An advanced Ag-based photocatalyst Ag2Ta4O11 with outstanding activity, durability and universality for removing organic dyes

Abstract

Constructing Ag-based photocatalysts by the incorporation of Ag⁺ ions into metal/nonmetal oxides for removing organic pollutants is a recently developed strategy, but overcoming their own photocorrosion is still a tremendous challenge. In this work, an advanced Ag-based photocatalyst Ag₂Ta₄O₁₁ is obtained by this strategy, which exhibits improved photocatalytic activity compared with Ta₂O₅ and the universality for degrading several organic dyes. Importantly, the Ag₂Ta₄O₁₁ photocatalyst has outstanding durability and reusability, which indicates that it has potential application prospects for organic wastewater treatment in the printing and dyeing industry.