College of Chemistry and Materials Science, Information College, Huaibei Normal University, Huaibei, Anhui 235000, China.
Photochem Photobiol Sci. 2019 Dec 1;18(12):2942-2951. doi: 10.1039/c9pp00166b. Epub 2019 Nov 20.
In this work, we report a novel strategy for fabricating a luminescent 2D nanocomposite at room temperature by in situ generation of luminescent copper nanoclusters (Cu NCs) embedded in natural monolithic eggshell membrane (ESM) using dithiothreitol as the reducing and capping agent. The established fabrication is facile, cost-effective and viable. The as-prepared Cu NC/ESM nanocomposite exhibited excellent photoluminescence performance, improved chemical, thermal and photo stability, convenient tailoring and flexibility. Significantly, the nanocomposites could be employed as test strips for the visual detection of Ag ions based on the luminescence quenching phenomenon and as color conversion layers in light-emitting diodes. Furthermore, application of the proposed strategy for surface luminescence patterning was well demonstrated, indicating great potential in biomass based anti-counterfeiting, information encryption and security paper or sheets.
在这项工作中，我们报告了一种在室温下通过原位生成嵌入天然整体蛋壳膜（ESM）中的发光铜纳米簇（Cu NCs）来制造发光 2D 纳米复合材料的新策略，使用二硫苏糖醇作为还原剂和封端剂。所建立的制备方法简单、经济可行。所制备的 Cu NC/ESM 纳米复合材料表现出优异的光致发光性能、提高的化学、热和光稳定性、方便的剪裁性和柔韧性。重要的是，纳米复合材料可以用作基于荧光猝灭现象的 Ag 离子的可视化检测的测试条，以及在发光二极管中的颜色转换层。此外，还很好地证明了所提出的策略在表面发光图案化方面的应用，表明其在基于生物质的防伪、信息加密和安全纸或薄片方面具有很大的潜力。
