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By using a supramolecular self-assembly method, a functional water splitting device based on a photoactive anode TiO 2 ( 1 + 2 ) has been successfully assembled with a molecular photosensitizer 1 and a molecular catalyst 2 connected by coordination of 1 and 2 with Zr 4+ ions on the surface of nanostructured TiO 2 . On the basis of this photoanode in a three-electrode photoelectrochemical cell, a maximal incident photon to current conversion efficiency of 4.1% at ∼450 nm and a photocurrent density of ∼0.48 mA cm –2 were successfully obtained
Ding et al. (Fri,) studied this question.