高等学校化学学报 ›› 2013, Vol. 34 ›› Issue (6): 1353-1359.doi: 10.7503/cjcu20120960

• 分析化学 • 上一篇    下一篇

氧化石墨烯表面新型磁性四溴双酚A印迹复合材料的制备及吸附性能

饶维1,2, 蔡蓉1, 陈星1, 刘玉楠1, 陈红军1, 张朝晖1,2,3, 聂利华3   

  1. 1. 吉首大学林产化学工程湖南省重点实验室, 张家界 427000;
    2. 吉首大学化学化工学院, 吉首 416000;
    3. 湖南大学化学生物传感与计量国家重点实验室, 长沙 410082
  • 收稿日期:2012-10-25 出版日期:2013-06-10 发布日期:2013-01-07
  • 通讯作者: 张朝晖,男,博士,副教授,主要从事样品前处理与色谱分析研究.E-mail:zhaohuizhang77@163.com E-mail:zhaohuizhang77@163.com
  • 基金资助:

    国家自然科学基金(批准号: 21005030, 21267010)、 环境化学与生态毒理学国家重点实验室开放基金(批准号: KF2011-25)、 湖南省重点学科建设工程项目(批准号: JSU0713Z31)和湖南省高校"林产资源化学与林化产品开发"科技创新团队支持计划资助.

Preparation and Adsorption Properties of Novel Magnetic Tetrabromobisphenol A Molecularly Imprinted Composite Material Based on Graphene Oxide Surface

RAO Wei1,2, CAI Rong1, CHEN Xing1, LIU Yu-Nan1, CHEN Hong-Jun1, ZHANG Zhao-Hui1,2,3, NIE Li-Hua3   

  1. 1. Key Laboratory of Hunan Forest Products and Chemical Industry Engineering, Jishou University, Zhangjiajie 427000, China;
    2. College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China;
    3. State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China
  • Received:2012-10-25 Online:2013-06-10 Published:2013-01-07

摘要:

以二氧化硅包覆的磁性氧化石墨烯为载体, 利用热聚合方法制备了对四溴双酚A(TBBPA)有特异吸附效果的新型磁性印迹复合材料. 采用透射电子显微镜(TEM)、 扫描电子显微镜(SEM)、 傅里叶变换红外光谱(FTIR)、 热重分析(TGA)和样品振动磁强计(VSM)对该印迹复合材料进行了表征. 结果表明, 在氧化石墨烯表面制备了一层厚度为55~65 nm、 热稳定良好的磁性印迹层. 结合磁固相萃取技术(M-SPE)和高效液相色谱(HPLC)检测技术研究了该磁性印迹复合材料对四溴双酚A的吸附行为, 结果表明该印迹复合材料对四溴双酚A具有良好的选择吸附能力, 最大吸附量为16.33 mg/g. 结合HPLC检测技术, 该印迹复合材料可用于分离富集饮用水中的四溴双酚A.

关键词: 分子印迹, 氧化石墨烯, 四溴双酚A, 磁固相萃取

Abstract:

A novel magnetic molecularly imprinted polymer(Fe3O4@GO@MIP) based on magnetic graphene coated with silicon dioxide layer was synthesized using heated polymerization technique. The MIP was characterized by transmission electron microscopy(TEM), scanning electron microscopy(SEM), Fourier transform infrared spectroscopy(FTIR), thermogravimetric analysis(TGA) and vibrating sample magnetometer(VSM). The results showed that a thermal stability magnetic imprinted layer with the thickness of 55-65 nm was coated steadily on the graphene oxide surface. Adsorption performance of the Fe3O4@GO@MIP was investigated combined with magnetic solid phase extraction(M-SPE) and high-performance liquid chromatography(HPLC) technology, and the results indicated the Fe3O4@GO@MIP possessed higher selectivity towards tetrabromobisphenol A with the maximum adsorption capacity of 16.33 mg/g. The magnetic molecularly imprinted composite material was applied to separation and enrichment of tetrabromobisphenol A in environmental water samples combined with HPLC technology.

Key words: Molecularly imprinted, Graphene oxide, Tetrabromobisphenol A, Magnetic solid phase extraction

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