A series of high performance Ag@Ag salts photocatalysts were designed and fabricated. The photocatalytic abilities of this kind of catalysts can be tuned by altering the negative charged ions (Cl(-), Br(-), I(-), CrO(4)(2-), PO(4)(3-), PW(12)O(40)(3-), and SiW(12)O(40)(4-)): higher stability and higher charged anions lead to the stronger photocatalytic ability.