Fig. 1From: Catalytic oxidation of arsenite and reaction pathways on the surface of CuO nanoparticles at a wide range of pHsKinetics of As(III) oxidation on CuO NPs surface at pH 6 (a), pH 9 (b), and pH 11 (c) in the open system, and pH 11 in the N2 atmosphere (d). These figures showed the concentration distribution of As(III) and As(V) species in solution, on CuO NPs surface, and total oxidized As(III) amount during the As(III) oxidation reactionBack to article page