Efficient photocatalytic degradation of aniline blue under solar irradiation by ternary cobalt ferrite/graphitic carbon nitride/bentonite nanocomposite
2022
Thakurata, Debasish Guha | Das, Krishna Chandra | Dhar, Siddhartha Sankar
The current research describes the synthesis, characterization and application of CoFe₂O₄/g-C₃N₄/bentonite as a novel nanocomposite for the efficient degradation of aniline blue under solar irradiation. Powder XRD, TIR, SEM, TEM, VSM and UV-DRS were used to describe the formation and morphology of the composite. The composite has been used as a heterogeneous photocatalyst to degrade aniline blue in the presence of H₂O₂. In the presence of H₂O₂ in solar radiation, it was possible to degrade 88.5% of 10 ppm aniline blue solution just in 50 min using 50 mg of the composite. The improvement in photodegradation rate in the existence of H₂O₂ was attributed to the advanced oxidation process (AOP) mechanism of photo-Fenton involving the production of reactive hydroxyl and perhydroxyl radicals. The degradation was found to follow first-order kinetics with high regression coefficient with elevated rate constant.
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