Abstract
This work exhibits a remarkable enhancement in visible photocatalytic activity through the fabrication of a 0D/3D composite photocatalyst of AuPt@g-C3N4 foam. Au and Pt elements with a mole ratio of 1:1 are in the bimetallic alloy nanoparticle form, which is uniformly dispersed on the surface of g-C3N4 foam. When the average AuPt alloy nanoparticle size is 21 nm, AuPt@g-C3N4 foam shows the highest photocatalytic activity, which is about 1 time higher than that of bare g-C3N4 foam. Based on the experimental results, the enhanced photocatalytic activity of AuPt@g-C3N4 foam is mainly ascribed to the enhancement of visible-light adsorption and the acceleration of charge separation.
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