金：Supported by the Natural Science Foundation of Shandong Province, China（Nos.ZR2015PB003, ZR2014BM016） and the China Postdoctoral Science Foundation（N o.2015 M572012）.

摘　　要：Terbium orthophosphate nanoparticles were synthesized using 1-hydroxy ethylidene-l,l-diphosphonic acid（HEDP） as a capping ligand under hydrothermal conditions at 80 ℃. These HEDP-capped TbPO4 nanoparticles owned a hexagonal phase structure according to the powder X-ray diffraction（XRD） results and were spherical monodispersed particles with a diameter of about 10 nm confirmed by transimission electron microscope（TEM） images. Interestingly, the luminescent intensities of the HEDP-capped TbPO4 nanoparticles decreased obviously in the presence of Pb2＋ ions and such a quenching behavior of luminescence was well fitted by the Stern-Volmer equation.Terbium orthophosphate nanoparticles were synthesized using 1-hydroxy ethylidene-l,l-diphosphonic acid（HEDP） as a capping ligand under hydrothermal conditions at 80 ℃. These HEDP-capped TbPO4 nanoparticles owned a hexagonal phase structure according to the powder X-ray diffraction（XRD） results and were spherical monodispersed particles with a diameter of about 10 nm confirmed by transimission electron microscope（TEM） images. Interestingly, the luminescent intensities of the HEDP-capped TbPO4 nanoparticles decreased obviously in the presence of Pb2＋ ions and such a quenching behavior of luminescence was well fitted by the Stern-Volmer equation.

关 键 词：Lanthanide nanoparticle Hydrothermal synthesis Detection of Pb2＋ Luminescent probe 

分 类 号：O614.33[理学—无机化学] TQ265.1[理学—化学]