@QA-PNIPAM involves a synergistic process: initial capture via ion exchange and electrostatic interaction with quaternary ammonium groups, followed by the reduction of highly toxic Cr(VI) to less toxic Cr(III) by amino groups. This work presents a temperature-controlled regeneration method for adsorbents, enabling a green treatment strategy for chromium-containing wastewater.
Jiang et al. (Tue,) studied this question.