Organic arsenics have been frequently detected in natural environments and regarded as a group of emerging contaminants. Elucidating the migration of organic arsenics requires a deep understanding of intrinsic adsorption mechanisms of organic arsenics on iron-bearing minerals, which are seldom investigated. In this study, we investigated the facet-dependent adsorption behavior of phenylarsonic acid (PhAs) on hematite nanocrystals with open circuit potential (OCP) analysis, batch adsorption experiments, adsorption isotherm curves, synchrotron-ba...
