Synthesis and characterization of nano-scale Terbium (III)-trimesic acid (TMA)-1,10-phenanthroline(phen) luminescent complex

• Published in: Journal of alloys and compounds 2009-05, Vol.477 (1), p.333-336
• Main Authors: Zheng, Chun, Ren, Huijuan, Cui, Zhenfeng, Chen, Fenghua, Hong, Guangyan
• Format: Article
• Language: English
• Subjects: Condensed matter: electronic structure, electrical, magnetic, and optical properties; Exact sciences and technology; Luminescence; Nanostructured materials; Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation; Photoluminescence; Physics; Rare earth alloys and compounds
• ISSN: 0925-8388; 1873-4669
• DOI: 10.1016/j.jallcom.2008.09.201

The nano-scale luminescent complex of Terbium(III)-trimesic acid (TMA)-1,10-phenanthroline(phen) was successfully synthesized by co-precipitation method in this paper. The chemical formula of the synthesized complex was speculated to be Tb(TMA)(phen) 0.0125·5H 2O by elemental analysis, inductively coupled plasma-atomic emission spectroscopy (ICP-AES), and Fourier-transform infrared spectroscopy (FTIR). XRD pattern of Tb(TMA)(phen) 0.0125·5H 2O indicated that it was a new crystalline complex since the diffraction angle, diffraction intensity and the distance of crystal plane were all different from those of the two ligands. TG curve proved that the synthesized nano-scale luminescent complex was stable in the range from ambient temperature to 464 °C in air. TEM images showed that the complex was spherical shape with an average size of 40 nm. The synthesized complex emitted the characteristic green fluorescence of Tb(III) ion under ultraviolet excitation by the photoluminescence analyses.