文献类型：期刊文献

中文题名：Synthesis of new Tb-doped Zn-Al LDH/tryptophan hybrids and their fluorescent property

英文题名：Synthesis of new Tb-doped Zn-Al LDH/tryptophan hybrids and their fluorescent property

作者：Chen Yufeng[1];Wang Xiaoqing[1];Luo Shidi[2];Bao Yao[1]

机构：[1]Nanchang Univ, Coll Chem, Nanchang 330031, Peoples R China;[2]Guangdong Ocean Univ, Dept Appl Chem, Zhanjiang 524088, Peoples R China

年份：2016

卷号：34

期号：11

起止页码：1095

中文期刊名：Journal of Rare Earths

外文期刊名：JOURNAL OF RARE EARTHS

收录：SCI-EXPANDED(收录号：WOS:000386781200005)、CSTPCD、、EI(收录号：20164502986195)、CSCD2015_2016、Scopus(收录号：2-s2.0-84994104419)、WOS、CSCD

基金：Project supported by the National Natural Science Foundation of China (51162021)

语种：英文

中文关键词：Tb-doping; ; Zn-Al layered hydroxides; ; tryptophan; ; hybrid; ; fluorescence; ; rare earths; ;

外文关键词：Tb-doping; Zn-Al layered hydroxides; tryptophan; hybrid; fluorescence; rare earths

中文摘要：A series of hybrids based on Tb-doped Zn-Al layered double hydroxides （Tb-LDHs） combined with tryptophan （hereafter shortened as Try） were synthesized by soft-chemical method. The composition, structure, and fluorescence of the Tb-LDH/Try hy-brids were analyzed by various characterizations. Compositional analysis indicated that the content of tryptophan present in the hybrids gradually increased while the Tb-LDH reacted with 0.05, 0.1, and 0.25 mol/L Try solution, respectively. XRD results revealed that new reflections appeared in the Tb-LDH/Try hybrids. TGA curves of the Tb-LDH/Try hybrids were different from that of Tb-LDH and Try. IR spectra manifested that the IR spectra of the hybrids were characteristic of the Try and Tb-LDH. Fluorescent spectra sug-gested that the green emission due to5D4→7F5 transition of Tb3＋ greatly decreased but not quenched, and the emission attributed to Try obviously increased. Meanwhile the fluorescent spectra of Tb-LDH/Try hybrids presented broad continuous bands in visible region.

外文摘要：A series of hybrids based on Tb-doped Zn-Al layered double hydroxides (Tb-LDHs) combined with tryptophan (hereafter shortened as Try) were synthesized by soft-chemical method. The composition, structure, and fluorescence of the Tb-LDH/Try hybrids were analyzed by various characterizations. Compositional analysis indicated that the content of tryptophan present in the hybrids gradually increased while the Tb-LDH reacted with 0.05, 0.1, and 0.25 mol/L Try solution, respectively. XRD results revealed that new reflections appeared in the Tb-LDH/Try hybrids. TGA curves of the Tb-LDH/Try hybrids were different from that of Tb-LDH and Try. IR spectra manifested that the IR spectra of the hybrids were characteristic of the Try and Tb-LDH. Fluorescent spectra suggested that the green emission due to D-5(4)-> F-7(5) transition of Tb3+ greatly decreased but not quenched, and the emission attributed to Try obviously increased. Meanwhile the fluorescent spectra of Tb-LDH/Try hybrids presented broad continuous bands in visible region.