title: Eu-doped Mg-Al layered double hydroxide as a responsive fluorescent material and its interaction with glutamic acid.
abstract: The paper describes a study on the fluorescence of a Eu-doped Mg-Al layered double hydroxide (Eu-doped LDH) response to glutamic acid (Glu). Various characterizations (UV-Vis transmittance, TG-DTA and IR-spectrum) indicated that there is an interaction between the Eu-doped LDH and Glu. Fluorescent study was found that the red emissions resulted from (5)D(0)-(7)F(J) transition (J=1, 2) of Eu(3+) markedly decreased, while the blue emission at 440 nm contributed to Glu shifted to low energy after the addition of Glu to the Eu-doped LDH. The fluorescent changes may be relevant to the hydrogen-bond interaction between the Eu-doped LDH and Glu, and the mechanism of the interaction between Eu-doped LDH and Glu was discussed.
authors.affiliation: Department of Chemistry, Nanchang University, Nanchang 330031, China. yfchen@ncu.edu.cn
authors.forename: Yufeng
authors.initials: Y
authors.lastname: Chen
authors.forename: Fei
authors.initials: F
authors.lastname: Li
authors.forename: Gensheng
authors.initials: G
authors.lastname: Yu
authors.forename: Junchao
authors.initials: J
authors.lastname: Wei
mesh_terms: D000535:Aluminum / Q000737:chemistry*; D004055:Differential Thermal Analysis; D005063:Europium / Q000737:chemistry*; D018698:Glutamic Acid / Q000737:chemistry*; D006878:Hydroxides / Q000737:chemistry*; D008274:Magnesium / Q000737:chemistry*; D008970:Molecular Weight; D013050:Spectrometry, Fluorescence; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D013696:Temperature; D013818:Thermogravimetry; D014961:X-Ray Diffraction
chemical_list: D006878:Hydroxides; D018698:Glutamic Acid; D005063:Europium; C031356:hydroxide ion; D000535:Aluminum; D008274:Magnesium