Yannick Mamindy-Pajany, Charlotte Hurel
Surface complexation reactions on minerals affect the fate and transport of arsenic in environmental systems and the global cycle of this element. This work studied the sorption of As(V) on two commercial iron oxides (hematite and goethite) as a function of various physico-chemical parameters like pH and ionic strength. The main trend observed was a strong retention of arsenic in acidic pH conditions, with decreased sorption on both sorbents at alkaline pH values. The sorption experiments revealed that ionic strength does not significantly affect arsenate adsorption, suggesting the formation of an inner sphere surface complex. At natural water pH levels, both hematite and goethite demonstrated the ability to adsorb over 80% of arsenic, regardless of the initial concentration. Hence, the iron oxides examined in this study present suitability as candidates for As(V) removal technologies.
@article{15fcd29c-3211-4e09-badc-75cc1ff3d9bf,
title={Arsenic adsorption onto hematite and goe},
author={Yannick Mamindy-Pajany and Charlotte Hurel},
year={2026},
language={en}
}TY - JOUR TI - Arsenic adsorption onto hematite and goe AU - Yannick Mamindy-Pajany AU - Charlotte Hurel PY - 2026 LA - en ER -
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