Synthesis and Adsorption Properties of Salicylic Acid Modified Hypercrosslinked Polymer Toward 4-Chloro-Phenol and Heavy Metals

Guan Hua Meng; Bao He Liu; Yu Ling Wu; Jun Zhang

doi:10.4028/www.scientific.net/AMM.675-677.158

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 675-677Synthesis and Adsorption Properties of Salicylic...

Synthesis and Adsorption Properties of Salicylic Acid Modified Hypercrosslinked Polymer Toward 4-Chloro-Phenol and Heavy Metals

Abstract:

To explore the possibility of simultaneously adsorptive treating polluted water containing both organics and heavy metals, multifunctional polymeric resin NDA-1500 was prepared through chemically modification of chloromated polystyrene with salicylic acid. The FT-IR, BET surface area measurements and sodium capacity measurement were applied to characterize the properties of NDA-1500. The adsorption properties toward 4-chloro-phenol and heavy metals such as Pb²⁺, Cu²⁺ and Ni²⁺ ions were studied respectively. The adsorption data of the NDA-1500 toward 4-chloro-phenol fit well with Langmuir model. The adsorption capacity of NDA-1500 toward 4-chloro-phenol was higher than that of unmodified NDA-150 and adsorption capacity decreased with increase of temperature suggesting the exothermic process. The removal efficiencies of metal ions by NDA-1500 were also 2-3 times higher than that of NDA-150 and the metals were recovered completely with 0.2 mol/L hydrochloric acid.