The mechanism study of trace Cr(VI) removal from water using Fe0 nanorods modified with chitosan in porous anodic alumina

Fe0 nanorods modified with chitosan in porous anodic alumina (PAA) were prepared as adsorbent. Adsorption of trace Cr(VI) onto adsorbent was tested as a function of solution pH value, initial Cr(VI) concentration and adsorption time. The results showed that PAA can limit the size, disperse Fe0 nanorods and protect them from oxidation. In the adsorption process, it was found that both PAA and chitosan can supply bridges between Fe0 nanorods and...