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Integration of Au nanoparticles with a g-C₃N₄ based heterostructure: switching charge transfer from type-II to Z-scheme for enhanced visible light photocatalysis

Author:
Shi, Li, Li, Zhao, Marcus, Kyle, Wang, Guanzhi, Liang, Kun, Niu, Wenhan, Yang, Yang
Source:
Chemical communications 2018 v.54 no.30 pp. 3747-3750
ISSN:
1364-548X
Subject:
carbon nitride, chromium, gold, irradiation, nanogold, nanosheets, photocatalysis
Abstract:
Here, we demonstrate that a type-II g-C₃N₄ nanosheet (CNNS)/W₁₈O₄₉ heterostructure composite can be switched to Z-scheme through the deposition of Au nanoparticles (NPs) on the surface of CNNS. As a direct result, the designed Au/CNNS/W₁₈O₄₉ heterostructure shows enhanced photocatalytic performance for Cr(vi) reduction than the CNNS/W₁₈O₄₉ heterostructure and single components (CNNS and W₁₈O₄₉) under visible light irradiation.
Agid:
6174893