| 氨基修饰聚苯乙烯树脂对酚酸物质的吸附性能 |
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| 引用本文： | 王学江,张全兴,赵建夫,夏四清,陈玲.氨基修饰聚苯乙烯树脂对酚酸物质的吸附性能[J].高分子学报,2005(1):93-97. |
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| 作者姓名： | 王学江 张全兴 赵建夫 夏四清 陈玲 |
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| 作者单位： | 同济大学环境学院,污染控制与资源化研究国家重点实验室,上海,200092;南京大学环境学院,南京,210093 |
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| 基金项目： | 国家“863计划”项目(项目号2002AA601320)，中国博士后科学基金(基金号2003034273)，污染控制与资源化研究国家重点实验室开放课题资助项目(项目号PCRRF04008) |
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| 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 10 0树脂 .研究了NDA 10 0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 10 0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 .
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| 关 键 词： | 吸附 树脂 苯酚 对羟基苯甲酸 |
| 修稿时间： | 2003年11月25 |
ADSORPTION OF PHENOLIC ACIDS ON A NEW TYPE OF AMINO MODIFIED POLYSTYRENE |
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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,2005(1):93-97. |
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| Authors: | WANG Xuejiang ZHANG Quanxing ZHAO Jianfu Xia Siqing CHEN Ling |
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| Institution: | WANG Xuejiang1,ZHANG Quanxing2,ZHAO Jianfu1,XIA Siqing1,CHEN Ling1 |
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| Abstract: | Amberlite 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-hydroxybenzoic acid on NDA-100 were studied.A batch sorption experiments showed that NDA-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. |
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| Keywords: | Adsorption Resin Phenol p-Hydroxybenzoic acid |
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