**4. Applications of photoactive graphene**

Covalent or noncovalent functionalization of graphene with various photoactive compo‐ nents has been considered to be crucial for graphene processing.[44, 45] The photoactive graphene *via* chemical approach holds promise for optimizing dispersibility in common solvents, tailoring surface chemical reactivity, and tuning the electronic properties of graphene.[43] Therefore, chemical functionalization strategy produced photoactive gra‐ phene has many advantages over pristine graphene and bare photoactive molecules, especially in the field of photo-energy conversion devices and as synergistic catalyst for organic synthesis reactions.[93, 94]
