氨基多糖/稀土金属复合光功能材料的制备及应用
Preparation and application of amino polysaccharide/rare earth metal composite photofunctional materials
[目的]在氨基多糖中羧甲基壳聚糖(CMCh)是一种既不含芳香结构也不含共轭结构的非传统发光材料,它可以通过丰富的官能团与稀土离子进行配位,作为一种生物质大分子配体将自身所吸收的能量传递给稀土离子从而使其发出强烈特征荧光。本文探究了以羧甲基壳聚糖作为配体与以铕、铽、铕/铽作为中心离子的配位情况及其发光性能研究,通过表征探究了生物质大分子作配体向镧系中心离子进行能量传递的机理,并拓展多方面的应用。[方法]以绿色的方式制备了CMCh-Eu3+荧光气凝胶…查看全部>>
[Objective]Among amino polysaccharides,carboxymethyl chitosan(CMCh)is a kind of non-traditional luminous material with neither aromatic nor conjugated structure.It can coordinate with rare earth ions through rich functional groups,and as a kind of biomass macromolecular ligand,it can transfer its absorbed energy to rare earth ions,which makes it emit strong characteristic fluorescence.In this paper,the coordination of CMCh as ligand and Eu3+,Tb3+ and Eu3+/Tb…查看全部>>
王佳琪;李远航;潘江波;王砥;韦双颖;王成毓;李坚;
羧甲基壳聚糖 镧系离子 酸性气体检测 金属离子检测 多色LED
Carboxymethyl chitosan Lanthanide ions Acid gas detection Metal ion detection Multicolor LED
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