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Ag2O/Fe2O3 p-n heterojunctions composed of flower-like Fe2O3 and Ag2O nanoparticles have been prepared via a solvothermal precipitation-deposition method. They display higher photocatalytic activities than pure Fe2O3 for the degradation of RhB under visible-light irradiation. Among them, the Ag2O/Fe2O3 heterojunction with the Ag/Fe molar ratio of 0.2/1 (0.2Ag-Fe) exhibits the highest activity and...
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