Skip to content
6CCVD Research

PbO2 modified BDD electrode by dicationic ionic liquids assisted electrodeposition for efficient electrocatalytic degradation of pesticide wastewater

At a Glance

Section titled ā€œAt a Glanceā€
MetadataDetails
Publication Date2022-08-16
JournalWater Science & Technology
AuthorsYining Tang, Shangce Feng, Deliang He
InstitutionsHunan University
Citations4

Abstract

Section titled ā€œAbstractā€

Abstract Pesticide wastewater is difficult to treat, and it is necessary to develop a new anode material electrochemical oxidation to efficiently degrade pesticide wastewater. DIL-PbO2-Ti/BDD electrodes with better electrocatalytic oxidation performance were obtained by using dicationic ionic liquid (DIL) for assisted electrodeposition of PbO2 modified boron-doped diamond (BDD) electrodes. At a current density of 100 mA cmāˆ’2 and a temperature of 25 Ā°C, the DIL-PbO2-Ti/BDD electrode was used as anode and titanium plate as cathode. The electrochemical window and oxygen evolution potential (OEP) of the DIL-PbO2-Ti/BDD electrode obtained by CV testing at a scan rate of 50 mV sāˆ’1 in 1 M H2SO4 were 4.12 and 3.29 V, respectively. Under the conditions of current density of 100 mA cmāˆ’2, 25 Ā°C, pH 12, salt content of 8%, chemical oxygen demand (COD) of 24,280.98 mg Lāˆ’1, and total nitrogen (TN) content of 5268 mg Lāˆ’1, after electrification for 12 h, the removal efficiency of COD and TN reached 64.88 and 67.77%, respectively, indicating that the DIL-PbO2-Ti/BDD electrode has excellent electrocatalytic performance. In order to further understand the mechanism of electrochemical degradation of pesticide wastewater, HPLC-MS was used to detect the intermediates in the degradation process, and the possible degradation pathways were proposed in turn.

Tech Support

Section titled ā€œTech Supportā€

Original Source

Section titled ā€œOriginal Sourceā€

References

Section titled ā€œReferencesā€
  1. 1999 - Photodecomposition of the carbamate pesticide carbofuran: kinetics and the influence of dissolved organic matter [Crossref]
  2. 2022 - Tertiary treatment of a mixture of composting and landfill leachates using electrochemical processes
  3. 2015 - Decontamination of wastewaters containing synthetic organic dyes by electrochemical methods. an updated review
  4. 2010 - Anodic oxidation of phenol on Ti/IrO2 electrode: experimental studies
  5. 2017 - Can carbamates undergo radical oxidation in the soil environment? A case study on carbaryl and carbofuran [Crossref]
  6. 2016 - Role of SiOx interlayer in the electrochemical degradation of Amaranth dye using SS/pbo2 anodes [Crossref]
  7. 2020 - Polypyrole, polyaniline and sodium alginate biocomposites and adsorption-desorption efficiency for imidacloprid insecticide [Crossref]
  8. 2022 - Biochar-based composites for remediation of polluted wastewater and soil environments: challenges and prospects
  9. 2021 - Anodic oxidation for the degradation of organic pollutants: anode materials, operating conditions and mechanisms. A mini reviewAnode materials, operating conditions and mechanisms. A mini review
  10. 2021 - Micro-area investigation on electrochemical performance improvement with Co and Mn doping in pbo2 electrode materials [Crossref]

Reads Similar to This

Detection of hydroxyl radical in the electro catalytic system of BDD electrode Determination of Estrogen Metabolites by HPLC-ECD at Boron-Doped Diamond and Nitrogen- Incorporated Tetrahedral Amorphous Carbon Thin Film Electrodes Boron-doped diamond electrodes for electrochemical glucose detection via enzymatic and non-enzymatic approaches