Li Man, Wang Yige, Chen Yuhuan, Zhang Shuming
School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, P. R. China.
Photochem Photobiol Sci. 2014 Jul;13(7):1025-30. doi: 10.1039/c4pp00076e. Epub 2014 Apr 25.
In this work, we report the preparation and luminescent properties of a novel luminescent ionogel consisting of a carboxyl-functionalized ionic liquid, Eu(3+) ions and gelatin. The obtained ionogel was investigated by FT-IR, SEM and photoluminescence spectroscopy. FT-IR spectra show that both the ionic liquid and the gelatin are coordinated to Eu(3+) ions through oxygen atoms. Luminescence data confirm that Eu(3+) ions are well-protected by the ionic liquid and gelatin from deleterious quenching interactions with water molecules.
在本工作中，我们报道了一种由羧基功能化离子液体、Eu(3+)离子和明胶组成的新型发光离子凝胶的制备及其发光性质。通过傅里叶变换红外光谱（FT-IR）、扫描电子显微镜（SEM）和光致发光光谱对所制备的离子凝胶进行了研究。FT-IR光谱表明，离子液体和明胶均通过氧原子与Eu(3+)离子配位。发光数据证实，Eu(3+)离子受到离子液体和明胶的良好保护，免受与水分子有害的猝灭相互作用。
