Insights into the photocatalytic activation persulfate by visible light over ReS2/MIL-88B(Fe) for highly efficient degradation of ibuprofen: Combination of experimental and theoretical study

•ReSFe heterojunction exhibited enhanced visible-light-driven PS activation.•ReSFe-0.2 showed optimum IBP catalytic degradation activity.•Improved electron transfer ability, visible light utilization efficiency and PS activation ability make higher IBP degradation.•O2∙-, •OH and SO4∙- were the main reactive species responsible for IBP degradation.