We have described the preparation, spectroscopic and photocatalytic properties of a new polymeric covalent triazine framework containing a dangling pyridyl group labeled as CTF. The electronic properties of the CTF are similar to the unsubstituted one and also similar (a slightly lower CB energy) to the covalent triazine framework linked by 3 phenyls groups with no dangling pyridyl. The dangling pyridyl in CTF has been used as an axial ligand to coordinate the Ru-tda complex, which is one of the best molecular water oxidation catalysts (WOCs) available today in terms of both robustness and TOFs, and is labelled as Ru-CTF. Upon light excitation and in the presence of persulfate as a sacrificial electron acceptor the Ru-CTF hybrid material is capable of catalyzing the oxidation of water to dioxygen giving a max TOFs of 17 h -1 and TONs of 220 (cumulative of 3 repetitive runs) as indicated in Table (entry 2). As it can be observed in the Table, the Ru-CTF performance is outperforming the best CTF functional materials reported so far. Further, it is also interesting to note here that persulfate is used as a SEA, in sharp contrast with most of the CTF systems reported up to now where the SEA is AgNO3, that is known to possess rich luminescent properties and thus can potentially increase the complexity of the system also by generating Ag nanoparticles as the irradiation proceeds (See Table , entries 3-6 and 8-12). The TOF of the best system reported up to now, CTF-0 (Table , entry 6) is about 4 times smaller than that of Ru-CTF and again needs Ag to proceed. This points out the benefit of the molecular design using the dangling pyridyl to spatially control the anchoring of the WOC within the CTF absorber polymer as opposed to typical drop casting strategies where the catalyst is in contact with the whole polymeric structure that can produce undesired non-productive reactions. In addition, the ethyl linker from the axial pyridyl group of the Ru catalyst and the CTF absorber controls the distance between absorber and catalyst as well as their potential electronic coupling that dictates the kinetics of electron transfer between the catalyst and the absorber.