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Abstract
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In this work, CoFe2O4
nanoparticles were fabricated by the Pechini sol–gel technique. Then, Cu3(
BTC)2 or HKUST-1
metal–organic framework was used to prepare Co-ferrite@HKUST-1 composite. The as-synthesized composite powder and
Co-ferrite nanoparticles were compared by their performance for methyl orange (MO) and methylene blue (MB) degradation.
X-ray diffractometry (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), and vibrating
sample magnetometer (VSM) were utilized to evaluate the as-prepared samples. Results showed that the average grain size
was about 20–30 nm. The magnetic saturation value for Co-ferrite nanoparticles and Co-ferrite@HKUST-1 composite were
65 and 20 emu/g, respectively. Results of the removal efficiency of the Co-ferrite samples approved that just the cation dyes
concentrations decreased, whereas in the case of the Co-ferrite@HKUST-1 composite samples both anionic and cationic
organic dyes were degraded efficiently.
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