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Title: Enhanced photocatalytic H{sub 2} evolution over CdS/Au/g-C{sub 3}N{sub 4} composite photocatalyst under visible-light irradiation

A novel heterojunction structured composite photocatalyst CdS/Au/g-C{sub 3}N{sub 4} has been developed by depositing CdS/Au with a core (Au)-shell (CdS) structure on the surface of g-C{sub 3}N{sub 4}. The photocatalytic hydrogen production activity of the developed photocatalyst was evaluated under visible-light irradiation (λ > 420 nm) using methanol as a sacrificial reagent. As a result, its activity is about 125.8 times higher than that of g-C{sub 3}N{sub 4} and is even much higher than that of Pt/g-C{sub 3}N{sub 4}. The enhancement in photocatalytic activity is attributed to efficient separation of the photoexcited charges due to the anisotropic junction in the CdS/Au/g-C{sub 3}N{sub 4} system.
Authors:
 [1] ;  [2] ; ; ; ; ; ;  [1]
  1. Laboratory of Environmental Sciences and Technology, Xinjiang Technical Institute of Physics and Chemistry, Key Laboratory of Functional Materials and Devices for Special Environments, Chinese Academy of Sciences, Urumqi 830011 (China)
  2. (China)
Publication Date:
OSTI Identifier:
22499207
Resource Type:
Journal Article
Resource Relation:
Journal Name: APL Materials; Journal Volume: 3; Journal Issue: 10; Other Information: (c) 2015 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ANISOTROPY; CADMIUM SULFIDES; CARBON NITRIDES; DEPOSITS; HYDROGEN; IRRADIATION; METHANOL; PHOTOCATALYSIS; SURFACES