Journal of Materials Science

, Volume 52, Issue 13, pp 8311–8320

Novel titanium dioxide–graphene–activated carbon ternary nanocomposites with enhanced photocatalytic performance in rhodamine B and tetracycline hydrochloride degradation

  • Lu-Lu Qu
  • Na Wang
  • Yan-Yan Li
  • Dan-Dan Bao
  • Guo-Hai Yang
  • Hai-Tao Li
Original Paper

DOI: 10.1007/s10853-017-1047-0

Cite this article as:
Qu, LL., Wang, N., Li, YY. et al. J Mater Sci (2017) 52: 8311. doi:10.1007/s10853-017-1047-0
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Abstract

A novel ternary nanocomposite consisting of activated carbon (AC) and titanium dioxide (TiO2) decoration in the presence of reduced graphene oxide (TiO2–rGO–AC) was fabricated by a facile hydrothermal synthesis method for use as a high-performance photocatalyst. The as-prepared TiO2–rGO–AC nanocomposites were characterized by X-ray diffraction (XRD), scanning electron microscopy, transmission electron microscopy, and UV–Vis diffuse reflectance spectroscopy. The results demonstrated that the TiO2 and activated carbon were well dispersed on the rGO surface. The photocatalytic performance of the TiO2–rGO–AC nanocomposite was evaluated as a catalyst for the photodegradation of rhodamine B. The degradation rate was 3.4 times higher than that of pure TiO2 under simulated solar light irradiation. The enhancement of photocatalytic performance is attributed to the adsorption of AC which significantly increased the organic molecule concentration near the catalytic surface, allowing the effective transfer and separation of photogenerated electrons. TiO2–rGO–AC photocatalyst is also effective for the degradation of tetracycline in aqueous solution, suggesting wide application of these nanocomposite materials in various fields including air purification and wastewater treatment.

Supplementary material

10853_2017_1047_MOESM1_ESM.docx (888 kb)
Supplementary material 1 (DOCX 888 kb)

Copyright information

© Springer Science+Business Media New York 2017

Authors and Affiliations

  1. 1.School of Chemistry and Materials ScienceJiangsu Normal UniversityXuzhouChina

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