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In recent years,silver nanoparticles have attracted considerable attention due to its unique optical localized surface plasmon resonances(LSPR)characteristics,which can be applied in sensing,medicine,catalysis and so on.Furthermore,the heterostructures of silver nanoparticles with different semiconductors have been synthesized to prevent the proton-induced electron-hole pairs of semiconductors from recombining and thus decreasing the photocatalytic activity.