Abstract
In order to improve the properties of titania nanotubes (TNTs), Fe-doped TNTs were prepared by impregnation method. The crystalline phase, tubular structure and special surface area of TNTs were characterized by XRD, TEM and BET. XRD spectra results revealed that the crystalline phase of TNTs was unchanged after doping iron. The TEM revealed that the materials prepared by hydrothermal method had a complete tubular structure and that structure was completely intact after doping iron. The special surface areas of Fe-doped and bare TNTs were 233.9m2/g and 298.2m2/g , respectively, which indicated that the surface area was decreased after doping iron. The adsorption amount of As(Ⅴ) results reached 35.5 mg/g at 15°C for the Fe-doped TNTs, while just 10.5 mg/g for the bare ones at the same condition, suggesting the application in the treatment of low concentrations of pollutants in water as an efficient adsorbent for Fe-doped TNTs.
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