| 초록 |
The adsorption behavior of In(III) by Zn/Al layered double hydroxide (Zn/Al-LDH) was studied as a function of contact time, pH, ionic strength, and temperature under ambient conditions. The results showed that the kinetic adsorption could be described by a pseudo-second order model very well. The adsorption of In(III) on Zn/Al-LDH was strongly dependent on pH and ionic strength. The presence of negatively ions enhanced the adsorption of In(III) on Zn/Al –LDH at low pH , whereas reduced In(111) adsorption at high PH. In(III)-adsorbed assembly, was carefully examined by Fourier transform infrared spectroscopy(FT-IR), UV spectroscopy XRD, and X-ray photoelectron spectroscopy(XPS). The results show Zn/Al-LDH is a promising material for the pro-concentration and separation of pollutants from large volumes of aqueous solution. |
