利用天然酚类物质生成可持续余辉室温磷光发射材料。
Sustainable Afterglow Room-Temperature Phosphorescence Emission Materials Generated Using Natural Phenolics.
机构信息
Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin, 150040, P. R. China.
Department of Chemistry, Institute for Coatings and Surface Chemistry, Niederrhein University of Applied Sciences, Adlerstr. 1, 47798, Krefeld, Germany.
出版信息
Angew Chem Int Ed Engl. 2022 Aug 1;61(31):e202202760. doi: 10.1002/anie.202202760. Epub 2022 Apr 27.
Long-lived afterglow room-temperature phosphorescence (RTP) from natural phenolics has seldom been reported yet this is essential for the development of sustainable afterglow RTP materials. With this research, we have prepared sustainable afterglow RTP materials (GA@SA) with a lifetime of up to ≈934.7 ms by embedding gallic acid (GA) within a Ca -crosslinked sodium alginate (SA) matrix. Theoretical simulations indicate that the restricted carbonyl moieties of the GA and H-type aggregates of GA in a SA matrix promoted the spin orbit coupling (SOC) of GA and induced afterglow emission. Moreover, afterglow RTP emission could be produced by embedding different types of natural phenolics such as, tannic acid, caffeic acid and chlorogenic acid into Ca -crosslinked networks of SA. As an illustration of potential applications, GA@SA was used to prepare anti-counterfeit afterglow clothing and paper. This work provides an innovative method for the activation of long-lived afterglow RTP from sustainable phenolics.
天然酚类物质的长余辉室温磷光（RTP）现象很少被报道，但对于开发可持续长余辉 RTP 材料而言，这是至关重要的。在这项研究中，我们通过将没食子酸（GA）嵌入到钙交联的海藻酸钠（SA）基质中，制备了具有长达≈934.7ms 寿命的可持续长余辉 RTP 材料（GA@SA）。理论模拟表明，GA 的受限羰基基团和 GA 在 SA 基质中的 H 型聚集促进了 GA 的自旋轨道耦合（SOC），并诱导了余辉发射。此外，通过将不同类型的天然酚类物质，如鞣酸、咖啡酸和绿原酸，嵌入到 SA 的钙交联网络中，也可以产生长余辉 RTP 发射。作为潜在应用的说明，GA@SA 被用于制备防伪长余辉服装和纸张。这项工作为从可持续的酚类物质中激活长寿命的余辉 RTP 提供了一种创新的方法。
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