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Synthesis of multi-ion imprinted polymers based on dithizone chelation for simultaneous removal of Hg2+, Cd2+, Ni2+ and Cu2+ from aqueous solutions
Fu, JQ; Wang, XY; Li, JH; Ding, YJ; Chen, LX; Chen, LX (reprint author), Qufu Normal Univ, Coll Chem & Chem Engn, Key Lab Life Organ Anal Shandong Prov, Qufu 273165, Peoples R China.; 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
2016
Source PublicationRSC ADVANCES
ISSN2046-2069
Volume6Issue:50Pages:44087-44095
Contribution Rank[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
AbstractSimultaneous 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.
Department中科院海岸带环境过程与生态修复重点实验室
DOI10.1039/c6ra07785d
Funding OrganizationStrategic Priority Research Program of the Chinese Academy of Sciences(XDA11020702) ; National Natural Science Foundation of China(21275158 ; Project of on site sediment microbial remediation of public area of central Bohai Sea, North China Sea Branch of State Oceanic Administration(QDZC20150420-002) ; 21477160 ; 21575159)
Indexed BySCI
WOS KeywordSOLID-PHASE EXTRACTION ; WATER-PURIFICATION ; MESOPOROUS SILICA ; ADSORPTION ; SAMPLES ; PERFORMANCE ; CADMIUM ; SYNERGY ; IONS
SubtypeArticle
Language英语
WOS Research AreaChemistry
WOS IDWOS:000376119000031
Citation statistics
Cited Times:22[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/17072
Collection中科院海岸带环境过程与生态修复重点实验室
Corresponding AuthorLi, JH; Chen, LX (reprint author), Qufu Normal Univ, Coll Chem & Chem Engn, Key Lab Life Organ Anal Shandong Prov, Qufu 273165, Peoples R China.; 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
Affiliation1.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
Recommended Citation
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.,...&lxchen@yic.ac.cn.(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.
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