Visible light-catalyzed translucent concrete, and preparation method and use thereof

A preparation method of a visible light-catalyzed translucent concrete, comprising the following steps:

• mixing and grinding a copper slag and an alkaline activator to obtain a mixture, and heating the mixture to conduct thermal activation to obtain an activated slag;
• subjecting the activated slag to magnetic separation to obtain an iron oxide and a copper slag tailing;
• impregnating the iron oxide and titanium dioxide in a polar solvent to obtain an impregnation dispersion, removing the solvent from the impregnation dispersion, and conducting roasting to obtain a TiO2-doped photocatalyst;
• mixing the TiO2-doped photocatalyst, an adhesive, a silane coupling agent, a dispersant, a thickener, and water to obtain a photocatalytic slurry;
• mixing the copper slag tailing, cement, a water reducer, and water to obtain a concrete slurry;
• and
• pouring the photocatalytic slurry, the concrete slurry, and the photocatalytic slurry in sequence into a mold pre-laid with an optical fiber, to form a first photocatalytic slurry layer, a concrete slurry layer, and a second photocatalytic slurry layer that are sequentially laminated, wherein the optical fiber penetrates the first photocatalytic slurry layer, the concrete slurry layer, and the second photocatalytic slurry layer;
• and conducting solidification and demolding to obtain the visible light-catalyzed translucent concrete.