| 二步电沉积法制备Au/氧化石墨烯复合薄膜作为SERS基底 | |
| Two-Step Electrodeposition Process for Fabrication of Au-Graphene Oxide Hybrid Films as SERS Substrates | |
| 摘要: 采用二步电沉积方法在Ti片表面制备了Au-氧化石墨烯（Au-GO）复合薄膜，通过XRD、SEM、XPS等对薄膜的组成、结构和形貌进行了表征，并以罗丹明6G（R6G）为探针分子，对Au-GO/Ti基底的SERS活性进行了表征。结果显示，Au纳米颗粒尺寸约为60 nm，均匀、致密分布于GO表面，该基底显示出较高的SERS活性，对R6G分子的检测极限可达~10-10 mol·L-1，增强因子高达约106，且基底显示出良好的稳定性，在冰箱中存放90 d后，SERS活性仅降低30%左右。 | |
| 关键词: 金 氧化石墨烯 表面增强拉曼散射 复合薄膜 | |
| 基金项目: 上海市自然科学基金（No.13ZR1444200）及中央高校基本科研业务费专项基金资助项目。 | |
| Abstract: Two-step electrodeposition process was developed to prepare Au nanoparticle-graphene oxide (Au-GO) hybrid film as large-area surface-enhanced Raman scattering (SERS) substrates. The composition, microstructure and morphology of the resultant hybrid film were characterized by XRD, SEM and XPS. Meanwhile, SERS activity of the Au-GO/Ti substrates was also evaluated using rhodamine 6G (R6G) as probe molecules. The results showed that Au nanoparticles with an average size of~60 nm were uniformly deposited on the surface of GO. The substrates exhibited strong and uniform SERS response toward R6G with a detection limit of~10-10 mol·L-1 and an enhancement factor of~106. Furthermore, the Raman signal intensity of R6G only decreased to approximately 30% of its initial value after 90 days of storage, indicating the Au-GO/Ti substrate is highly stable and produces reliable SERS measurements | |
| Keywords: Au graphene oxide surface-enhanced Raman scattering hybrid film | |
| 投稿时间：2016-06-19 修订日期：2016-09-30 | |
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| 徐玲,姚爱华,胥岩,王德平.二步电沉积法制备Au/氧化石墨烯复合薄膜作为SERS基底[J].无机化学学报,2016,32(12):2183-2190. | |
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