Photocatalytic degradation of organic pollutants (dyes, drugs, pesticides…) is of high interest. In this study, a unique supramolecular architecture of perylene diimide functionalized graphitic carbon nitride (PCN) was prepared and used as a support for UiO-66 nanoparticles. The organic-inorganic heterojunction (PCN@UiO-66) was employed for the photodegradation of rhodamine B (RhB). (338 characters)