李书宁,何德富,陈瑞鹏,苗雨阳,高志贤,刘继锋.基于氨基化二氧化硅微球表面印迹聚合物高效去除水中氯霉素的研究[J].食品安全质量检测学报,2022,13(9):2840-2847
基于氨基化二氧化硅微球表面印迹聚合物高效去除水中氯霉素的研究
Study on the efficient removal of chloramphenicol from water based on surface-imprinted polymer on aminated silica microspheres
投稿时间:2022-02-15  修订日期:2022-03-22
DOI:
中文关键词:  表面分子印迹技术  氯霉素  氨基化二氧化硅
英文关键词:surface molecularly imprinting technique  chloramphenicol  aminated silica
基金项目:国家自然科学基金项目(19SWQ21)
作者单位
李书宁 天津科技大学省部共建食品营养与安全国家重点实验室;军事科学院军事医学研究院环境医学与作业医学研究所, 天津市环境与食品安全风险监控技术重点实验室 
何德富 军事科学院军事医学研究院环境医学与作业医学研究所, 天津市环境与食品安全风险监控技术重点实验室;吉林农业大学食品科学与工程学院 
陈瑞鹏 天津科技大学省部共建食品营养与安全国家重点实验室;军事科学院军事医学研究院环境医学与作业医学研究所, 天津市环境与食品安全风险监控技术重点实验室 
苗雨阳 军事科学院军事医学研究院环境医学与作业医学研究所, 天津市环境与食品安全风险监控技术重点实验室 
高志贤 军事科学院军事医学研究院环境医学与作业医学研究所, 天津市环境与食品安全风险监控技术重点实验室 
刘继锋 天津科技大学省部共建食品营养与安全国家重点实验室 
AuthorInstitution
LI Shu-Ning State Key Laboratory of Food Nutritionand Safety, Tianjin University of Science & Technology;Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Institute of Environmental and Operational Medicine, Academy of Military Medical Science, Academy of Military Science 
HE De-Fu Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Institute of Environmental and Operational Medicine, Academy of Military Medical Science, Academy of Military Science;College of Food Science and Engineering, Jilin Agricultural University 
CHEN Rui-Peng State Key Laboratory of Food Nutritionand Safety, Tianjin University of Science & Technology;Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Institute of Environmental and Operational Medicine, Academy of Military Medical Science, Academy of Military Science 
MIAO Yu-Yang Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Institute of Environmental and Operational Medicine, Academy of Military Medical Science, Academy of Military Science 
GAO Zhi-Xian Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Institute of Environmental and Operational Medicine, Academy of Military Medical Science, Academy of Military Science 
LIU Ji-Feng State Key Laboratory of Food Nutritionand Safety, Tianjin University of Science & Technology 
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中文摘要:
      目的 制备可特异性识别氯霉素(chloramphenicol, CAP)的吸附剂, 并对实际水样中的氯霉素进行快速吸附去除。方法 基于表面分子印迹技术(surface molecularly imprinting technique, SMIT), 以氨基化二氧化硅(SiO2-NH2)微球为载体, α-甲基丙烯酸(α-methacrylic acid, α-MAA)为功能单体, 乙二醇二甲基丙烯酸酯(ethylene glycol dimethacrylate, EGDMA)为交联剂制备核壳结构的氯霉素分子印迹聚合物微球。采用计算机模拟分析氯霉素与功能单体之间的相互作用筛选合适的单体, 确定模板分子和功能单体的比例, 并考查吸附剂的形貌特征、吸附性能和稳定性。结果 模板分子和功能单体的比例为1:4, 制备的吸附剂SiO2-NH2@MIP吸附容量为65.36 mg/g, 吸附行为符合Langmuir吸附等温线模型和准二级动力学模型, 为单层化学吸附。经过5次吸附循环后, 对CAP的去除率仍在94%以上。结论 本研究制备的聚合物吸附去除氯霉素效果好、成本低、可重复利用, 在水净化方面具有良好的应用前景。
英文摘要:
      Objective To prepare an adsorbent that can specifically recognize chloramphenicol (CAP) and rapidly remove chloramphenicol from real water samples. Methods In this study, chloramphenicol (CAP) molecularly imprinted polymer microspheres with core-shell structure were prepared by surface molecularly imprinting technique (SMIT) using amino silica (SiO2-NH2) microspheres as carrier, α-methacrylic acid (α-MAA) as the functional monomer and ethylene glycol dimethacrylate (EGDMA) as the cross-linking agent. The computer simulation was used to analyze the interaction between chloramphenicol and functional monomers to screen suitable monomer, and determine the ratio of template molecule and functional monomer, the morphology, adsorption properties and stability of the adsorbent were investigated. Results The ratio of template molecule and functional monomer were finally determined to be 1:4, the adsorption capacity of the prepared adsorbent SiO2-NH2@MIP was 65.36 mg/g, and the adsorption behavior conformed to the Langmuir adsorption isotherm model and pseudo-second-order kinetic model, indicating that it was monolayer chemisorption. After 5 adsorption cycles, the removal rate of CAP was still above 94%. Conclusion The prepared polymer has good adsorption effect on chloramphenicol, low cost and reusability, and has a good application prospect in water treatment.
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