▎ 摘　　要

Singlet oxygen (O-1(2)) has been widely produced utilizing nanostructure-based photocatalysts, purposed for photodynamic therapy (PDT), wastewater treatment, and photo-oxygenation reactions. A rational design of heterogeneous photocatalysts is important for a high O-1(2) quantum yield under visible-light or near-infrared irradiation. The present review provides insights for graphene-based photocatalyst design by summarizing the mechanism and fundamental aspects of O-1(2) sensitization, as well as offers a summary of experimental realization. Subsequently, we go through works done on light-driven O-1(2) sensitization utilizing graphitic carbon nitride, carbon dots, graphene quantum dots, and graphene oxide, as well as immobilized organic dyes on polymeric and silica supports, followed by their applications. Moreover, the effect of surface passivation, hybridization with other materials, doping with metal or nonmetal atoms, plasmonic fields, and self-assembly aggregation on the O-1(2) quantum yield and O-1(2) enhancement factor is discussed. We also provide perspectives for the O-1(2) sensitization including applying machine learning (ML) to optimize the plasmonic field and O-1(2) quantum yield.