Enhanced TiO2 nanorods photocatalysts with partially reduced graphene oxide for degrading aqueous hazardous pollutants
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Enhanced TiO2 nanorods (TNRs) with partially reduced graphene oxide (RGO) (designated as GT) were prepared for degrading aqueous hazardous pollutants. The degree of RGO oxidation had an important role in affecting the photoelectronic and photocatalytic activities of GT composites. The study examined the impact of the degree of RGO oxidation on the photocatalytic activities. The photocatalytic activity of the materials was investigated for degrading rhodamine b (RhB), methyl orange (MO), methylene blue (MB), and phenol by using ultraviolet (UV) light. The highest photocatalytic activity was observed when the atomic oxygen-to-carbon (O/C) ratio of RGO was 0.130 ± 0.003. This study suggested the photocatalytic performance was maximized by preserving a selected amount of the RGO oxygen-containing groups. The work reported in this study on optimizing the RGO-based TiO2 photocatalyst could serve as a promising approach for preparing and optimizing other types of carbon-based photocatalysts such as graphene-based CdS.
KeywordsTiO2 photocatalysts Graphene Functionalization Deoxidization Photo-electrochemical Reduced graphene oxide
- Akhavan O, Ghaderi G (2013) Flash photo stimulation of human neural stem cells on graphene/TiO2 heterojunction for differentiation into neurons. Nano 2013(5):10316–10326Google Scholar
- Pelaez M, Nolan NT, Pillai SC, Seery MK, Falaras P, Kontos AG, Dunlop PSM, Hamilton JWJ, Byrne JA, O'Shea K, Entezari MH, Dionysiou DD (2012) A review on the visible light active titanium dioxide photocatalysts for environmental applications. Appl Catal B 125:331–349. https://doi.org/10.1016/j.apcatb.2012.05.036 CrossRefGoogle Scholar
- Singh N, Rana MS, Gupta RK (2017) Modelling studies for photocatalytic degradation of organic dyes using TiO2 nanofibers. Environ Sci Pollut Res. https://doi.org/10.1007/s11356-017-0053-8