Chinese Journal of Applied Chemistry ›› 2022, Vol. 39 ›› Issue (7): 1147-1156.DOI: 10.19894/j.issn.1000-0518.210349

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Construction of Nano Ag Modified TiO2 Nanotube Array Substrate for Surface Enhanced Raman Scattering Detection and Degradation of Tetracycline Hydrochloride

Xiao-Li ZHANG2, Yu-Mei PENG1, Qing-Wei WANG1, Li-Xia QIN1(), Xiao-Xia LIU1, Shi-Zhao KANG1, Xiang-Qing LI1()   

  1. 1.School of Chemical and Environmental Engineering,Shanghai Institude of Technology,Shanghai 201418,China
    2.School of Chemistry and Chemical Engineering,Shangqiu Normal College,Shangqiu 476000,China
  • Received:2021-07-19 Accepted:2021-11-23 Published:2022-07-01 Online:2022-07-11
  • Contact: Li-Xia QIN,Xiang-Qing LI
  • About
  • Supported by:
    the National Natural Science Foundation of China(21771125);the Scientific Research Project of Shanghai Municipal Science and Technology Commission(19090503700)


By combining anodic oxidation with photo-reduction method, a uniform, stable and recyclable surface enhanced Raman scattering (SERS)-active substrate composed of well-ordered Ag nanoparticles decorated on TiO2 nanotube arrays (TiO2NTAs/Ag) is obtained. The composition and structure of the TiO2NTAs/Ag are characterized using X-ray powder diffraction (XRD), X-ray photoelectron spectroscopy (XPS), UV-Vis diffuse reflection spectrum (UV-Vis DRS), surface enhanced Raman scattering spectroscopy (SERS) and scanning electron microscope (SEM) measurements. The SERS response of the TiO2NTAS/Ag array to tetracycline hydrochloride (TC-HCl) is further studied, which exhibits superior sensitivity for SERS detection of TC-HCl, and the detection limit could reach 1 × 10-14 mol/L in water. In addition, the TiO2NTAs/Ag substrate exhibits excellent degradation activity for TC-HCl under light and could be recycled for at least 8 times. It shows a potential application in SERS detection and degradation of organic contaminants in environment.

Key words: TiO2 nanotube arrays, Recyclable substrate, Surface enhanced Raman scattering detection, Photo-degradation, Tetracycline hydrochloride

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