Electrodeposition of Cu2O particles on reinforced concrete substrate

•Cu2O was electrodeposited on reinforced concrete to control microbial corrosion.•The alkalize Cu(II) lactate solutions were modified.•Current density was determined for electrodeposited of Cu2O on concrete substrate.•Increasing the time of electrodeposition caused to co-deposit of CuO with Cu2O.

Cu2O as an antimicrobial agent was electrodeposited on reinforced concrete with the aim to control microbial corrosion in concrete sewers. Alkalize Cu(II) lactate were used as electrolyte and the concentration of copper sulfate was decreased from 0.6 M to 0.1 M and for lactic acid from 3 M to 0.75 M. The results showed the formation of Cu2O particles on concrete substrate. The investigation of electrodeposition time on the purity of Cu2O was revealed that increasing in the time of electrodeposition and depletion of OH− ions close to the substrate caused to co-deposit of Cu or CuO with Cu2O.

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