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Environmental Science and Pollution Research

, Volume 25, Issue 18, pp 17553–17564 | Cite as

Enhanced TiO2 nanorods photocatalysts with partially reduced graphene oxide for degrading aqueous hazardous pollutants

  • Tao Peng
  • Jian Zhang
  • Srimanta Ray
  • Houssam Fakhouri
  • Xu Xu
  • Farzaneh Arefi-Khonsari
  • Jerald A. Lalman
Research Article
  • 152 Downloads

Abstract

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.

Keywords

TiO2 photocatalysts Graphene Functionalization Deoxidization Photo-electrochemical Reduced graphene oxide 

Notes

Funding information

Financial support for this work was provided by the Natural Sciences and Engineering Research Council (NSERC) of Canada (Grant No. 261797-2009), the Ontario Trillium Foundation, and the University of Windsor (Grant No. 13320).

Supplementary material

11356_2018_1886_MOESM1_ESM.docx (1.8 mb)
ESM 1 (DOCX 1.79 mb)

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Tao Peng
    • 1
    • 2
  • Jian Zhang
    • 3
  • Srimanta Ray
    • 4
  • Houssam Fakhouri
    • 2
  • Xu Xu
    • 5
  • Farzaneh Arefi-Khonsari
    • 2
  • Jerald A. Lalman
    • 1
  1. 1.Department of Civil and Environmental EngineeringUniversity of WindsorWindsorCanada
  2. 2.Laboratoire Interfaces et Systèmes Electrochimiques, LISE, CNRSSorbonne UniversitéParisFrance
  3. 3.State Key Laboratory of Material Processing and Die and Mould Technology, School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhanChina
  4. 4.Department of Chemical EngineeringNational Institute of Technology AgartalaAgartalaIndia
  5. 5.Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, Ministry of Education, School of Material Science and EngineeringGuilin University of TechnologyGuilinChina

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