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

Peijing Kuang; Yubo Cui; Chuanping Feng; Yasuaki Einaga

doi:10.1051/e3sconf/202019404024

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

Peijing Kuang, Yubo Cui, Chuanping Feng, Yasuaki Einaga

Department of Chemistry

Research output: Contribution to journal › Conference article › peer-review

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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 language	English
Article number	04024
Journal	E3S Web of Conferences
Volume	194
DOIs	https://doi.org/10.1051/e3sconf/202019404024
Publication status	Published - 2020 Oct 15
Event	2020 5th International Conference on Advances in Energy and Environment Research, ICAEER 2020 - Virtual, Online, China Duration: 2020 Sept 18 → 2020 Sept 20

ASJC Scopus subject areas

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

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10.1051/e3sconf/202019404024

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title = "Study of nitrate contaminants removal from groundwater on copper modified BDD electrode",

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.",

author = "Peijing Kuang and Yubo Cui and Chuanping Feng and Yasuaki Einaga",

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doi = "10.1051/e3sconf/202019404024",

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TY - JOUR

T1 - Study of nitrate contaminants removal from groundwater on copper modified BDD electrode

AU - Kuang, Peijing

AU - Cui, Yubo

AU - Feng, Chuanping

AU - Einaga, Yasuaki

N1 - Publisher Copyright: © The Authors, published by EDP Sciences, 2020.

PY - 2020/10/15

Y1 - 2020/10/15

N2 - 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.

AB - 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.

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U2 - 10.1051/e3sconf/202019404024

DO - 10.1051/e3sconf/202019404024

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AN - SCOPUS:85097192686

SN - 2267-1242

VL - 194

JO - E3S Web of Conferences

JF - E3S Web of Conferences

M1 - 04024

T2 - 2020 5th International Conference on Advances in Energy and Environment Research, ICAEER 2020

Y2 - 18 September 2020 through 20 September 2020

ER -

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

Abstract

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