Experimental evaluation reveals efficient hexavalent chromium removal by cationic framework NU-56 in acidic wastewater, highlighting functionalized adsorbents for remediation.
Key Points
A cationic metal–organic framework with amino-functionalized isonicotinic acid efficiently captures hexavalent chromium under acidic aqueous conditions.
Adsorption capacity reaches a maximum of 68 mg/g across acidic aqueous conditions, with structural integrity maintained throughout the elimination process.
Adsorption kinetics and isotherm assessments indicate that functionalized metal–organic frameworks offer viable strategies for oxy-anion wastewater remediation.