Hydrogen peroxide (H₂O₂) is a chemical that gained wide importance in the industry and science fields. Its production is mostly performed through the anthraquinone reaction, which requires a high energy consumption and waste generation. The growing demand of H₂O_2, the development of clean and economically viable processes points towards heterogeneous photocatalysis as a promising alternative since it applies an optical semiconductor, water, oxygen, and ideally solar light irradiation. Moreover, employing a metal-free carbon nanomaterial minimises possible toxicity consequences and reinforces the sustainability of the overall process. Graphitic carbon nitride (GCN) can be chemically and physically altered, along with the assessment of different sacrificial agents and light sources. In this poster presentation, we aim to show typical modifications on GCN materials design to enhance the productivity of H₂O₂ synthesis and its possible direct application H₂O₂.