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Adsorption Behaviors of 2,4-Dichlorophenol onto Hypercross-linked Resins

Jingping Wang, Xin-Hong Wang

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Abstract

Experimental investigations were conducted on the adsorption characteristics of 2,4 -dichlorophenol by two hypercross-linked resins JP-01 and XAD-4.The static adsorption was studied.Within temperature range of 288-313K, the equilibrium adsorption date was fitted to freundlich adsorption isotherm models to evaluate the model parameters.The enthalpies, free energy, entropy were indicative of an exothermic, a spontaneous and disorder decreasing process.The magnitudes for 2,4-dichlorophenol on JP-01 on XAD-4 show a physical adsorption process.The results showed that the JP-01 adsorbent was better than the Amberlite XAD-4 for removing the 2,4-dichlorophenol in aqueous solutions.

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Experimental investigations were conducted on the adsorption characteristics of 2,4 -dichlorophenol by two hypercross-linked resins JP-01 and XAD-4.The static adsorption was studied.Within temperature range of 288-313K, the equilibrium adsorption date was fitted to freundlich adsorption isotherm models to evaluate the model parameters.The enthalpies, free energy, entropy were indicative of an exothermic, a spontaneous and disorder decreasing process.The magnitudes for 2,4-dichlorophenol on JP-01 on XAD-4 show a physical adsorption process.The results showed that the JP-01 adsorbent was better than the Amberlite XAD-4 for removing the 2,4-dichlorophenol in aqueous solutions.

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Available abstract

Experimental investigations were conducted on the adsorption characteristics of 2,4 -dichlorophenol by two hypercross-linked resins JP-01 and XAD-4.The static adsorption was studied.Within temperature range of 288-313K, the equilibrium adsorption date was fitted to freundlich adsorption isotherm models to evaluate the model parameters.The enthalpies, free energy, entropy were indicative of an exothermic, a spontaneous and disorder decreasing process.The magnitudes for 2,4-dichlorophenol on JP-01 on XAD-4 show a physical adsorption process.The results showed that the JP-01 adsorbent was better than the Amberlite XAD-4 for removing the 2,4-dichlorophenol in aqueous solutions.

Key concepts: Adsorption, 2,4-Dichlorophenol, Amberlite, Freundlich equation, Chemistry, Exothermic reaction, Aqueous solution, Gibbs free energy

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