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6CCVD Research

Electro-activated persulfate oxidation of malachite green by boron-doped diamond (BDD) anode - effect of degradation process parameters

At a Glance

Section titled “At a Glance”
MetadataDetails
Publication Date2020-03-01
JournalWater Science & Technology
AuthorsDongtian Miao, Guoshuai Liu, Qiuping Wei, Naixiu Hu, Kuangzhi Zheng
InstitutionsHarbin Institute of Technology, Central South University
Citations31

Abstract

Section titled “Abstract”

Abstract In this paper, boron-doped diamond (BDD) electro-activated persulfate was studied to decompose malachite green (MG). The degradation results indicate that the decolorization performance of MG for the BDD electro-activated persulfate (BDD-EAP) system is 3.37 times that of BDD electrochemical oxidation (BDD-EO) system, and BDD-EAP system also exhibited an enhanced total organic content (TOC) removal (2.2 times) compared with BDD-EO system. Besides, the degradation parameters such as persulfate concentration, current density, and pH were studied in detail. In a wider range of pH (2-10), the MG can be efficiently removed (>95%) in 0.02 M persulfate solution with a low current density of 1.7 mA/cm2 after 30 min. The BDD-EAP technology decomposes organic compounds without the diffusion limitation and avoids pH adjustment, which makes the EO treatment of organic wastewater more efficient and more economical.

Tech Support

Section titled “Tech Support”

Original Source

Section titled “Original Source”

References

Section titled “References”
  1. 2011 - Boron-doped diamond anodic treatment of landfill leachate: evaluation of operating variables and formation of oxidation by-products [Crossref]
  2. 2018 - A comprehensive study on the electrocatalytic degradation, electrochemical behavior and degradation mechanism of malachite green using electrodeposited nanostructured beta-PbO2 electrodes [Crossref]
  3. 2014 - Electrochemical enhanced heterogeneous activation of peroxydisulfate by Fe-Co/SBA-15 catalyst for the degradation of Orange II in water
  4. 2018 - Treatment of winery wastewater by anodic oxidation using BDD electrode [Crossref]
  5. 2019 - Ascorbic acid induced activation of persulfate for pentachlorophenol degradation [Crossref]
  6. 2008 - Oxidative destruction of perfluorooctane sulfonate using boron-doped diamond film electrodes [Crossref]
  7. 2014 - Critical review of electrochemical advanced oxidation processes for water treatment applications
  8. 2019 - Degradation of Triclosan in soils by thermally activated persulfate under conditions representative of in situ chemical oxidation (ISCO) [Crossref]
  9. 2019 - Rapid and efficient activated sludge treatment by electro-Fenton oxidation [Crossref]
  10. 2017 - High-performance non-enzymatic glucose sensor based on nickel-microcrystalline graphite-boron doped diamond complex electrode [Crossref]

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