Synthesis of multi-ion imprinted polymers based on dithizone chelation for simultaneous removal of Hg2+, Cd2+, Ni2+ and Cu2+ from aqueous solutions
文献类型：期刊论文
| 作者 | Fu, JQ; Wang, XY; Li, JH ; Ding, YJ; Chen, LX
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| 刊名 | RSC ADVANCES
 |
| 出版日期 | 2016 |
| 卷号 | 6期号:50页码:44087-44095 |
| ISSN号 | 2046-2069 |
| 通讯作者 | Chen, LX (reprint author), Qufu Normal Univ, Coll Chem & Chem Engn, Key Lab Life Organ Anal Shandong Prov, Qufu 273165, Peoples R China. ; Li, JH ; Chen, LX (reprint author), Chinese Acad Sci, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China. jhli@yic.ac.cn ; lxchen@yic.ac.cn |
| 产权排序 | [Fu, Junqing; Ding, Yangjun; Chen, Lingxin] Qufu Normal Univ, Coll Chem & Chem Engn, Key Lab Life Organ Anal Shandong Prov, Qufu 273165, Peoples R China; [Fu, Junqing; Wang, Xiaoyan; Li, Jinhua; Chen, Lingxin] Chinese Acad Sci, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China; [Wang, Xiaoyan] Binzhou Med Univ, Sch Pharm, Yantai 264003, Peoples R China |
| 英文摘要 | Simultaneous analysis and removal of various heavy metal ions has received increasing concerns because they are usually co-existent with different toxicological effects. Ion imprinted polymers (IIPs) can effectively identify water-soluble ions especially heavy metal ions, however, multi-ion imprinting is rarely performed owing to possible cross-reactivity and matrix interferences. In this work, a novel and generally applicable IIPs strategy was proposed for simultaneous preconcentration and removal of four heavy metal ions based on dithizone chelation. Multi-ion imprinted polymers (MIIPs) embedded in a sal-gel matrix were prepared by using Hg2+, Cd2+, Ni2+ and Cu2+ as templates and 3-aminopropyltriethoxysilane as a functional monomer, and the possible synergy mechanism was explored between dithizone coordination chemistry and multi -ion imprinting. The structures, morphologies and thermostability of MIIPs were well characterized by Fourier transform infrared (FT-IR), scanning electron microscopy (SEM), Brunauer-Emmett-Teller (BET) and thermogravimetry analysis (TGA). The resultant MIIPs showed high binding capacity and fast dynamics, and the adsorption processes obeyed Langmuir isotherm and pseudo -second -order dynamic models. The MIIPs displayed excellent selectivity toward the four target ions particularly over Pb2+, Zn2+ and Co2+ with selective coefficients of 6.8-16.9, as well as high anti interference ability when confronted with common co-present various ions. Moreover, a high preparation yield of 41% and good reusability over 90% desorption efficiency were obtained. Consequently, the MIIPs were used as solid -phase extraction sorbents for preconcentration of trace Hg2+, Cd2+, Ni2+ and Cu2+, presenting high detectability up to 6.0-22.5 ng L-1 and satisfactory recoveries ranging from 94.7-110.2% in seawater samples. The developed MIIPs-based method proved to be a practically feasible method in heavy metal removal and water pretreatment. |
| 研究领域[WOS] | Chemistry |
| 关键词[WOS] | SOLID-PHASE EXTRACTION ; WATER-PURIFICATION ; MESOPOROUS SILICA ; ADSORPTION ; SAMPLES ; PERFORMANCE ; CADMIUM ; SYNERGY ; IONS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000376119000031 |
| 源URL | [http://ir.yic.ac.cn/handle/133337/17072]  |
| 专题 | 烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室 |
| 作者单位 | 1.Qufu Normal Univ, Coll Chem & Chem Engn, Key Lab Life Organ Anal Shandong Prov 2.Chinese Acad Sci, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai Inst Coastal Zone Res 3.Binzhou Med Univ, Sch Pharm |
| 推荐引用方式 GB/T 7714 | Fu, JQ,Wang, XY,Li, JH,et al. Synthesis of multi-ion imprinted polymers based on dithizone chelation for simultaneous removal of Hg2+, Cd2+, Ni2+ and Cu2+ from aqueous solutions[J]. RSC ADVANCES,2016,6(50):44087-44095. |
| APA | Fu, JQ,Wang, XY,Li, JH,Ding, YJ,&Chen, LX.(2016).Synthesis of multi-ion imprinted polymers based on dithizone chelation for simultaneous removal of Hg2+, Cd2+, Ni2+ and Cu2+ from aqueous solutions.RSC ADVANCES,6(50),44087-44095. |
| MLA | Fu, JQ,et al."Synthesis of multi-ion imprinted polymers based on dithizone chelation for simultaneous removal of Hg2+, Cd2+, Ni2+ and Cu2+ from aqueous solutions".RSC ADVANCES 6.50(2016):44087-44095. |
入库方式： OAI收割
来源：烟台海岸带研究所
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