Adsorption behaviors of heavy metal ions onto electrochemically oxidized activated carbon fibers

In this work, the effect of electrochemical oxidation treatments of activated carbon fibers (ACFs) was studied in heavy metal adsorption behaviors. As a result, the acidic or basic anodic treatment led to increases of Cr(VI), Cu(II), and Ni(II) adsorptions, which could be attributed to the oxygen-containing functional groups of the ACF surfaces.