Ionic liquid-assisted fabrication of metal–organic framework-derived indium oxide/bismuth oxyiodide p-n junction photocatalysts for robust photocatalysis against phenolic pollutants

•MOF-derived In2O3/BiOI photocatalysts were fabricated by ionic liquid-assisted method.•The sample shows efficient activity in decomposing OPP and PTBP.•The OPP degradation rate over In2O3/BiOI-2 was 5.67 times higher than that of BiOI.•Promoted charge separation and visible light absorption result in the higher activity.