DataVXACS Applied Nano MaterialsPaper
journal article·2018-12-28Open access

TiO2 Nanofoam–Nanotube Array for Surface-Enhanced Raman Scattering

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

ACS Applied Nano Materials· Volume 1· Issue 12
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Source abstract

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.
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Research context

Nanomaterials

OpenAlex topics: Gold and Silver Nanoparticles Synthesis and Applications · Advanced Nanomaterials in Catalysis · Spectroscopy Techniques in Biomedical and Chemical Research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China

School of Chemical, Biological & Materials Engineering, University of Oklahoma, Norman, Oklahoma 73019, United States

European Bioenergy Research Institute and Aston Institute of Materials Research, Aston University, Birmingham B4 7ET, United Kingdom

Funding

National Natural Science Foundation of China · State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University · Priority Academic Program Development of Jiangsu Higher Education Institutions

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