Fig. 7
From: Theoretical insights in catalytic reduction of Cr(VI) using Pd/Fe nitrogen doped mesoporous carbon
Plots illustrating the concurrent interaction effects on the response surface (a) pH (B) and [Cr2O72−] (C), (b) pH (B) and [HCOONa] (D), (c) [Cr2O72−] (C) and [HCOONa] (D) on the Cr(III) production.
