Crosslinking polymer based on amino chitosan for the adsorption of phenoxycarboxylic acids: Kinetics, isotherm, and thermodynamics
文献类型：期刊论文
| 作者 | Li, Qing4; Zhu, Siyu1; Yin, Ruining3; Ma, Xuanxuan3; Li, Guanghui2; Yi, Yuetao4; Dong, Fang4 |
| 刊名 | INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
 |
| 出版日期 | 2025-09-01 |
| 卷号 | 323页码:13 |
| 关键词 | Adsorption Chitosan Phenoxycarboxylic acids |
| ISSN号 | 0141-8130 |
| DOI | 10.1016/j.ijbiomac.2025.147040 |
| 通讯作者 | Li, Qing(cafeapril@hotmail.com) ; Dong, Fang(fdong@yic.ac.cn) |
| 英文摘要 | In this work, new crosslinking polymer adsorbents were synthesized based on amino chitosan. Crosslinked amino chitosan (CNCS) was characterized by porous structure, high specific surface area (23.49 m2/g), and multiple amino groups. The multiple amino groups can bring more positive charge and make the crosslinking reaction more efficient. CNCS exhibited a superior adsorption capacity for phenoxycarboxylic acids to other crosslinked chitosan adsorbents and enable rapid adsorption of phenoxycarboxylic acids. The maximum adsorption capacity for 2-(2,4-dichlorophenoxy)propionic acid (2,4-DP) of 374 mg/g and 2,4-dichlorophenoxyacetic acid (2,4-D) of 309 mg/g was achieved (adsorbent dosage: 500 mg/L, pH: 3). The adsorption isotherm of 2,4-D could be represented by Freundlich model due to the high R2 (0.975-0.999). Adsorption kinetics could be better represented by the pseudo-second order model. CNCS also showed good reusability for adsorbing 2,4-D, with removal efficiency remaining above 94 % even after the fifth cycle. The study also discussed the thermodynamics and adsorption mechanism of 2,4-D onto CNCS. In addition, CNCS can remove 86.3 % of 2-chlorophenoxyacetic acid (2-CPA), 95.3 % of 4-CPA, 96 % of 2,4-D, and 95.1 % of 2,4-DP from solution containing multiple phenoxycarboxylic acids, and the adsorption efficiency could reached to 94.4 % (adsorbent dosage: 1000 mg/L). |
| WOS关键词 | 2,4-DICHLOROPHENOXYACETIC ACID ; LINKED CHITOSAN ; METHYL-ORANGE ; COMPOSITE ; MECHANISM ; REMOVAL ; CARBON ; DYE |
| WOS研究方向 | Biochemistry & Molecular Biology ; Chemistry ; Polymer Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001564149700001 |
| 资助机构 | Natural Science Foundation of Shandong Province ; Youth Innovation Team Project for Universities of Shandong Province ; Post-doctoral Innovation Program of Shandong Province ; Development of Aquaculture Regulators for Aquatic Products |
| 源URL | [http://ir.yic.ac.cn/handle/133337/40811]  |
| 专题 | 海岸带生物学与生物资源利用重点实验室 |
| 通讯作者 | Li, Qing; Dong, Fang |
| 作者单位 | 1.Harbin Inst Technol Weihai, Sch Marine Sci & Technol, Weihai 264209, Peoples R China 2.Shandong Kaisheng New Mat Co Ltd, Zibo 255185, Peoples R China 3.Ludong Univ, Sch Resources & Environm Engn, Yantai 264025, Shandong, Peoples R China 4.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Biol & Bioresource Utilizat, Yantai 264003, Shandong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Qing,Zhu, Siyu,Yin, Ruining,et al. Crosslinking polymer based on amino chitosan for the adsorption of phenoxycarboxylic acids: Kinetics, isotherm, and thermodynamics[J]. INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES,2025,323:13. |
| APA | Li, Qing.,Zhu, Siyu.,Yin, Ruining.,Ma, Xuanxuan.,Li, Guanghui.,...&Dong, Fang.(2025).Crosslinking polymer based on amino chitosan for the adsorption of phenoxycarboxylic acids: Kinetics, isotherm, and thermodynamics.INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES,323,13. |
| MLA | Li, Qing,et al."Crosslinking polymer based on amino chitosan for the adsorption of phenoxycarboxylic acids: Kinetics, isotherm, and thermodynamics".INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES 323(2025):13. |
入库方式： OAI收割
来源：烟台海岸带研究所
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