Patent ID: 7202362

Claim:
A method for in situ, stepwise, solid state synthesis of photosensitizers for titanium dioxide, comprising: providing an anchor ligand having an anchoring end and a chelating end, wherein the anchor ligand is 4,4′-dicarboxy-2,2′-biquinoline (“bqda”); binding the anchoring end of the anchor ligand onto the titanium dioxide to give a bound anchor ligand with the chelating end; incorporating a metal cation onto the chelating end of the bound anchor ligand to give a bound metal, wherein the metal cation is copper (“Cu”); and binding one or more secondary ligands onto the bound metal, wherein the one or more secondary ligands are 2,2′-biquinoline (“biq”), 2,9-dimethyl-1,10-phenanthroline (“mph”), 2,9-dimethyl-2,2′-bipyridine (“mbp”), 4,7-diphenyl-1,10-phenanthroline (“bap”), or 1,10-phenanthroline (“phen”).