The promotion effect of FeS₂ on Sb₂S₃ bioleaching and Sb speciation transformation.

ABSTRACT: Stibnite (Sb₂S₃) is an important but difficult to biologically leach mineral, so it is important to find a potential scheme for improving the bioleaching rate of Sb₂S₃. In this study, by combining experiments and first-principles density functional theory (DFT) calculations, the impact and related mechanisms of pyrite (FeS₂) on stibnite (Sb₂S₃) bioleaching were studied for the first time. The bioleaching results revealed that FeS₂ obviously improved the Sb₂S₃ bioleaching rate, and in the 0.5FeS₂:0.5CuFeS₂ system, the bioleaching rate of Sb₂S₃ increased from 2.23 to 24.6%, which was the best mass mixing ratio. The XPS and XANES results rev

SUBMITTER: Zheng XF 

PROVIDER: S-EPMC11790673 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature