Oxygen-vacancy enhanced CoO/CeO2 heterojunction for synchronous regulation of sulfur resourcing and selenium adsorption separation from flue gas desulfurization wastewater

A dual functional material of oxygen-vacancy-enriched cobalt-ceria bimetallic oxide (OV-CoO/CeO 2 ) provides a new method for the simultaneous production of high-quality sulfate and separation of toxic Se from flue gas desulfurization wastewater.