Electron confinement promoted the electric double layer effect of BiOI/ B-Bi2O3 in photocatalytic water splitting

doi:10.1016/j.jcis.2023.09.059

IMR OpenIR

	Electron confinement promoted the electric double layer effect of BiOI/ B-Bi2O3 in photocatalytic water splitting
	Shan, Lianwei 1; Fang, Zilan 1; Ding, Guodao 1; Shi, Ziqi 1; Dong, Limin 1; Li, Dan 1; Wu, Haitao 2; Li, Xuejiao 1; Suriyaprakash, Jagadeesh 3; Zhou, Yangtao 4; Xiao, Yanwei 1
通讯作者	Dong, Limin(donglimin@hrbust.edu.cn) ; Wu, Haitao(wuhaitao@ytu.edu.cn) ; Suriyaprakash, Jagadeesh(jaga@m.scnu.edu.cn)
	2024
发表期刊	JOURNAL OF COLLOID AND INTERFACE SCIENCE
ISSN	0021-9797
卷号	653 页码:94-107
摘要	In the realm of photocatalysis, understanding the interface issues (solid/solid and solid/liquid) inherent in heterojunction at the atomic level is the ultimate for engineering an efficient photocatalyst. Herein, an electrophoretic deposition technique is adopted to synthesize BiOI/B-Bi2O3 heterojunction, exhibiting superior photocatalytic activity and stability in H2 evolution (91.5 mu mol g-1 h-1) and H2O2 production (11.3 mg L-1 h-1). Combined with the experimental and computational results, a lower free energy of hydrogen evolution reaction (252.4 meV) has been observed contrast to BiOI and B-Bi2O3 samples. A carrier transfer process of like S-scheme heterojunction is proposed based on density of states (DOS) and carrier distribution calculations. The theoretical calculations illustrate the transition dipole moment, migration and accumulation of carrier in BiOI/B-Bi2O3 heterojunction. Subsequent ab initio molecular dynamics (AIMD) results of solid/liquid interface systems (BiOI/ B-Bi2O3/H2O and B-Bi2O3/H2O) unravel the interface H2O (solvent) behaviors. The local aggregation of photo generated electrons in BiOI/B-Bi2O3/H2O leads to a large potential drop, high proton migration rate and the steady electric double layer (EDL) structure compared to the B-Bi2O3/H2O, which facilitates the occurrence of photocatalytic reactions in solution. In addition to offering new insights into the hydrogen evolution and proton transfer in the EDL model and the association between the heterojunction effect and EDL structure, this work also introduces a novel design strategy for Bi-based heterojunctions.
关键词	Confinement Photocatalysis S-scheme heterojunction Electric double layer
资助者	Nature Scientific Foundation of Heilongjiang Province ; Ecological and Environmental Protection Research Project of Heilongjiang Province ; China Postdoctoral Science Foundation ; Natural Science Foundation of Shandong Province
DOI	10.1016/j.jcis.2023.09.059
收录类别	SCI
语种	英语
资助项目	Nature Scientific Foundation of Heilongjiang Province[ZD2022E005] ; Ecological and Environmental Protection Research Project of Heilongjiang Province[HST2022S010] ; China Postdoctoral Science Foundation[2020M672669] ; Natural Science Foundation of Shandong Province[ZR2021LSW014]
WOS研究方向	Chemistry
WOS类目	Chemistry, Physical
WOS记录号	WOS:001076887800001
出版者	ACADEMIC PRESS INC ELSEVIER SCIENCE
引用统计	被引频次：24[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/179371
专题	中国科学院金属研究所
通讯作者	Dong, Limin; Wu, Haitao; Suriyaprakash, Jagadeesh
作者单位	1.Harbin Univ Sci & Technol, Sch Mat Sci & Chem Engn, Heilongjiang Prov Key Lab CO Resource Utilizat & E, Harbin 150040, Peoples R China 2.Yantai Univ, Sch Environm & Mat Engn, Yantai 264005, Shandong, Peoples R China 3.South China Normal Univ, Sch Informat & Optoelect Sci & Engn, Guangdong Prov Key Lab Nanophoton Funct Mat & Dev, Guangzhou 510006, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Wenhua Rd 72, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Shan, Lianwei,Fang, Zilan,Ding, Guodao,et al. Electron confinement promoted the electric double layer effect of BiOI/ B-Bi2O3 in photocatalytic water splitting[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2024,653:94-107.
APA	Shan, Lianwei.,Fang, Zilan.,Ding, Guodao.,Shi, Ziqi.,Dong, Limin.,...&Xiao, Yanwei.(2024).Electron confinement promoted the electric double layer effect of BiOI/ B-Bi2O3 in photocatalytic water splitting.JOURNAL OF COLLOID AND INTERFACE SCIENCE,653,94-107.
MLA	Shan, Lianwei,et al."Electron confinement promoted the electric double layer effect of BiOI/ B-Bi2O3 in photocatalytic water splitting".JOURNAL OF COLLOID AND INTERFACE SCIENCE 653(2024):94-107.