Preparation of silver nanosheet-assembled film as a surface-enhanced Raman scattering substrate

IF 3.6 3区 化学 Q2 CHEMISTRY, ANALYTICAL Reviews in Analytical Chemistry Pub Date : 2022-01-01 DOI:10.1515/revac-2022-0047
Yuhai Wang, Chunxu Wang, Yongling Zhang, Jia Wang, Li Wang
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Abstract

Abstract In this work, we demonstrate a simple method for the fabrication of silver (Ag) nanosheet-assembled film on aluminum (Al) foil based on the galvanic displacement reaction between Al and Ag+. In order to obtain Ag nanosheets with large area and high aggregation density, both F− and H+ ions were introduced into the reaction system to etch the barrier layer Al2O3 on Al foils and promote the increase of the number of Ag nuclei. Therefore, Ag nuclei grew into nanosheets with citrate ions as the shape control agent. By varying the reaction parameters, Ag nanosheet film was optimized for surface-enhanced Raman scattering (SERS) measurements. The Ag nanosheet film prepared by the presented method exhibit the advantages of controllable morphology, good SERS activity, and distribution in large area, which could be utilized as a promising SERS-active candidate substrate for analytical applications.
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银纳米片组装膜作为表面增强拉曼散射衬底的制备
摘要:本文介绍了一种在铝(Al)箔上制备银(Ag)纳米片组装膜的简单方法,该方法基于Al和Ag+之间的电位移反应。为了得到面积大、聚集密度高的银纳米片,在反应体系中引入F−和H+离子,在Al箔上蚀刻阻挡层Al2O3,促进银核数量的增加。因此,银核生长成纳米片,柠檬酸盐离子作为形状控制剂。通过改变反应参数,优化了银纳米片薄膜的表面增强拉曼散射(SERS)测量。该方法制备的银纳米片薄膜具有形貌可控、SERS活性好、分布面积大等优点,可作为一种具有SERS活性的候选底物用于分析。
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来源期刊
Reviews in Analytical Chemistry
Reviews in Analytical Chemistry 化学-分析化学
CiteScore
7.50
自引率
0.00%
发文量
15
审稿时长
>12 weeks
期刊介绍: Reviews in Analytical Chemistry publishes authoritative reviews by leading experts in the dynamic field of chemical analysis. The subjects can encompass all branches of modern analytical chemistry such as spectroscopy, chromatography, mass spectrometry, electrochemistry and trace analysis and their applications to areas such as environmental control, pharmaceutical industry, automation and other relevant areas. Review articles bring the expert up to date in a concise manner and provide researchers an overview of new techniques and methods.
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