Surface-catalyzed chromium(VI) reduction: reactivity comparisons of different organic reductants and different oxide surfaces

The ability of different organic compounds to catalyze chromium(VI) reduction reactions was investigated in the presence and absence of oxide surfaces. The results showed that surface-catalyzed Cr(VI) reduction by titanium dioxide has the highest efficiency. Likewise, geothite also displayed quite high catalytic reactivity, but less than that of titanium dioxide.