APPLICATION OF MANGANESE DIOXIDE NANOSPHERES IN ELECTRO-FENTON REACTION

LI Hao; WANG Hao-nan; REN Fei-peng; PENG Rui-chao

doi:10.13205/j.hjgc.202012005

Volume 38 Issue 12

Apr. 2021

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2020 > 38(12): 26-31

LI Hao, WANG Hao-nan, REN Fei-peng, PENG Rui-chao. APPLICATION OF MANGANESE DIOXIDE NANOSPHERES IN ELECTRO-FENTON REACTION[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(12): 26-31. doi: 10.13205/j.hjgc.202012005

Citation:

LI Hao, WANG Hao-nan, REN Fei-peng, PENG Rui-chao. APPLICATION OF MANGANESE DIOXIDE NANOSPHERES IN ELECTRO-FENTON REACTION[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(12): 26-31. doi: 10.13205/j.hjgc.202012005

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APPLICATION OF MANGANESE DIOXIDE NANOSPHERES IN ELECTRO-FENTON REACTION

doi: 10.13205/j.hjgc.202012005

1. Changjiang River Scientific Research Institute, Research Center on Mountain Torrent and Geologic Disaster Prevention of MWR, Wuhan 430010, China;
2. College of Chemistry & Molecular Sciences, Wuhan University, Wuhan 430072, China

Received Date: 2019-08-28
Available Online: 2021-04-23

Abstract

Abstract

In this work, a nano MnO₂ microsphere with high large specific surface area has been successfully prepared by a facile hydrothermal process. Then it was used to replace Fe²⁺ in Fenton reagent. Methylene blue (MB) was degraded by electro-like Fenton reaction. The experimental results showed that when the initial concentration of methylene blue solution was 30 mg/L, the optimal degradation condition was voltage of 5.3 V, 80 mg/L MnO₂, H₂O₂ solution content of 20.4 g/L, pH of 4. Then the degradation rate of MB reached 94.08% within 40 min.The changes of MnO₂ before and after the reaction were discussed and the reaction mechanism was proposed.This study could provide theoretical basis and guidance for electro-Fenton technology in practical application.
- manganese dioxide,
- electro-Fenton,
- dye degradatuon,
- catalytic oxidation

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References

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