Effective Co2+ removal from aqueous solution and industrial wastewater using ZIF-7 and MnFe2O4-modified walnut shell biochar composite

In this study, we developed a novel magnetic composite of walnut shell biochar (WSB) and modified it with ZIF-7 for the purpose of removing Co2+ ions. We conducted a comprehensive evaluation of its performance in Co2+ removal, considering various factors such as contact time, temperature, adsorbent dose, pH, and initial Co2+ concentration. Utilizing response surface […]