Production of Titanium Dioxide/Reduced Graphene Oxide Composites and Investigation of Their Photocatalytic Properties

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YURDDAŞKAL M., Kartal U., DOLUEL E. C.

JOURNAL OF POLYTECHNIC-POLITEKNIK DERGISI, cilt.23, sa.1, ss.249-255, 2020 (ESCI) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 23 Sayı: 1
  • Basım Tarihi: 2020
  • Doi Numarası: 10.2339/politeknik.537900
  • Dergi Adı: JOURNAL OF POLYTECHNIC-POLITEKNIK DERGISI
  • Derginin Tarandığı İndeksler: Emerging Sources Citation Index (ESCI), TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.249-255
  • Anahtar Kelimeler: Titanium dioxide, reduced graphene oxide, photocatalysis, composite, sol-gel, HYDROTHERMAL SYNTHESIS, TEXTILE WASTE, WATER, DEGRADATION, NANOCOMPOSITES, PERFORMANCE, FILMS, FABRICATION, MECHANISM
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

In this study, titanium dioxide/reduced graphene oxide (TiO2/rGO) composites were synthesized by sol-gel method. Reduced graphene oxide was obtained with the aid of chemical reduction of graphene oxide (GO) produced by the Hummers method. TiO2/rGO composites were produced with different rGO content, 0.5, 1, 2, 4 and 6 wt. %, to investigate the effect of rGO addition on structural, morphological and photocatalytical properties. In addition, the pure TiO2 was also produced for comparison with all TiO2/rGO composites. The crystal phase structure, surface morphology, and chemical bond structure of TiO2/rGO composites were characterized using an XRD, SEM, and FTIR. Absorbance values were obtained by UV-Vis spectroscopy to determine the photocatalytic performance. As a result of the investigation of photocatalytic properties, it was observed that the composite containing 4 wt. % of rGO has a photocatalytic degradation efficiency of 87.1%. This study demonstrated that the TiO2/rGO composite obtained by the addition of 4 wt. % of rGO to TiO2 enhanced the photocatalytic performance by 20% compared to pure TiO2.