%0 Journal article %A Noubactep, Chicgoua %T Comments on: "The effect of substituent groups on the reductive degradation of azo dyes by zerovalent iron" by M. Hou, et al. [J. Hazard. Mater. 145 (2007) 305] %R 10.23689/fidgeo-820 %J Journal of hazardous materials %V 148 %N 3 %X This letter discusses possible improvements in experimental conditions to enable a purposeful discussion on the effect of substituent groups on the reductive degradation of azo dyes by elemental iron (Fe0) in a recent article by Hou and his co-workers. Also recalled is the pH dependence of the iron corrosion mechanism which is usually overlooked in the iron technology literature. %U http://hdl.handle.net/11858/00-1735-0000-0001-33E2-1 %~ FID GEO-LEO e-docs