发光的异核稀土配合物装饰氧化石墨烯片 |
Decoration of Graphene Oxide Sheets with Luminescent Heteronuclear Rare-Earth Complexes |
作者 | 单位 | E-mail | 李运涛 | 陕西科技大学, 陕西省轻化工助剂重点实验室, 西安 710021 | | 邱硕 | 陕西科技大学, 陕西省轻化工助剂重点实验室, 西安 710021 | roseofsnow@163.com | 杜滕 | 陕西科技大学, 陕西省轻化工助剂重点实验室, 西安 710021 | | 魏巍 | 陕西科技大学, 陕西省轻化工助剂重点实验室, 西安 710021 | | 韩振斌 | 陕西科技大学, 陕西省轻化工助剂重点实验室, 西安 710021 | | 阮方毅 | 陕西科技大学, 陕西省轻化工助剂重点实验室, 西安 710021 | | 曹丽慧 | 陕西科技大学, 陕西省轻化工助剂重点实验室, 西安 710021 | |
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摘要: 采用非共价键的方法制备一种新型的高荧光性能氧化石墨烯-异核稀土杂化材料。利用苯甲酸(BA)和菲咯啉(Phen)与Sm3+和Gd3+配位,并作用在氧化石墨烯片(GOSs)表面,制备了一种异核稀土配合物。所制备的产物通过傅里叶变换红外光谱、X射线衍射、扫描电子显微镜、荧光光谱仪、荧光寿命和热重分析来表征。该杂化材料具有强发光强度、长的寿命和良好的热稳定性。此外,Gd3+对材料具有很强的敏化作用,同时Gd3+在提高发光强度方面起着重要作用。氧化石墨烯的存在不会淬灭杂化材料的荧光性能。此外,还研究了具有不同物质的量之比的Sm3+和Gd3+的荧光特性。 |
关键词: 氧化石墨烯 钐 稀土 发光 |
基金项目: 国家自然科学基金青年项目(No.21701106)资助。 |
Abstract: A novel high luminescent performance of graphene oxide-rare earth hybrid material was prepared using a noncovalent approach. Herein, a heteronuclear rare earth complex were revealed in which the benzoic acid (BA) and 1,10-phenanthroline hydrate (Phen) coordinated with Sm3+ and Gd3+, which was used to functionalize graphene oxide sheets (GOSs). The as-prepared products were characterized via Fourier-transform infrared spectroscopy, X-ray diffraction, scanning electron microscope, fluorescence spectrometer, decay lifetime and thermogravimetric analysis. The hybrid materials exhibited strong luminescence intensity, long lifetime and good thermal stability. Besides, Gd3+ ions had a strong sensitizing effect on materials and played a significant role in improving the luminescence intensity. The presence of GOSs did not quench the fluorescence performance of hybrid materials. Moreover, their fluorescence properties of Sm3+ and Gd3+ with different molar ratios were also studied. |
Keywords: graphene oxide samarium rare earths luminescence |
投稿时间:2018-09-26 修订日期:2018-11-13 |
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李运涛,邱硕,杜滕,魏巍,韩振斌,阮方毅,曹丽慧.发光的异核稀土配合物装饰氧化石墨烯片[J].无机化学学报,2019,35(1):174-182. |
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