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A Dumbbell CaBi 2 O 4 Photoelectrode for Photoelectrochemical Water Splitting
Author(s) -
Wang Xuan,
Liu Zhihua,
Liu Zhifeng
Publication year - 2017
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201700938
Subject(s) - photocurrent , dumbbell , water splitting , nanostructure , materials science , hydrothermal circulation , microstructure , nanotechnology , chemical engineering , optoelectronics , composite material , chemistry , catalysis , photocatalysis , organic chemistry , medicine , engineering , physical therapy
This paper describes a promising film based on the dumbbell‐shaped CaBi 2 O 4 nanostructure that is applied in photoelectrochemical (PEC) water splitting as a photoelectrode for the first time. The morphology and microstructure of CaBi 2 O 4 were characterized in detail. PEC measurements showed that the dumbbell‐shaped CaBi 2 O 4 nanostructure film, on the basis of the optimal hydrothermal time, exhibited higher photoelectrochemical activity, as the photocurrent density reached up to 1.19 mA cm −2 . The remarkable PEC performance may stem from excellent light absorbance and efficient charge–hole pair separation and collection. This research indicates that the dumbbell‐like CaBi 2 O 4 nanostructure film has enormous potential in PEC water splitting.