The inorganic–organic hybrid nanoparticles Gd43+[AlPCS4]34− and La43+[TPPS4]34− ([AlPCS4]4−: aluminium(III) chlorido phthalocyanine tetrasulfonate; [TPPS4]4−: tetraphenylporphine sulfonate) are shown for the first time. Both were obtained via aqueous synthesis and contain extremely high contents of [AlPCS4]34− (81 wt%) and [TPPS4]34− (83 wt%). They show efficient singlet oxygen (1O2) production upon daylight and red-light irradiation. Photocatalysis is evidenced via dye degradation as a proof-of-the-concept and proceeds with daylight and even red-light illumination.
