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 ...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.展开更多
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）.
文摘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.
