2-Naphthalenesulfonic Acid Adsorption on Composite Weakly Basic Resin

Shan Yu; Chang Hai Li; Dong Mei Jia

doi:10.4028/www.scientific.net/AMR.1046.34

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2-Naphthalenesulfonic Acid Adsorption on Composite Weakly Basic Resin
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2-Naphthalenesulfonic Acid Adsorption on Composite Weakly Basic Resin

Abstract:

The hydroxyl alumina impregnated weakly basic resin composite (D301Al) successfully prepared through incorporation of hydroxyl alumina into the D301 resin for 2-naphthalenesulfonic acid (2-NSA) removal from aqueous solution. The structure of D301Al was examined using scanning electron microscopy and Fourier transform infrared spectroscopy. The adsorption behaviors of 2-NSA on D301Al were investigated by static adsorption experiments. Effects of pH of solution, temperature and contact time were determined. The results indicated D301Al reached the maximum adsorption capacity to 2-NSA with pH 2.4. Nonlinear regression was used to estimate of Langmuir and Freundlich model parameters. And the Langmuir model can give a satisfactory fit of the experimental equilibrium data. The kinetic studies indicated that the adsorption of D301Al for 2-NSA can establish adsorption equilibrium at 8 h. The pseudo-first-order and pseudo-second-order rate models could characterize the kinetic data of 2-NSA adsorption on D301Al.