Preparation of Zn/Mn-MOFs/GO composites and adsorption of Minocycline and Orange IV in aqueous solution

The Zn/Mn-MOFs/GO composites were synthesized via a solvothermal method, and their structural characteristics were investigated using XRD, SEM, and FT-IR techniques for the adsorption study of Minocycline and Orange IV. The experimental results show that when the concentration of the minocycline solution is 30 ppm and 150 mg of GO/Zn/Mn - MOF composites is added, the maximum removal rate can reach 94.4%. When the concentration of the Orange IV solution is 30 ppm and 150 mg of GO/Zn/Mn - MOF composites is added, the maximum removal rate can reach 99.7% within 30 min. The influence of pH on the adsorption performance of these composites for Minocycline and Orange IV was thoroughly examined. The adsorption effect is better under acidic conditions. In summary, the Zn/Mn-MOFs/GO composite demonstrates excellent capability in removing Minocycline and Orange IV, offering significant implications for the management of organic pollutants.