Boosting Photocatalytic Oxygen Evolution: Purposely Constructing Direct Z-Scheme Photoanode by Modulating the Interface Electric Field

doi:10.1007/s40242-020-0278-9

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	Boosting Photocatalytic Oxygen Evolution: Purposely Constructing Direct Z-Scheme Photoanode by Modulating the Interface Electric Field
	Y. Y. Li, Q. N. Wu, K. Zhang, B. Hu, Y. H. Lin, D. J. Wang and T. F. Xie
刊名	Chemical Research in Chinese Universities
	2020
卷号	36 期号:6 页码:1059-1067
ISSN号	1005-9040
DOI	10.1007/s40242-020-0278-9
英文摘要	Ti-Fe2O3 photoanode has received widespread attention in photoelectrochemical(PEC) water spilling because of its optimized oxidative and reductive capability of composites catalyst. However, its low efficiency could limit its development. Herein, in order to improve the efficiency of PEC water spilling, the all-solid-state direct Z-scheme Ti-ZnFe2O4/Ti-Fe2O3(TZFO/Ti-Fe2O3) nanorod arrays composited with the ideal energy band structure are synthesized by modulating the Fermi level of TZFO for PEC water splitting. The photophysical methods in this work, including the Kelvin probe measurement and transient photovoltage spectroscopy(TPV) measurement, are applied to explore the migration behavior of electric charges at the enhanced interface electric field. Finally, the Z-scheme charge transfer mechanism of TZFO/Ti-Fe2O3 photoanode is proved successfully. Benefiting from the desirable charge transfer at interface electric field, the TZFO/Ti-Fe2O3 exhibits the outstanding photocatalytic oxygen evolution reaction(OER) performance, and the photocurrent of 60TZFO/Ti-Fe2O3 photoanode reaches 2.16 mA/cm(2) at 1.23 V vs. reversible hydrogen electrode(RHE), which is three times higher than that of pure Ti-Fe2O3 photoanode. This work provides a facile approach of modulating interface electric field to optimize the Z-scheme charge-transfer process.
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语种	英语
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/64339]
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Y. Y. Li, Q. N. Wu, K. Zhang, B. Hu, Y. H. Lin, D. J. Wang and T. F. Xie. Boosting Photocatalytic Oxygen Evolution: Purposely Constructing Direct Z-Scheme Photoanode by Modulating the Interface Electric Field[J]. Chemical Research in Chinese Universities,2020,36(6):1059-1067.
APA	Y. Y. Li, Q. N. Wu, K. Zhang, B. Hu, Y. H. Lin, D. J. Wang and T. F. Xie.(2020).Boosting Photocatalytic Oxygen Evolution: Purposely Constructing Direct Z-Scheme Photoanode by Modulating the Interface Electric Field.Chemical Research in Chinese Universities,36(6),1059-1067.
MLA	Y. Y. Li, Q. N. Wu, K. Zhang, B. Hu, Y. H. Lin, D. J. Wang and T. F. Xie."Boosting Photocatalytic Oxygen Evolution: Purposely Constructing Direct Z-Scheme Photoanode by Modulating the Interface Electric Field".Chemical Research in Chinese Universities 36.6(2020):1059-1067.