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BACKGROUND: A mesoporous alumina supported nanosized Fe2O3 was prepared through an original synthesis procedure and used as a heterogeneous catalyst for the Fenton process degradation of the model azo dye C.I. Acid Orange 7 enhanced by ultrasound irradiation (US/Fe2O3‐Al2O3‐meso/H2O2 system). The effect of various operating conditions was investigated, namely hydrogen peroxide concentration, initial...
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