Tailored Graphitic Carbon Nitride Nanostructures: Synthesis, Modification, and Sensing Applications

Abstract Various beneficial properties of graphitic carbon nitride (g ‐ CN) have been discovered during the promotion of its visible‐light‐driven photocatalytic activity for water splitting. These properties enable g‐CN working as a sensing signal transducer with multiple output modes. In this review, state‐of‐the‐art sensing applications of tailored g‐CN nanostructures in the recent years are presented. Initially, g‐CN nanoarchitectures featuring large surface areas, abundance of active sites, and high dispersity in water are presented along with their preparation methods. Then, sensing applications of these g‐CN nanoarchitectures are described in sequence of the immobilization of recognition elements; semiconductor and electron donating properties derive signaling transduction modes, and efficient approaches for improving sensing performances. The review is concluded with a summary and some perspectives on the challenges and future possibilities of this research field.