The Types segment differentiates carbon nitride products by their structural and compositional attributes, principally graphitic carbon nitride (g‑C₃N₄), polymeric carbon nitride, nanostructured carbon nitride, and composite carbon nitride. Graphitic carbon nitride, characterized by a layered, crystalline framework, captures the largest portion of the market—approximately 45 %—because of its reproducible synthesis routes and established performance in photocatalysis. Polymeric carbon nitride, with a more amorphous network, holds about 20 % of sales, favored in applications requiring flexible film formation such as coatings. Nanostructured variants—nanotubes, nanosheets, and quantum dots—account for roughly 25 % of the market, driven by their enhanced surface‑to‑volume ratios that improve catalytic and electrochemical activity. Composite carbon nitride, which integrates metal oxides, graphene, or polymers, contributes the remaining 10 %, reflecting its emerging role in hybrid devices where synergistic properties are essential. Together, these type classifications provide a clear market taxonomy that aligns product development with end‑use demand.