Research Article
[Retracted] Simple Preparation of the CuO•Fe3O4/Silica Composite from Rice Husk for Enhancing Fenton-Like Catalytic Degradation of Tartrazine in a Wide pH Range
Figure 7
(a) Degradation efficiency of tartrazine in the different catalytic systems and pHs, (b) degradation of tartrazine in CuO•Fe3O4/SiO2 at the different initial pHs, and (c) fitting plots.
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