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Efficient Fe(III)/Fe(II) cycling triggered by MoO2 in Fenton reaction for the degradation of dye molecules and the reduction of Cr(VI)
Authors:Bin Shen  Chencheng Dong  Jiahui Ji  Mingyang Xing  Jinlong Zhang
Institution:Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
Abstract:There is a relatively low efficiency of Fe(III)/Fe(II) conversion cycle and H2O2 decomposition (<30%) in conventional Fenton process, which further results in a low production efficiency of  /></sup>OH and seriously restricts the application of Fenton. Herein, we report that the commercial MoO<sub>2</sub> can be used as the cocatalyst in Fenton process to dramatically accelerate the oxidation of Lissamine rhodamine B (L-RhB), where the efficiency of Fe(III)/Fe(II) cycling is greatly enhanced in the Fenton reaction meanwhile. And the L-RhB solution could be degraded nearly 100% in 1 min in the MoO<sub>2</sub> cocatalytic Fenton system under the optimal reaction condition, which is apparently better than that of the conventional Fenton system (~50%). Different from the conventional Fenton reaction where the <sup><img style=
Keywords:Corresponding authors    Fenton reaction  Co-catalytic  Molybdenum dioxide  Dye wastewater
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