期刊
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
卷 337, 期 -, 页码 112-117出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jphotochem.2017.01.023
关键词
Clay; Energy transfer; High emission quantum yield; Cationic Pyrene; Ru(bpy)3(2+)
资金
- Nippon Sheet Glass Foundation for Materials Science and Engineering
- JSPS KAKENHI [50362281]
- Uchida Energy Foundation, Japan
- Grants-in-Aid for Scientific Research [16K04885, 26620166, 24107003] Funding Source: KAKEN
A novel type of trimethylanilinium-substituted pyrene derivative, 1,6-di(N,N,N-trimethylanilinium-4-y1) pyrene 2I(-)(An-Py2+), was synthesized. An-Py2+ exhibits strong emission with a high-emission quantum yield (approximately 90%) in aqueous solution. An-Py2+ was hybridized on a clay (Sumecton SA (SSA)) surface, and the photochemical behavior of An-Py2+ on the SSA surface was investigated using absorption and emission spectroscopic analyses, emission quantum yield (Phi(f)), and lifetime (tau) measurements. Effective adsorption of An-Py2+ on SSA was observed, and adsorption limit was estimated to be 100% relative to the cation-exchange capacity (CEC) of SSA. The previously reported pyridinium-substituted pyrene derivatives cause a gradual redshift of both absorption and emission on the SSA surface. In contrast, An-Py2+ effectively suppresses such a redshift on SSA due to anilinium substitution of the pyrene unit. (C) 2017 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据