Accelerated FeIII/FeII redox cycle of Fenton reaction system using Pd/NH2-MIL-101(Cr) and hydrogen

In this paper, a novel improvement in the catalytic Fenton reaction system named MHACF-NH 2 -MIL-101(Cr) was constructed based on H 2 and Pd/NH 2 -MIL-101(Cr). The improved system would result in an accelerated reduction in Fe III , and provide a continuous and fast degradation efficiency of the 10 mg L -1 4-chlorophenol which was the model contaminant by using only trace level Fe II . The activity of Pd/NH 2 -MIL-101(Cr) decreased from 100% to about 35% gradually during the six consecutive reaction cycles of 18 h. That could be attributed to the irreversible structural damage of NH 2 -MIL-101(Cr).