Cyano-Rich g-C 3 N 4 in Photochemistry: Design, Applications, and Prospects.

Cyano-rich g-C 3 N 4 materials are widely used in various fields of photochemistry due to the very powerful electron-absorbing ability and electron storage function of cyano, as well as its advantages in improving light absorption, adjusting the energy band structure, increasing the polarization rate and electron density in the structure, active site concentration, and promoting oxygen activation ability. Notwithstanding, there is yet a huge knowledge break in the design, preparation, detection, application, and prospect of cyano-rich g-C 3 N 4 . Accordingly, an overall review is arranged to substantially comprehend the research progress and position of cyano-rich g-C 3 N 4 materials. An overall overview of the current research position in the synthesis, characterization (determination of their location and quantity), application, and reaction mechanism analysis of cyano-rich g-C 3 N 4 materials to provide a quantity of novel suggestions for cyano-modified carbon nitride materials' construction is provided. In view of the prevailing challenges and outlooks of cyano-rich g-C 3 N 4 materials, this paper will purify the growth direction of cyano-rich g-C 3 N 4 , to achieve a more in-depth exploration and broaden the applications of cyano-rich g-C 3 N 4 .