Effect of Cu content on the catalytic performance of Cu–Fe-based amorphous alloys fabricated via LPBF

Abstract

With high forming accuracy and material utilization, laser material additive technology provides technical support for preparing amorphous alloys with complex structures. In this paper, Cu_x-Fe-based amorphous alloys were made into amorphous alloy samples by LPBF technology. For the excellent catalytic performance of Cu_x-Fe-based amorphous alloys, the influence of Cu content on the catalytic performance of Cu_x-Fe-based amorphous alloys in the amorphous samples prepared by LPBF was systematically investigated under the specific experimental conditions. The results showed that the catalytic degradation efficiency of Cu_x-Fe-based amorphous alloys for methyl orange dye showed a tendency of first increasing and then decreasing with the increase of Cu content. Among them, the Cu_x-Fe-based amorphous alloy with 35 % Cu content had the best catalytic degradation performance for methyl orange dye at a concentration of 0.04 g/L. Its degradation efficiency was still as high as 95 % in 40 min after repeated degradation 10 times. The Cu_x-Fe-based amorphous alloys prepared by LPBF technology have very high catalytic activity, which provides a more effective and economical technical means for wastewater degradation.