In this study, stable and recyclable cobalt–copper bimetallic MOFs were synthesized by a simple thermal solvent method to promote the efficient removal of doxorubicin hydrochloride.
For sake of further enhancing the catalytic performance of Co-MOFs and reducing th leaching of Co2+, Fe-doped Co-MOFs was prepared by one-step solvothermal method. The Fex/Co1 − x-MOFs with the best catalytic activity (Fe0.25Co0.75-MOFs) was obtained by changing the doping ratio of Fe3+. Under the action of 0.1g/L Fe0.25Co0.75-MOFs, pH = 7 and 0.2g/L PMS, 98.4% TC can be efficiently degraded only within 30 min, Moreover, the degradation efficiency increased with the increase of the catalyst and PMS. The effects of initial pH on tetracycline hydrochloride degradation was discussed, showing that Fe0.25Co0.75-MOFs can degrade tetracycline hydrochloride with excellent stability. Furthermore, the Fe0.25Co0.75-MOFs exhibits good reusability and stability in cycling experiments. Ultimately, free radical quenching experiments show that both SO4−• and •OH participated in the degradation of tetracycline hydrochloride, and SO4−• plays a major role. Based on some intermediates identified by lc-mg, possible degradation pathways are proposed.
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