In this report we discuss the combined application of scanning electron microscopy and quasielastic light scattering as well as UV/vis titrations employing [RU(bpy)(3)](2+) and especially designed bis-heteroleptic sensor ruthenium complexes [Ru(bpy)(2)(MS-R)]2+, [Ru(bpy)(2)(DS-R)](2+), [Ru(tap)2(MS-R)](2+), and [Ru(tap)(2)-(DS-R)](2+) (bpy = 2,2’-bipyridine, tap = tetraazaphenanthrene) possessing mono- and bis-styrene-attached tetraazaphenanthrene units as third ligands for the characterization of Ru, RuO2, IrO2, and MnO2 colloids, as they are commonly used in model systems for artificial photosynthesis. The elucidation of the binding mechanisms and orientation and the arising supramolecular photoelectron transfer properties of ruthenium sensitizers adsorbed on metal colloids can be regarded as tools for the generation of highly efficient systems for artificial photosynthesis. We describe in this paper a simple and application-oriented method for the evaluation ofthe catalyst’s effective surface in water solution and characteristic differences in the binding and interaction modes of [Ru(bpy)(3)](2+) to the four colloidal catalysts and the bis-heteroleptic sensor complexes listed above with the ruthenium colloid. In consequence, supramolecular systems for directed photoelectron transfer toward metal colloids in artificial model systems for photosynthesis can be designed in a simple and efficient manner.