Multifunctional nanocatalyst that is efficient in removal of organic and inorganic contaminant under different light illumination is highly anticipated. Here, we report a ternary nanocatalyst that has catalytic, photocatalytic and a good photocatalytic memory for oxidation/reduction processes. The ternary nanocatalyst was prepared by the facile immobilization of Ag NPs on the V2O5/g-C(3)N(4 )surface by photodeposition method. The morphology of the ternary nanostructure shows the uniform distribution of V2O5 on the g-C3N4 surface decorated with 20-30 nm average diameters of Ag NPs. The prepared catalyst exhibits unique catalytic, photocatalytic and postoxidation/reduction ability for removal of organic, p-nitrophenol (NP), methylene blue (MB) and inorganic (Cr+6) water pollutants. The catalytic reduction conversion of NP was completed in 60 min was ascribed to the electron relay mechanism, while the photocatalytic hydrogenation of NP was achieved in only 8 min and assigned to the solid Z-scheme electron-hole pair generation facilitated by the good electron storage of Ag NPs. On the other hand, the electron storage memory of the photocatalyst was responsible for the post- oxidation/reduction of MB/Cr+6 respectively. Oxidation of MB increased by 27%, while the Reduction of Cr+6 to Cr+3 was enhanced by 28% after sunlight post-illumination. The proposed ternary nanocatalyst provide an efficient tool for the removal of water pollutants from different sources during the daytime: in presence of sunlight or after the sunset.