Sustainable organic afterglow room-temperature phosphorescence (RTP) is a particularly attractive phenomenon but remains difficult to achieve. Herein, inspired by the afterglow RTP of natural basswood, we prepare a series of sustainable afterglow RTP materials by confining lignin within a 3D poly(acrylic acid) network that mimics the wood matrix. The RTP emission of these materials could be finely tuned either by varying the drying temperature or the crosslinking density. Afterglow RTP emission could also be produced by embedding different types of lignin in a variety of 3D polymeric networks, thus demonstrating the generality of our strategy for preparing sustainable lignin-based RTP materials. As an illustration of potential applications, the lignin-based RTP materials are used to coat cotton fibers, which are then incorporated into luminescent textiles.

可持续的有机余辉室温磷光 (RTP) 是一种特别有吸引力的现象，但仍然难以实现。在此，受天然椴木余辉 RTP 的启发，我们通过将木质素限制在模拟木材基质的 3D 聚（丙烯酸）网络中，制备了一系列可持续的余辉 RTP 材料。这些材料的 RTP 发射可以通过改变干燥温度或交联密度来微调。余辉 RTP 发射也可以通过将不同类型的木质素嵌入各种 3D 聚合物网络中来产生，从而证明了我们制备可持续木质素基 RTP 材料的策略的通用性。作为潜在应用的说明，基于木质素的 RTP 材料用于涂覆棉纤维，