Aqueous synthesis of stable and luminescent flexible non-covalently assembled europium(III) complexes-organoclay films

作者：Wang, Tianren; Liu, Meiqi; Ji, Quan; Wang, Yige^*

来源：RSC Advances, 2015, 5(125): 103433-103438.

DOI：10.1039/c5ra21828d

• METAL-ORGANIC FRAMEWORK
• WHITE-LIGHT EMISSION
• ZEOLITE L CRYSTALS
• HYBRID MATERIALS
• IONIC LIQUID
• LANTHANIDE COMPLEXES
• SOLAR CONCENTRATORS
• BUILDING-BLOCKS
• NANOZEOLITE L
• SOFT-HYBRIDS

In this paper, we report a novel lanthanide luminescent hybrid material that prepared by simple supramolecular co-assembly of aminoclay (AC), Eu(TTA)(3)center dot 2H(2)O and deprotonated 40-para-phenylcarboxyl-2,2':6',2 ''-terpyridine (Na-Carb-Terpy) in aqueous system at room temperature. Bright red luminescence dominated by D-5(0) -> F-7(2) transition (lambda(em) = 614 nm) of Eu3+ can be observed under appropriate UV light illumination. The hybrid material exhibits optimal luminescent properties coupled with good water dispersibility when the initial addition amount of AC and Terpy moieties is 4 : 1 in molar ratio. A consequence is that flexible, transparent and strong red-light-emitting thin film based on water-soluble polymer poly(vinyl alcohol) (PVA) has been successfully prepared, showing better luminescent properties than the hybrid material, as well as improved photo-and thermo-stability compared with pure Eu(TTA)(3)center dot 2H(2)O.

• 出版日期2015
• 单位河北工业大学