Enhanced TiO 2 nanorods photocatalysts with partially reduced graphene oxide for degrading aqueous hazardous pollutants

Enhanced TiO 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...

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Published inEnvironmental science and pollution research international Vol. 25; no. 18; p. 17553
Main Authors Peng, Tao, Zhang, Jian, Ray, Srimanta, Fakhouri, Houssam, Xu, Xu, Arefi-Khonsari, Farzaneh, Lalman, Jerald A
Format Journal Article
LanguageEnglish
Published Germany 01.06.2018
Subjects
Azo Compounds - chemistry
Catalysis
Environmental Pollutants
Graphite - chemistry
Methylene Blue - chemistry
Nanotubes
Oxides - chemistry
Titanium - chemistry
Ultraviolet Rays
Water
Photo-electrochemical
Deoxidization
TiO2 photocatalysts
Functionalization
Graphene
Reduced graphene oxide
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Summary:Enhanced TiO 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 TiO photocatalyst could serve as a promising approach for preparing and optimizing other types of carbon-based photocatalysts such as graphene-based CdS.
ISSN:1614-7499