, Volume 37, Issue 1, pp 36-41

Catalysis of the Sodium Sulfide Reduction of Methylviologene by CuS Nanoparticles

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Feasibility was demonstrated for the catalysis of the sodium sulfide reduction of methylviologene (MV2+) in aqueous solution using cupric sulfide nanoparticles. The catalytic activity of the nanoparticles depends on their size. The basic features were found for the formation of the MV radical–cation in the reduction of MV2+ by HS anions in the presence of CuS nanoparticles as the catalyst. This is an equilibrium reaction.