Recovery of copper from dilute cupric sulfate solution by electrodeposition method using boron-doped diamond electrodes

Keisuke Natsui, Chizu Yamaguchi, Yasuaki Einaga

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

The recovery of copper from wastewater is a key issue for environmental and economic aspects. The wastewater treatment containing copper ions has been carried out by various techniques. Among them, the electrodeposition is the "clean" method that is able to achieve the recovery of copper without requiring addition of chemicals and generating sludge or secondary wastes. However, the current efficiency would tend to decrease especially in a dilute solution, because hydrogen evolution and oxygen reduction reaction would occur as competition reaction. In this article, we study on the recovery of copper from dilute cupric sulfate solution as a model wastewater by an electrodeposition method using boron-doped diamond electrodes which have relatively higher hydrogen overpotential. Two types of boron-doped diamond electrodes were prepared with different boron doping level. The boron-doped diamond electrodes could achieve the recovery of copper with higher current efficiency because of inhibiting hydrogen evolution reaction, compared with glassy carbon electrode.

Original languageEnglish
JournalPhysica Status Solidi (A) Applications and Materials Science
DOIs
Publication statusAccepted/In press - 2016

Keywords

  • Boron-doped diamond
  • Copper
  • Electrodeposition
  • Wastewater

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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