TiO2 Nanofoam–Nanotube Array for Surface-Enhanced Raman Scattering

Li Liu; Fan Pan; Chang Liu; Liangliang Huang; Wei Li; Xiaohua Lu

doi:10.1021/acsanm.8b01566

TiO2 Nanofoam–Nanotube Array for Surface-Enhanced Raman Scattering

Li Liu, Fan Pan, Chang Liu, Liangliang Huang, Wei Li, Xiaohua Lu

Research output: Contribution to journal › Article › peer-review

Abstract

By tuning the anodic voltage and electrochemical reaction time, we have synthesized a series of TiO2 nanofoam–nanotube array structures via a two-step anodic oxidation process. The produced nanofoam–nanotube array demonstrated a remarkable Raman scattering enhancement. The maximum enhancement factors are 2.3 × 105 for methylene blue. Factors such as the nanotube pore size, nanofoam, and solute concentration have been investigated. The Raman scattering enhancement is attributed to the existence of the nanofoam structure, which enables multiple laser scatterings among the periodic voids and allows for the occurrence of Raman scattering. The proposed simple and inexpensive approach can promote the use of TiO2 materials for surface-enhanced Raman scattering applications in chemistry, biology, and nanoscience.

Original language	English
Pages (from-to)	6563–6566
Number of pages	4
Journal	ACS Applied Nano Materials
Volume	1
Issue number	12
Early online date	20 Nov 2018
DOIs	https://doi.org/10.1021/acsanm.8b01566
Publication status	Published - 28 Dec 2018

Bibliographical note

This document is the Accepted Manuscript version of a Published Work that appeared in final form in Applied Nano Materials, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/10.1021/acsanm.8b01566

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10.1021/acsanm.8b01566

TiO2 Nanofoam–Nanotube Array for Surface-Enhanced Raman Scattering
This document is the Accepted Manuscript version of a Published Work that appeared in final form in Applied Nano Materials, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/10.1021/acsanm.8b01566
Accepted author manuscript, 438 KB

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title = "TiO2 Nanofoam–Nanotube Array for Surface-Enhanced Raman Scattering",

abstract = "By tuning the anodic voltage and electrochemical reaction time, we have synthesized a series of TiO2 nanofoam–nanotube array structures via a two-step anodic oxidation process. The produced nanofoam–nanotube array demonstrated a remarkable Raman scattering enhancement. The maximum enhancement factors are 2.3 × 105 for methylene blue. Factors such as the nanotube pore size, nanofoam, and solute concentration have been investigated. The Raman scattering enhancement is attributed to the existence of the nanofoam structure, which enables multiple laser scatterings among the periodic voids and allows for the occurrence of Raman scattering. The proposed simple and inexpensive approach can promote the use of TiO2 materials for surface-enhanced Raman scattering applications in chemistry, biology, and nanoscience.",

author = "Li Liu and Fan Pan and Chang Liu and Liangliang Huang and Wei Li and Xiaohua Lu",

note = "This document is the Accepted Manuscript version of a Published Work that appeared in final form in Applied Nano Materials, copyright {\textcopyright} American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/10.1021/acsanm.8b01566",

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AU - Liu, Li

AU - Pan, Fan

AU - Liu, Chang

AU - Huang, Liangliang

AU - Li, Wei

AU - Lu, Xiaohua

N1 - This document is the Accepted Manuscript version of a Published Work that appeared in final form in Applied Nano Materials, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/10.1021/acsanm.8b01566

PY - 2018/12/28

Y1 - 2018/12/28

N2 - By tuning the anodic voltage and electrochemical reaction time, we have synthesized a series of TiO2 nanofoam–nanotube array structures via a two-step anodic oxidation process. The produced nanofoam–nanotube array demonstrated a remarkable Raman scattering enhancement. The maximum enhancement factors are 2.3 × 105 for methylene blue. Factors such as the nanotube pore size, nanofoam, and solute concentration have been investigated. The Raman scattering enhancement is attributed to the existence of the nanofoam structure, which enables multiple laser scatterings among the periodic voids and allows for the occurrence of Raman scattering. The proposed simple and inexpensive approach can promote the use of TiO2 materials for surface-enhanced Raman scattering applications in chemistry, biology, and nanoscience.

AB - By tuning the anodic voltage and electrochemical reaction time, we have synthesized a series of TiO2 nanofoam–nanotube array structures via a two-step anodic oxidation process. The produced nanofoam–nanotube array demonstrated a remarkable Raman scattering enhancement. The maximum enhancement factors are 2.3 × 105 for methylene blue. Factors such as the nanotube pore size, nanofoam, and solute concentration have been investigated. The Raman scattering enhancement is attributed to the existence of the nanofoam structure, which enables multiple laser scatterings among the periodic voids and allows for the occurrence of Raman scattering. The proposed simple and inexpensive approach can promote the use of TiO2 materials for surface-enhanced Raman scattering applications in chemistry, biology, and nanoscience.

UR - https://pubs.acs.org/doi/10.1021/acsanm.8b01566

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DO - 10.1021/acsanm.8b01566

M3 - Article

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EP - 6566

JO - ACS Applied Nano Materials

JF - ACS Applied Nano Materials

IS - 12

ER -

TiO2 Nanofoam–Nanotube Array for Surface-Enhanced Raman Scattering

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