Adsorption Characteristics of Fumaric Acid onto Weakly Basic Hypercrosslinked Polystyrene Ion-Exchangers
A new weakly basic ion-exchanger (called XC-11), with a hypercrosslinked macroporous polystyrene matrix and a high specific surface area, was synthesized. When traditional weakly basic ion-exchange resins were employed in adsorption experiments, it was found that their sphericity after attrition dec...
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SAGE Publishing
2006-02-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1260/026361706778062559 |
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| author | Chao Xu Chao Long Aimin Li Fuqiang Liu Weiben Yang Quanxing Zhang |
| author_facet | Chao Xu Chao Long Aimin Li Fuqiang Liu Weiben Yang Quanxing Zhang |
| author_sort | Chao Xu |
| collection | DOAJ |
| description | A new weakly basic ion-exchanger (called XC-11), with a hypercrosslinked macroporous polystyrene matrix and a high specific surface area, was synthesized. When traditional weakly basic ion-exchange resins were employed in adsorption experiments, it was found that their sphericity after attrition decreased drastically when they were used ten times cyclically to adsorb and desorb fumaric acid from actual manufacturing effluent. This indicated that a traditional weakly basic exchange resin could not be applied in practice for the recovery of fumaric acid from industrial wastewater. However, the mechanical strengths of the self-synthesized new weakly basic ion-exchanger XC-11 and the hypercrosslinked polymeric adsorbent NDA-150 remained virtually unchanged under the same conditions, indicating their feasibility for practical applications. Thus, the adsorption of fumaric acid from aqueous solutions onto XC-11 and the commercially available hypercrosslinked polymeric adsorbent (NDA-150) taken as a reference was investigated from both a dynamic and thermodynamic standpoint. Favourable adsorption behaviour towards fumaric acid was observed with both adsorbents, the equilibrium adsorption data obtained being very well fitted by the Freundlich model. The corresponding Freundlich constants, K F , and free energy changes, ΔG, indicated that the adsorption capacity of XC-11 towards fumaric acid was greater than that of NDA-150. The pseudo-first-order and pseudo-second-order kinetic models were applied to describe the kinetic data, with the pseudo-second-order model providing a perfect fit. It was also found that the adsorption of fumaric acid onto XC-11 proceeded faster than the corresponding process onto NDA-150. |
| format | Article |
| id | doaj-art-e1fef15585374240a0fe3b48ba48ae7e |
| institution | DOAJ |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 2006-02-01 |
| publisher | SAGE Publishing |
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| series | Adsorption Science & Technology |
| spelling | doaj-art-e1fef15585374240a0fe3b48ba48ae7e2025-08-20T02:43:26ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382006-02-012410.1260/026361706778062559Adsorption Characteristics of Fumaric Acid onto Weakly Basic Hypercrosslinked Polystyrene Ion-ExchangersChao Xu0Chao Long1Aimin Li2Fuqiang Liu3Weiben Yang4Quanxing Zhang5 State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093, P. R. China Engineering Technology Research Center of Organic Toxic Substance Control and Resource Reuse of Jiangsu Province, Nanjing 210038, P. R. China Engineering Technology Research Center of Organic Toxic Substance Control and Resource Reuse of Jiangsu Province, Nanjing 210038, P. R. China Engineering Technology Research Center of Organic Toxic Substance Control and Resource Reuse of Jiangsu Province, Nanjing 210038, P. R. China State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093, P. R. China Engineering Technology Research Center of Organic Toxic Substance Control and Resource Reuse of Jiangsu Province, Nanjing 210038, P. R. ChinaA new weakly basic ion-exchanger (called XC-11), with a hypercrosslinked macroporous polystyrene matrix and a high specific surface area, was synthesized. When traditional weakly basic ion-exchange resins were employed in adsorption experiments, it was found that their sphericity after attrition decreased drastically when they were used ten times cyclically to adsorb and desorb fumaric acid from actual manufacturing effluent. This indicated that a traditional weakly basic exchange resin could not be applied in practice for the recovery of fumaric acid from industrial wastewater. However, the mechanical strengths of the self-synthesized new weakly basic ion-exchanger XC-11 and the hypercrosslinked polymeric adsorbent NDA-150 remained virtually unchanged under the same conditions, indicating their feasibility for practical applications. Thus, the adsorption of fumaric acid from aqueous solutions onto XC-11 and the commercially available hypercrosslinked polymeric adsorbent (NDA-150) taken as a reference was investigated from both a dynamic and thermodynamic standpoint. Favourable adsorption behaviour towards fumaric acid was observed with both adsorbents, the equilibrium adsorption data obtained being very well fitted by the Freundlich model. The corresponding Freundlich constants, K F , and free energy changes, ΔG, indicated that the adsorption capacity of XC-11 towards fumaric acid was greater than that of NDA-150. The pseudo-first-order and pseudo-second-order kinetic models were applied to describe the kinetic data, with the pseudo-second-order model providing a perfect fit. It was also found that the adsorption of fumaric acid onto XC-11 proceeded faster than the corresponding process onto NDA-150.https://doi.org/10.1260/026361706778062559 |
| spellingShingle | Chao Xu Chao Long Aimin Li Fuqiang Liu Weiben Yang Quanxing Zhang Adsorption Characteristics of Fumaric Acid onto Weakly Basic Hypercrosslinked Polystyrene Ion-Exchangers Adsorption Science & Technology |
| title | Adsorption Characteristics of Fumaric Acid onto Weakly Basic Hypercrosslinked Polystyrene Ion-Exchangers |
| title_full | Adsorption Characteristics of Fumaric Acid onto Weakly Basic Hypercrosslinked Polystyrene Ion-Exchangers |
| title_fullStr | Adsorption Characteristics of Fumaric Acid onto Weakly Basic Hypercrosslinked Polystyrene Ion-Exchangers |
| title_full_unstemmed | Adsorption Characteristics of Fumaric Acid onto Weakly Basic Hypercrosslinked Polystyrene Ion-Exchangers |
| title_short | Adsorption Characteristics of Fumaric Acid onto Weakly Basic Hypercrosslinked Polystyrene Ion-Exchangers |
| title_sort | adsorption characteristics of fumaric acid onto weakly basic hypercrosslinked polystyrene ion exchangers |
| url | https://doi.org/10.1260/026361706778062559 |
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