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[1]杨雯雯,聂文善,蒋祖燕,等.碘介导金包银核壳纳米粒子的合成及SERS应用[J].武汉工程大学学报,2017,39(01):31-38.[doi:10. 3969/j. issn. 1674?2869. 2017. 01. 006]
 YANG Wenwen,NIE Wenshan,JIANG Zuyan,et al.Fabrication of Silver@Gold Core-Shell NPs and Application as Functional SERS Substrate[J].Journal of Wuhan Institute of Technology,2017,39(01):31-38.[doi:10. 3969/j. issn. 1674?2869. 2017. 01. 006]
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碘介导金包银核壳纳米粒子的合成及SERS应用(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
39
期数:
2017年01期
页码:
31-38
栏目:
材料科学与工程
出版日期:
2017-03-29

文章信息/Info

Title:
Fabrication of Silver@Gold Core-Shell NPs and Application as Functional SERS Substrate
作者:
杨雯雯1聂文善1蒋祖燕2欧阳磊2唐和清1*
1. 中南民族大学资源与环境学院,湖北 武汉 430074;2. 华中科技大学化学与化工学院,湖北 武汉 430074
Author(s):
YANG Wenwen1 NIE Wenshan1 JIANG Zuyan2 OUYANG Lei 2 TANG Heqing1*
1. College of Resources and Environmental Science, South-Central University for Nationalities, Wuhan 430074, China; 2. School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
关键词:
金包银核壳粒子表面增强拉曼光谱抗氧化合成色素农药
Keywords:
silver-gold core-shell nanoparticles iodine surface-enhanced Raman spectroscopy oxidation resistance synthetic pigment pesticide
分类号:
O657.61
DOI:
10. 3969/j. issn. 1674?2869. 2017. 01. 006
文献标志码:
A
摘要:
金包银核壳纳米粒子有望在保持纳米银优良表面增强拉曼(SERS)增强性能的同时,提高银纳米粒子的抗氧化能力;但是目前制备完整纳米金壳包裹的纳米银粒子仍较困难. 以AuI4-代替传统使用的AuCl4-,利用碘与金、银原子的相互作用,避免了金与纳米银核的电化学置换反应而导致的结构缺陷,制备得到了完整均匀包裹的金包银核壳粒子(Ag@Au NPs). 该粒子不仅具有与银类似的SERS增强效果,同时具有可以与纳米金相比拟的抗氧化性能. 将上述方法得到的金包银核壳粒子成功地应用于玫瑰红B、亮蓝等合成色素以及农药百草枯的测定.
Abstract:
Fabrication of silver-gold (Ag@Au) core-shell nanoparticles (NPs) is a good strategy to obtain bi-functional NPs with both excellent Surface-enhanced Raman spectroscopy (SERS) performance and good oxidation resistance. But until now, it is rather difficult to fabricate NPs with entire Au shell covered on Ag core. Here AuI4- was used instead of common used AuCl4-, and the special interaction between iodine and Ag/Au atoms was applied to inhibit the replace reaction between Ag and Au, which would lead to structure defect, thus Ag@Au core-shell NPs with uniform Au shell coating were obtained. The Ag@Au NPs showed good SERS enhancement (similar to Ag NPs) and also excellent anti-oxidation performance (comparable to Au NPs). Such NPs were successfully applied into the trace SERS detection of synthetic pigment (Rhodamine B and Acid Blue) and pesticide paraquat in real samples, and satisfactory results were obtained.

参考文献/References:

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更新日期/Last Update: 2017-02-22