Septi FI, Nugroho WS, Purnami, Santjojo DJDH, Wardana ING. The role of aromatic rings, heterocyclic rings, and hydroxyl groups in increasing hydrogen production using activated carbon-based photocatalysts. Mech. Eng. for Soc. and Ind. 2026;6(1):21-39. doi:10.31603/mesi.15190