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Facet‐Selective Deposition of Metal (M=Au, Pt, Pd) Nanoparticles on Co 3 O 4 Crystals: Magnetically Separable Photocatalyst with Improved Catalytic Performance
Author(s) -
Liu Qipeng,
Cao Muhan,
Chen Lei,
Yuan Xiaolei,
Zhong Qixuan,
Wu Linzhong,
Yang Di,
Hu Huicheng,
Xu Yong,
Zhang Qiao
Publication year - 2018
Publication title -
chempluschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.801
H-Index - 61
ISSN - 2192-6506
DOI - 10.1002/cplu.201700527
Subject(s) - photocatalysis , noble metal , materials science , catalysis , nanoparticle , nanocrystal , deposition (geology) , facet (psychology) , metal , chemical engineering , nanotechnology , inorganic chemistry , chemistry , organic chemistry , psychology , paleontology , social psychology , personality , engineering , big five personality traits , sediment , metallurgy , biology
Depositing noble metals on specific facets of semiconductors can improve the separation of photoexcited hole–electron pairs during the photocatalytic reaction, resulting in enhanced photocatalytic performance. This work describes the selective deposition of noble metal nanoparticles (Au, Pt, Pd) on some specific facets of p‐type Co 3 O 4 through a simple and facile photoassisted method. The deposition of Au nanoparticles (NPs) on {111} facets of Co 3 O 4 nanocrystals (NCs) can remarkably improve their photocatalytic activity towards water oxidation, which can be attributed to enhanced charge spatial separation. Moreover, the magnetically separated photocatalysts are good examples of new designed photocatalysts that can be recovered easily.