Arsenate and arsenite typically co-exist in groundwater. Arsenite is more toxic than arsenate,
while it is more difficult to be removed than arsenate. In order to effectively remove arsenate
and arsenite simultaneously from water solution, a nanostructured zirconium–manganese
binary hydrous oxide was successfully developed in this study. The amorphous sorbent was
aggregate of nanoparticles with a high surface area of 213m2g− 1. Our sorption experiments
showed that the nano-scale particles could effectively oxidize As (III) to As (V) and greatly …

In this work, surface of graphene oxide (GO) was functionalized by zirconium (Zr). The GO-Zr
nanocomposite was characterized by XRD, SEM, XPS and zeta-potential analysis. Sheets of
the GO-Zr were strongly wrinkled and the layered structure of GO was disrupted after
adsorption of Zr. The GO-Zr nanocomposite was applied for the removal of Arsenate (As (V))
and Arsenite (As (III)) from aqueous solutions. The dispersibility of GO-Zr nanocomposite in
water changed remarkably after adsorption of arsenic and tendency to precipitate was …