摘要
Lignin-based graphene quantum dots(L-GQDs)serve as a bridge between renewable biomass resources and functional carbon materials.This review begins with the molecular structure of lignin,exploring various synthesis methods for L-GQDs.The precise elucidation of precursor-structure–property relationships could optimize their performance through the quantitative regulation of lignin unit properties and enable controllable synthesis.We elaborate on the photoluminescence mechanisms and fluorescence modulation strategies of L-GQDs,covering aspects such as structural design,synthesis pathways,and photophysical property optimization.Additionally,the review discusses the application prospects of L-GQDs in biology,energy conversion,and optoelectronics,and highlights the importance of synergistically aligning synthesis strategies with practical on-demand applications.We also propose that research paradigm should focus on in-situ unveiling of nucleation kinetics during L-GQDs formation,photoluminescence mechanism decoding,toxicity regulation to enable green,sustainable and multidisciplinary cutting-edge applications.
基金
support from National Natural Science Foundation of China(Nos.22208376,UA22A20429)
Qingdao New Energy Shandong Laboratory Open Project(QNESL OP 202303)
Shandong Provincial Natural Science Foundation(Nos.ZR2024QB175,ZR2023LFG005)
Fundamental Research Funds for the Central Universities(No.25CX07002A).
