Abstract
A magnetic, core–shell structured pH-responsive molecularly imprinted polymer was prepared by surface imprinting technique and free radical polymerization for selective extraction of sulfamethoxazole. The imprinted polymer shell was prepared using 2-(Dimethylamino) ethyl methacrylate as pH-sensitive monomer, a certain amount of 4-vinylphenylbronic acid and methacrylic acid as common monomer to increase selectivity, sulfamethoxazole as template molecules. Excellent adsorption capacity (39.06 mg g−1) and selectivity (IF = 2.19) were achieved and the capture/release process can be regulated by pH value. In addition, it has been successfully applied to the detection of sulfamethoxazole in water samples and the recovery rate reached 96.2%. This study provides a new method and idea for the selective separation and detection of sulfamethoxazole in actual samples.
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Acknowledgements
This work was financially supported by the National Natural Science Foundation of China (No. 21677064), Science and Technology Planning Social Development Project of Jiangsu Province (No. BE2018694), Science and Technology Planning Social Development Project of Zhenjiang City (No.SH2019013) and Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment.
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Huang, W., Si, H., Qing, Y. et al. A Magnetic, Core–Shell Structured, pH-Responsive Molecularly Imprinted Polymers for the Selective Detection of Sulfamethoxazole. J Inorg Organomet Polym 31, 2054–2062 (2021). https://doi.org/10.1007/s10904-021-01893-7
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DOI: https://doi.org/10.1007/s10904-021-01893-7