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首页> 外文期刊>Journal of industrial and engineering chemistry >Silver nanoplate-pillared mesoporous nano-clays for surface enhanced raman scattering
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Silver nanoplate-pillared mesoporous nano-clays for surface enhanced raman scattering

机译：银纳米柱 - 柱淀粉介孔纳米粘土用于表面增强拉曼散射

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摘要

Due to characteristic properties of silver (Ag), Ag nanoparticles have attracted unprecedented attention in various scientific fields such as sensors, catalysts, antibacterial materials, and so on. To obtain tailor-made functionalities of Ag nanoparticles with desired physicochemical properties, proper fabrication process is needed to control their sizes, morphologies or arrangements by hybridization with different components, immobilization on solid struts, and etc. Herein, we suggest a facile synthetic route to obtain Ag-pillared mesoporous nanoclays through simultaneous crystal growth and arrangement of Ag nanoplates with the help of a 2-dimensional inorganic template. To obtain Ag-pillars, layered silver-thiolate self-assembly was exfoliated to monolayers (Ag precursor) and then in-situ hybridized with layered double hydroxide in a layer-by-layer manner. Through reductive calcination, silver thiolate transformed to Ag-pillars which grew in nanoplate morphology with well-arrangement in confined space of nanoclays. Crystal structure, morphology, and pore structure of Ag-pillars in nanoclays were systematically characterized. Surface enhanced Raman scattering effect of arranged Ag-pillars on metal oxide substrate obtained upon calcination was also investigated with rhodamine 6G. (C) 2020 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
机译：由于银（Ag）的特征性，Ag纳米粒子在各种科学领域中引起了前所未有的关注，例如传感器，催化剂，抗菌材料等。为了获得具有所需物理化学性质的Ag纳米颗粒的量定制官能团，需要采用不同组分的杂交，固定在固体支柱上的固定化等的适当的制造过程来控制它们的尺寸，形态或布置，等等，我们建议了一个容易的合成路线通过同时晶体生长和Ag纳米载体的帮助，通过二维无机模板获得Ag柱状介孔纳米粘土。为了获得Ag柱，将层状银 - 硫醇酸盐自组装剥离到单层（Ag前体）中，然后用层逐个方式用层状双氢氧化物与原位杂交。通过还原煅烧，银硫醇酯转化为Ag-Pillars，其纳米粘土内狭窄的空间中成长为纳米板形态。系统地表征了纳米粘土中Ag柱的晶体结构，形态和孔隙结构。还研究了罗丹明6G的煅烧后获得的布置Ag柱的表面增强拉曼散射效果。 （c）2020朝鲜工业与工程化学学会。 elsevier b.v出版。保留所有权利。

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