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Using Ag-embedded TiO2 nanotubes array as recyclable SERS substrate

机译：使用Ag嵌入的TiO2纳米管阵列作为可回收SERS衬底

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摘要

A simple strategy for synthesizing Ag-loaded TiO2 nanotube film for use as multifunctional photocatalyst and recyclable surface-enhanced Raman scattering (SERS) substrate is introduced. Highly aligned TiO2 nanotube arrays (TNTA) prepared via electrochemical anodization were used as a 3D rough host for silver nanoparticles. Ag deposits were sputtered in a vacuum, and it was found that their morphologies were mainly influenced by the diameters of nanotubes and the UV irradiation induced aging process, especially the self-migration of silver along the tubular wall. SERS and the self-cleaning effect were observed using Rhodamine 6G (R6G) as the probe molecule. The results showed that narrow nanotube and silver nanoparticles embedment contributed significantly to both the phenomenal SERS and recyclability. (C) 2016 Elsevier B.V. All rights reserved.
机译：介绍了一种合成载银的TiO2纳米管薄膜的简单策略，该薄膜用作多功能光催化剂和可回收的表面增强拉曼散射（SERS）基底。通过电化学阳极氧化制备的高度对齐的TiO2纳米管阵列（TNTA）用作银纳米粒子的3D粗糙主体。银沉积物是在真空中溅射的，发现它们的形貌主要受纳米管直径和紫外线辐射诱发的老化过程的影响，特别是银沿管壁的自迁移。使用罗丹明6G（R6G）作为探针分子观察到SERS和自清洁效果。结果表明，窄纳米管和银纳米颗粒的包埋显着地促进了显着的SERS和可回收性。 （C）2016 Elsevier B.V.保留所有权利。

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