Surface-Alkalinization-Induced Enhancement of Photocatalytic H2 Evolution over SrTiO3-Based Photocatalysts
Citations Over TimeTop 1% of 2012 papers
Abstract
A strategy of reaction-environment modulation was employed to change the surface property of a semiconductor photocatalyst to enhance its photocatalytic performance. Surface alkalinization induced by a high alkalinity of the solution environment significantly shifted the surface energy band of a SrTiO(3) photocatalyst to a more negative level, supplying a strong potential for H(2)O reduction and consequently promoting the photocatalytic efficiency of H(2) evolution. This mechanism is also applicable for visible-light-sensitive La,Cr-codoped SrTiO(3) photocatalyst, which hence, could achieve a high apparent quantum efficiency of 25.6% for H(2) evolution in CH(3)OH aqueous solution containing 5 M NaOH at an incident wavelength of 425 ± 12 nm.
Related Papers
- → Photocatalytic activation of TiO2 under visible light using Acid Red 44(2003)148 cited
- → A practical pathway for the preparation of Fe2O3 decorated TiO2 photocatalyst with enhanced visible-light photoactivity(2017)71 cited
- → Photocatalytic H2 evolution on a novel CaIn2S4 photocatalyst under visible light irradiation(2013)56 cited
- → Visible-light photocatalytic behavior of two different N-doped TiO2(2008)40 cited
- → TiO2 Nanoparticles Acid-assisted Synthesis and the Enhanced Visible-light Photocatalytic Activity(2023)