ADSORPTION OF PHENOLIC ACIDS ON A NEW TYPE OF AMINO MODIFIED POLYSTYRENE

WANG Xuejiang; ZHANG Quanxing; ZHAO Jianfu; XIA Siqing; CHEN Ling

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ADSORPTION OF PHENOLIC ACIDS ON A NEW TYPE OF AMINO MODIFIED POLYSTYRENE

Research Article | 更新时间：2021-03-19

- ADSORPTION OF PHENOLIC ACIDS ON A NEW TYPE OF AMINO MODIFIED POLYSTYRENE
- Acta Polymerica Sinica Issue 1, Pages: 93-97(2005)
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- Published：20 February 2005，
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WANG Xuejiang, ZHANG Quanxing, ZHAO Jianfu, XIA Siqing, CHEN Ling. ADSORPTION OF PHENOLIC ACIDS ON A NEW TYPE OF AMINO MODIFIED POLYSTYRENE. [J]. Acta Polymerica Sinica (1):93-97(2005)
DOI：

WANG Xuejiang, ZHANG Quanxing, ZHAO Jianfu, XIA Siqing, CHEN Ling. ADSORPTION OF PHENOLIC ACIDS ON A NEW TYPE OF AMINO MODIFIED POLYSTYRENE. [J]. Acta Polymerica Sinica (1):93-97(2005) DOI：

摘要

通过对XAD-4聚苯乙烯树脂的氨基修饰制备了一种亲水性的NDA-100树脂 .研究了NDA-100树脂对苯酚和对羟基苯甲酸等酚酸类物质的吸附动力学和热力学行为.结果表明

NDA-100树脂对苯酚和对羟基苯甲酸具有良好的吸附性能

在研究的浓度范围内

吸附平衡数据符合Langmuir和Freundlich等温吸附方程

吸附为放热的物理吸附过程 .吸附动力学符合Lagergren准二级速率方程

颗粒内扩散为吸附速率的主要控制步骤.

Abstract

Ambedite XAD-4 polymeric resin was chemically modified with an amino group

which enables the resin (NDA-100) to be used directly without a wetting process．The adsorption thermodynamic and kinetic behaviors of phenol and p-hyamxybenzoic acid on NDA-100 were studied．A batch sorption experiments showed that NDA一100 resin had high sorption capacities for both phenolic acids Equilibrium adsorption data fitted to both Langmuir and Freundlich isotherms in the studied concentration range．Adsorption was exothermic and basically of physical character．Kinetic analysis showed that the adsorption reaction could be approximated by a Lagergren pseudo-second-order-rate equation for which intraparticle diffusion was the essential rate-controlling step．

关键词

吸附树脂苯酚对羟基苯甲酸

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Technical Institute of Physics and Chemistry, Chinese Academy of Sciences

Zhong Ke San Huan Research

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