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For effective photocatalytic pollutant degradation on bismuth tungstate (Bi2WO6), it is vital to enhance the photogenerated charge separation and the photochemical stability. Herein, we successfully fabricated yttrium (Y)-Bi2WO6/graphene (G) nanocomposites with a significantly enhanced visible light-driven photocatalytic ability to degrade Rhodamine B compared with the bare Bi2WO6. This is attributed to the remarkably improved visible light absorption capability and photogenerated charge separation after doping yttrium and subsequent cou