Özet:

The development of efficient, economical and environmentally friendly heterogeneous catalysts for the removal of persistent organic pollutants from aquatic environments has recently become important. In this study, the activated carbon (AC) supported iron (CP-Fe) and cobalt (CP-Co) based catalysts were successfully prepared by the chemical precipitation method. The prepared catalysts were characterized using FTIR, FESEM, EDX-mapping, XRD, pHpzc, Boehm titration and BET surface area. It was determined that the specific surface areas of CP-Fe and CP-Co catalysts were 396.42 and 441.76 m2/g, respectively, and both catalysts had a mesoporous structure. SEM-EDX and XRD analysis showed that the iron and cobalt were uniformly dispersed on the AC support surface and iron in the structure was in the form of magnetite (Fe3O4) and the cobalt was in the amorphous form. The catalytic activities of the catalysts were evaluated for degradation of erythromycin (ERY) by persulfate activation. While 96% of ERY was decomposed for 60 min in the presence of CP-Fe catalyst, it was completely decomposed within 30 min in the presence of CP-Co catalyst. It was determined that both catalysts showed high catalytic activity for ERY removal with the synergistic effect of adsorption and degradation.

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