In situ fabrication of a luminescent copper nanocluster/eggshell membrane composite and its application in visual detection of Ag+ ions, light-emitting diodes and surface patterning.,Photochemical & Photobiological Sciences

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In situ fabrication of a luminescent copper nanocluster/eggshell membrane composite and its application in visual detection of Ag+ ions, light-emitting diodes and surface patterning.
Photochemical & Photobiological Sciences ( IF 2.7 ) Pub Date : 2019-10-29 , DOI: 10.1039/c9pp00166b
Chunbo Li ₁ , Congying Shao ₁ , Lu Li ₁ , Xianhu Liu ₁ , Mingzhu Liu ₁

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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.

中文翻译：

发光铜纳米簇/卵壳膜复合材料的原位制造及其在Ag +离子，发光二极管和表面图案的视觉检测中的应用。

在这项工作中，我们报告了一种通过在原位生成嵌入二氧化硫苏糖醇作为还原剂和加帽剂的天然整体蛋壳膜（ESM）中嵌入的发光铜纳米簇（Cu NCs），在室温下制备发光2D纳米复合材料的新策略。既定的制造是容易的，成本有效的和可行的。制备的Cu NC / ESM纳米复合材料具有出色的光致发光性能，改善的化学，热和光稳定性，方便的剪裁和柔韧性。值得注意的是，纳米复合材料可用作检测Ag ^+的试纸。离子基于发光猝灭现象，并作为发光二极管中的颜色转换层。此外，已经很好地证明了所提出的表面发光图案化策略的应用，表明在基于生物质的防伪，信息加密和防伪纸或防伪纸中具有巨大的潜力。

更新日期：2019-10-29

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