PREPARATION OF FLOWER-LIKECo₃O₄/Fe₃O₄MAGNETIC MICROSPHERES FOR PHOTODEGRADATION OFRhBUNDER UV LIGHT

Abstract

Flower-like Co 3 O 4/ Fe 3 O 4 magnetic microspheres were prepared by coprecipitation of Fe 2+ and Fe 3+ in presence of flower-like Co 3 O 4 microspheres as template. The preparation process included three steps: preparation of flower-like Co 3 O 4 microspheres by hydrothermal method; immersion of Fe 2+ and Fe 3+ ions; coprecipitation in the presence of OH -. Rhodamine B (RhB) was chosen as model pollutants to investigate the photodegradation capacities of Co 3 O 4/ Fe 3 O 4 magnetic microspheres. The results showed that the microspheres exhibited excellent degradation property and can be recycled to use again. After four times use the degradation efficiency was still above 90%.

Adsorptive remediation of environmental pollutants using magnetic hybrid materials as platform adsorbents

“…Magnetic nanoparticles are generally made from Ni, Fe, Co and the metal oxides of these metals, which normally exhibits strong magnetic properties, i.e., ferromagnetism, e.g., magnetite (Fe3O4) (Ali et al, 2015c), maghemite, and CoFe2O4 (Yang et al, 2021a;Ali et al, 2020b;Zhang et al, 2013). The methods preparing MNPs consist of coprecipitation synthesis, hydrothermal synthesis, sol-gel synthesis, and solvothermal synthesis.…”