作者:Galian Gou、Ren Ren、Shuwen Li、Shujing Guo、Zhengping Dong、Miao xie、Jiantai Ma
DOI:10.1039/c3nj00826f
日期:——
A graphene–inorganic hybrid material has been fabricated by coupling Eu(III) complexes onto graphene oxide (GO) (denoted as Eu-GO hereafter). Successful coupling has been verified by 1H NMR, CHN elemental analysis, inductively coupled plasma-atomic emission spectroscopy (ICP) for Eu3+ content, and Fourier transform infrared (FTIR) spectroscopy. UV-vis measurements of a dilute dispersion of Eu-GO in ethanol reveal the characteristic absorption of Eu(III) complexes, which gives further proof of the successful coupling. The composites display strong luminescence, more durable emission decay, enhanced photoluminescent stability, and improved thermal stability in comparison with the isolated complexes, due to interactions of the complexes with the GO.
通过将Eu(III)络合物耦合到氧化石墨烯(GO)上(以下表示为Eu-GO)制备了石墨烯-无机杂化材料。成功的耦合已通过 1H NMR、CHN 元素分析、Eu3+ 含量电感耦合等离子体原子发射光谱 (ICP) 和傅里叶变换红外 (FTIR) 光谱得到验证。对 Eu-GO 在乙醇中的稀释分散体的紫外-可见测量揭示了 Eu(III) 配合物的特征吸收,这进一步证明了偶联的成功。由于配合物与GO的相互作用,与孤立的配合物相比,该复合材料表现出强发光、更持久的发射衰减、增强的光致发光稳定性和改善的热稳定性。