EDTA-functionalized hierarchical porous microspheres for effective cobalt ion recovery from water

Abstract

The new adsorbent EDTA@PSV, which is a hierarchical porous microsphere modified with ethylenediaminetetraacetic acid, has demonstrated its effectiveness in extracting valuable metals. With a high surface area of 665 m² g⁻¹ and a large porosity of 90%, it exhibits significant potential for adsorbing Co²⁺, as supported by density functional theory simulations and experimental results.