title: [Rheological phase synthesis and characterization of lanthanum salicylate and luminescence properties of Tb3+ -doped lanthanum salicylate].
abstract: Lanthanum salicylate and Tb3+ -doped lanthanum salicylate were synthesized with the rheological phase reaction method. Elemental analysis, IR, TG, DTA and powder X-ray diffraction were investigated to determine the composition, crystal structure and coordination manner between the COO- and ion La3+ of lanthanum salicylate. The emission and excitation spectra of Tb3+ -doped lanthanum salicylate were also discussed. Powder X-ray diffraction suggests that the compound has a layered monoclinic structure, and the lattice parameters are a = 21.6010 A, b = 13.8015 A , c = 3.8103 A, beta = 97.11 degrees, V = 1127.2 A3, Z = 2, rhocal = 1.621 g x cm(-3) and rhoexp = 1.653 g x cm(-3). The Tb3+ -doped lanthanum salicylate exhibits very strong green luminescence of Tb3+ under the excitation of UV light. And the transition from 5D4 to 7F5 is the strongest one.
authors.affiliation: Department of Chemistry, Insititute of Physical Chemistry, Zhejiang Normal University, Jinhua 321000, China.
authors.forename: Liang-chao
authors.initials: LC
authors.lastname: Li
authors.forename: Zi-cheng
authors.initials: ZC
authors.lastname: Li
authors.forename: Liang-jie
authors.initials: LJ
authors.lastname: Yuan
authors.forename: Ke-li
authors.initials: KL
authors.lastname: Zhang
authors.forename: Ju-tang
authors.initials: JT
authors.lastname: Sun
mesh_terms: D002245:Carbon Dioxide / Q000737:chemistry; D007811:Lanthanum / Q000737:chemistry*; D008027:Light; D049449:Luminescence; D008163:Luminescent Measurements; D036103:Nanotechnology; D010316:Particle Size; D010777:Photochemistry; D020156:Salicylic Acid / Q000138:chemical synthesis* / Q000737:chemistry; D013691:Tellurium; D013725:Terbium / Q000737:chemistry*; D015018:Ytterbium / Q000737:chemistry*; D015034:Zinc Oxide
chemical_list: D013725:Terbium; D002245:Carbon Dioxide; C041069:carboxyl radical; D007811:Lanthanum; D015018:Ytterbium; D013691:Tellurium; D020156:Salicylic Acid; D015034:Zinc Oxide