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以D201和氨基修饰的交联苯乙烯-二乙烯苯共聚体ZH202为吸附剂,啶虫脒和苯甲酸为吸附质,在单组分、双组分水溶液中,不同温度(288、303、313K)下进行静态吸附实验,考察树脂对吸附质的吸附行为,吸附选择性。实验结果表明,2种吸附剂在单组分和双组分体系中对2种吸附质的吸附等温线均符合Freundlich方程;通过吸附体系的热力学参数及吸附等温线说明苯甲酸在2种吸附剂上的吸附过程均为吸热过程,啶虫脒在D201和ZH202树脂上的吸附过程属放热的物理吸附过程;树脂在水溶液双组分吸附体系中,在较低的浓度时,呈现竞争吸附现象,在较高浓度时,呈现协同吸附现象。
D201 and amino-modified cross-linked styrene-divinylbenzene copolymer ZH202 as adsorbent, acetamiprid and benzoic acid as adsorbate, in one-component, two-component aqueous solution at different temperatures (288,303,313 K ) Static adsorption experiments were conducted to investigate the resin adsorption of adsorbate behavior, adsorption selectivity. The experimental results show that the adsorption isotherms of the two adsorbents are in accordance with the Freundlich equation in one-component and two-component systems. The thermodynamic parameters and adsorption isotherms of the adsorbents indicate that the adsorption of benzoic acid on two adsorbents The adsorption process of acetamiprid on D201 and ZH202 resin was an exothermic physical adsorption process. The resin showed a competitive adsorption at low concentration in aqueous two-component adsorption system Phenomenon, at higher concentrations, showing synergistic adsorption phenomenon.