The SOLAR2CLEAN project, in partnership with ETH Zurich (Switzerland) aims at the achievement of a highly efficient engineered photocatalytic system, driven by solar light, of high applicability in real-life, targeting wastewater purification, i.e. the degradation of microplastics and other pollutants (antibiotic residues) generated by a high value Portuguese industry. It involves a dynamic research plan fostering innovation, technology integration and international collaborations.