Ion-Mediated Self-Assembly of Graphene Oxide and Functionalized Perylene Diimides into Hybrid Materials with Photocatalytic Properties

A novel ion-mediated self-assembly method was applied for integration of graphene oxide (GO), propanoic- and glutaric-substituted perylenes (glu-PDI PA-PDI), Zn (OAc)2 into new hybrid materials with photocatalytic properties. The structuring chromophores through coordination bonding on the GO surface is controlled by chemistry PDI linkers. Four-substituted glu-PDI forms consolidated microporous particles, whereas di-substituted PA-PDI binds a macroporous gel-like structure. GO/PDI controls without Zn2+ ions form only non-integrated dispersions. Both hybrids can initiate photodestruction 1,5-dihydroxynaphtalene (DHN) due to effective charge separation between components generating hydroxyl radicals determined luminescent probing terephthalic acid. reduction mechanism photodegradation confirmed MALDI-TOF spectroscopy. structure rate process. glu-PDI-based photocatalyst shows smaller photoreduction 3.3 × 10−2 min−1 than that PA-PDA (4 min−1) diffusion limitations. Our results suggest synthesis useful rational alternative conventional GO-based functional aromatic stacking organic produce affordable efficient photocatalysts.