Alkylamine-intercalated nanodimensional layered zirconium phosphate was used to adsorb 4-chlorophenol from water. Powder X-Ray Diffraction patterns of 4-chlorophenol in dimethylhexadecylamine intercalated zirconium phosphate (ZrP-DHDA) and butylamine intercalated zirconium phosphate (ZrP-BA) suggest different orientations of 4-chlorophenol in the gallery space of the two adsorbents. The change in 4-chlorophenol concentration during the adsorption process was monitored using UV-vis absorption spectroscopy. The adsorption characteristics of the layered material follow the Langmuir adsorption model. The sorption kinetics data were well fitted by a pseudo-second order model. ZrP-DHDA had a higher adsorption capacity than ZrP-BA. The rate constant k, the removal capacity qe and the initial rate constant for adsorption of 4-chlorophenol by ZrP-DHA were 1.2 x 10-2 g/mg min, 588 mg/g and 71 mg/g min respectively and 2.8 x 10-2 g/mg min, 51 mg/g and 7 mg/g min respectively for the removal of 4-chlorophenol by ZrP-BA.

Kinetics of adsorption of 4-chlorophenol by nanodimensional alkylamine-intercalated zirconium phosphate

239th National Meeting (2010)

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