LIGHT2H2O addresses current energy and climate challenges by integrating sustainable hydrogen (H2) production with wastewater treatment within a single light-driven process. The project aspires to develop a light-induced oscillatory flow reactor operating under visible irradiation, combining advanced photocatalytic materials with continuous-flow reactor design. Emphasis is placed on long-term operational stability, reduced dependence on critical raw materials, and improved environmental sustainability. By advancing visible-light-responsive catalysts and continuous processing strategies, LIGHT2H2O contributes to scalable and resource-efficient solutions at the water-energy nexus.
To attain its goals, a set of partial objectives has been defined:
1. Develop durable visible-light-responsive g-C₃N₄-based photocatalysts using earth-abundant materials with enhanced charge-transfer properties.
2. Apply machine learning to accelerate photocatalyst optimisation and improve efficiency and selectivity for safe hydrogen production.
3. Immobilise high-performance photocatalysts on 3D-printed supports to enable stable and continuous reactor operation.
4. Valorise urban wastewater for simultaneous hydrogen production.
5. Develop an oscillatory-flow photoreactor with optimised light and mass transport to maximise photon utilisation efficiency.
6. Evaluate environmental, economic, and societal impacts to benchmark performance and support sustainable implementation.
7. Dissemination, networking and management.