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Fe (oxyhydr)oxides have been extensively studied due to their strong potential to immobilize arsenic. However, the reactivity of Fe (oxyhydr)oxides with adsorbed or structurally-incorporated As(V) is poorly understood. In this study, As(V)-free, -adsorbed [Sch*-As(V)] and structurally-incorporated schwertmannites [Sch-As(V)] were prepared, and their reactivity was compared during S(—II)-mediated dissolution...
A TiO 2 pillared montmorillonite (TiO 2 /MMT) adsorbent was used to remove As(III) and As(V) from aqueous solution with or without UV irradiation. The adsorption kinetics, role of pH, effect of UV, and column experiments are discussed herein. The Ti-polyoxocations in pillared montmorillonite (MMT) were crystallised to anatase in the interlayer and on the external surface with hydrothermal...
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