Korean Journal of Chemical Engineering

, Volume 35, Issue 4, pp 1019–1025 | Cite as

Hydrothermally synthesized highly dispersed Na2Ti3O7 nanotubes and their photocatalytic degradation and H2 evolution activity under UV and simulated solar light irradiation

Materials (Organic, Inorganic, Electronic, Thin Films)
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Abstract

Photocatalytic water splitting technologies are currently being considered for alternative energy sources. However, the strong demand for a high H2 production rate will present conflicting requirements of excellent photoactivity and low-cost photocatalysts. The first alternative may be abundant nanostructured titanate-related materials as a photocatalyst. Here, we report highly dispersed Na2Ti3O7 nanotubes synthesized via a facile hydrothermal route for photocatalytic degradation of Rhodamine B (RhB) and the water splitting under UV-visible light irradiation. Compared with commercial TiO2, the nanostructured Na2Ti3O7 demonstrated excellent photodegradation and water splitting performance, thus addressing the need for low-cost photocatalysts. The as-synthesized Na2Ti3O7 nanotubes exhibited desirable photodegradation, and rate of H2 production was 1,755 μmol·g−1·h−1 and 1,130 μmol·g−1·h−1 under UV and simulated solar light irradiation, respectively; the resulting as-synthesized Na2Ti3O7 nanotubes are active in UV light than that of visible light response.

Keywords

Photocatalysts Na2Ti3O7 Hydrogen Evolution Pollutants Renewable Energy 

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Copyright information

© Korean Institute of Chemical Engineers, Seoul, Korea 2018

Authors and Affiliations

  • S. V. Prabhakar Vattikuti
    • 1
  • Police Anil Kumar Reddy
    • 2
  • Narendra Bandaru
    • 3
  • Jaesool Shim
    • 1
  • Chan Byon
    • 2
  1. 1.School of Mechanical EngineeringYeungnam UniversityGyeongsanKorea
  2. 2.School of Mechanical and Nuclear EngineeringUlsan National Institute of Science and Technology (UNIST)UlsanKorea
  3. 3.Department of Material Science and EngineeringIIT Gandhi NagarAhmedabadIndia

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