Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 6, Issue 16, Pages 14405-14414Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am503674e
Keywords
heterostructured; g-C3N4; Ag; TiO2 microspheres; photocatalysis; visible-light
Funding
- National Nature Science Foundation of China [51103045]
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The visible-light photocatalytic performance of the heterostructured g-C3N4/Ag/TiO2 microspheres was investigated. As an electron-conduction bridge, Ag nanopartides were photodeposited as the interlayer between g-C3N4 and the surface of TiO2 microspheres to increase visible-light absorption via the surface plasmon resonance. The interface between Ag/TiO, and g-C3N4 facilitates the direct migration of photoinduced electrons from g-C3N4 to Ag/TiO2, which is conductive to retarding the recombination of electron holes. The g-C3N4 (4%)/Ag/TiO2 microsphere sample shows significant photocatalytic activity, higher than the sum of g-C3N4 (1.2 mg) and Ag/TiO2 samples, or the sum of TiO2 and Ag/g-C3N4 (1.8 mg) samples. It indicates that the heterostructured combination of g-C3N4, Ag and TiO2 microspheres provides synergistic photocatalytic activity through an efficient electron transfer process.
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