Synthesis of Carbon Nanotubes from Graphite and Investigation of the Catalytic Activity of MWCNTs/Cr2O3–NiO with the Removal of Bismarсk Brown G Dye from Its Aqueous Solution
DOI:
https://doi.org/10.15407/ujpe64.4.276Keywords:
dyes removal, Bismarck brown G, carbon nanotubes, nanocompositeAbstract
This work describes the synthesis of carbon nanotubes from graphite by the chemical precipitation method and nanocomposites of multiwall carbon nanotubes (MWCNTs) with co-oxide nanocomposite (MWCNTs)/MO(Cr2O3–NiO). Those nanocomposites were prepared with the use of a simple evaporation and a drying process. The obtained composites were characterized, by using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and Raman spectroscopy. The activity of the prepared composites was investigated by the following removal of a Bismarck brown G dye (BBG) from the aqueous solution via photocatalytic reactions. The efficiency of the photocatalytic dye removal over the prepared composites was 91.43% after one hour of reaction under the optimal conditions, which were a mass dosage of 0.03 g, pH = 5, and a temperature of 30 ∘C.
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