Study of nitrate contaminants removal from groundwater on copper modified BDD electrode

Peijing Kuang, Yubo Cui, Chuanping Feng, Yasuaki Einaga

Research output: Contribution to journalConference articlepeer-review

Abstract

The electrochemical nitrate reduction by using boron-doped diamond (BDD) and copper modified boron-doped diamond (Cu-BDD) electrodes was investigated at various potentials. Nitrate reduction efficiency and the products distribution was strongly dependent on the applied potential for both electrodes. The highest nitrate reduction efficiency of 77% was obtained at -2.0 V (vs. Ag/AgCl) by using Cu-BDD. Compared with BDD electrode, nitrate reduction on Cu-BDD electrode occurred at more positive potential. Copper oxides formed on BDD surface efficiently promoted enhanced conductivity of electrode to promote electrons transfer during nitrate reduction process. Meanwhile, the catalytic ability of copper was also conductive to the nitrate transformation. Therefore, the developed Cu-BDD would be a promising approach for efficient nitrate removal from groundwater.

Original languageEnglish
Article number04024
JournalE3S Web of Conferences
Volume194
DOIs
Publication statusPublished - 2020 Oct 15
Event2020 5th International Conference on Advances in Energy and Environment Research, ICAEER 2020 - Virtual, Online, China
Duration: 2020 Sep 182020 Sep 20

ASJC Scopus subject areas

  • Environmental Science(all)
  • Energy(all)
  • Earth and Planetary Sciences(all)

Fingerprint Dive into the research topics of 'Study of nitrate contaminants removal from groundwater on copper modified BDD electrode'. Together they form a unique fingerprint.

Cite this