| Fe3O4@Au核-壳纳米复合材料的制备及对农药福美双的SERS检测研究 |
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| 引用本文： | 韩东来,李博珣,杨硕,闫永胜,杨丽丽,刘洋,李春香. Fe3O4@Au核-壳纳米复合材料的制备及对农药福美双的SERS检测研究[J]. 高等学校化学学报, 2019, 40(10): 2067. DOI: 10.7503/cjcu20190183 |
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| 作者姓名： | 韩东来 李博珣 杨硕 闫永胜 杨丽丽 刘洋 李春香 |
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| 作者单位： | 江苏大学绿色化学与化工技术研究院,镇江212013;长春理工大学材料科学与工程学院,长春130022;长春理工大学材料科学与工程学院,长春,130022;江苏大学绿色化学与化工技术研究院,镇江212013;长春光学精密机械与物理研究所,长春130033;江苏大学绿色化学与化工技术研究院,镇江,212013;江苏大学绿色化学与化工技术研究院,镇江212013;吉林师范大学功能材料物理与化学实验室,四平136000;吉林师范大学功能材料物理与化学实验室,四平,136000 |
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| 基金项目： | 国家自然科学基金(Nos.21676115);国家自然科学基金(Nos.61705020);中国博士后科学基金(No.2017M621645);江苏省博士后基金(Nos.1701103B);江苏省博士后基金(Nos.1701106B);江苏省自然科学基金(No.BK20180880) |
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| 摘 要： | 首先采用热分解法制备了Fe3O4纳米材料, 再将其作为磁性核, 分别采用种子沉积法和种子介导生长法制备了Fe3O4-Au核-卫星纳米复合材料和Fe3O4@Au核-壳纳米复合材料, 并对其形貌和性能进行了表征分析. 结果表明, 所制备的Fe3O4-Au核-卫星和Fe3O4@Au核-壳纳米复合材料粒径均匀, Au纳米颗粒均匀沉积/包覆在Fe3O4纳米材料表面, 且样品均具有良好的磁响应性. 使用4-氨基苯硫酚(4-ATP)作为拉曼探针分子, 对比了这两种纳米复合材料作为SERS基底时的拉曼信号增强效果. 结果显示, Fe3O4@Au核-壳纳米复合材料是更优秀的SERS基底, 且该SERS基底具有良好的信号再现性. 最后, 使用Fe3O4@Au核-壳纳米复合材料作为SERS基底, 成功地在苹果皮上检测出残留福美双的SERS信号.
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| 关 键 词： | 四氧化三铁 金 核-壳纳米复合材料 表面增强拉曼光谱(SERS) 福美双 |
| 收稿时间： | 2019-03-27 |
Facile Synthesis of Fe3O4@Au Core-shell Nanocomposites as an SERS Substrate for the Detection of Thiram |
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| HAN Donglai,LI Boxun,YANG Shuo,YAN Yongsheng,YANG Lili,LIU Yang,LI Chunxiang. Facile Synthesis of Fe3O4@Au Core-shell Nanocomposites as an SERS Substrate for the Detection of Thiram [J]. Chemical Research In Chinese Universities, 2019, 40(10): 2067. DOI: 10.7503/cjcu20190183 |
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| Authors: | HAN Donglai LI Boxun YANG Shuo YAN Yongsheng YANG Lili LIU Yang LI Chunxiang |
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| Affiliation: | 1. School of Chemistry & Chemical Engineering, Jiangsu University, Zhenjiang 212013, China;2. School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, China;3. Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China;4. Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Siping 136000, China |
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| Abstract: | Fe3O4 nanomaterial was prepared by thermal decomposition method, and then Fe3O4-Au core-satellite nanocomposites and Fe3O4@Au core-shell nanocomposites were prepared by seed deposition method and seed-mediated growth method, respectively. The morphology of the Fe3O4-Au core-satellite nanocompo-sites and Fe3O4@Au core-shell nanocomposites were uniform and the Au nanoparticles were uniformly deposited/coated on the surface of Fe3O4 nanomaterials. The samples had good magnetic responsiveness. Using 4-aminothiophenol(4-ATP) as Raman probe molecule, the Raman signal enhancement effect of the two nanocomposites as SERS substrates was compared. The results showed that the Fe3O4@Au core-shell nanocompo-site was a better SERS substrate, and had good signal reproducibility. Finally, using Fe3O4@Au core-shell nanocomposite as SERS substrate, the SERS signal of the residual thiram was detected on the apple peel successfully. |
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| Keywords: | Fe3O4 Au Core-shell nanocomposites Surface enhanced Raman scattering(SERS) Thriam |
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