In-situ fabrication of atomic charge transferring path for constructing heterojunction photocatalysts with hierarchical structure

doi:10.1016/j.apcatb.2019.02.050

	In-situ fabrication of atomic charge transferring path for constructing heterojunction photocatalysts with hierarchical structure
	Li, Rengui 2; Liu, Dongxu 1; Zhang, Jing 1; Li, Chun 1; Zhang, Xun 1; Chen, Xuebing 1; Wang, Fangfang 1; Shi, Ming 2; Li, Can 2
刊名	APPLIED CATALYSIS B-ENVIRONMENTAL
	2019-07-05
卷号	248 页码:459-465
关键词	Charge separation Heterojunction Photocatalysis Hierarchical structure
ISSN号	0926-3373
DOI	10.1016/j.apcatb.2019.02.050
通讯作者	Zhang, Jing(zhangjing@lnpu.edu.cn) ; Li, Rengui(rgli@lnpu.edu.cn)
英文摘要	The efficiencies of photocatalytic solar energy conversion systems are significantly limited by the challenging charge separation process, which can be improved via some commonly-used interfacial modulating strategies, e.g., introducing heterojunctions at the interfaces of different semiconductors. However, in many cases, the constructed heterojunctions not always work well mainly due to the serious mismatching of surface and energy structures between different components. In this study, inspired by the similarities in crystalline structures and elemental compositions, a novel heterojunction photocatalyst with hierarchical structure was first fabricated between bismuth-based semiconductors (Bi2Ti2O2 and gamma-Bi2O3) possessing identical cubic phase via a simple insitu transformation method. The resulted Bi2Ti2O7/gamma-Bi2O3 heterojunction photocatalyst (denoted as BT/gamma-Bi2O3) shows extremely high photocatalytic activities in photocatalytic removal of various high concentration environmental pollutants, e.g., phenol, dyes and sulfur containing compounds. An enhancement of more than two orders of magnitude in photocatalytic performances can be achieved for the BT/gamma-Bi2O3 photocatalyst than the single composite, which is possibly attributable to the co-sharing of Bi-O tetrahedra units for the composites in heterojunction structures to provide an atomic charge transferring pathway for facilitating the spatial charge separation. This work provides an effective strategy for rationally constructing charge separation and transfer pathway in semiconductor-based photocatalysts for solar energy conversion.
资助项目	National Natural Science Foundation of China[21573101] ; support plan for Distinguished Professor of Liaoning Province[[2015]153] ; Liaoning BaiQianWan Talents program[[2017]96] ; University innovation talent support plan of Liaoning Province[LR2017011] ; State Key Laboratory of Catalysis in DICP[N-15-10] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA21010207] ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; R&D department of PetroChina
WOS关键词	ORGANIC POLLUTANTS ; DEGRADATION ; PERFORMANCE ; BI2TI2O7 ; UV
WOS研究方向	Chemistry ; Engineering
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000463126200046
资助机构	National Natural Science Foundation of China ; National Natural Science Foundation of China ; support plan for Distinguished Professor of Liaoning Province ; support plan for Distinguished Professor of Liaoning Province ; Liaoning BaiQianWan Talents program ; Liaoning BaiQianWan Talents program ; University innovation talent support plan of Liaoning Province ; University innovation talent support plan of Liaoning Province ; State Key Laboratory of Catalysis in DICP ; State Key Laboratory of Catalysis in DICP ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; R&D department of PetroChina ; R&D department of PetroChina ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; support plan for Distinguished Professor of Liaoning Province ; support plan for Distinguished Professor of Liaoning Province ; Liaoning BaiQianWan Talents program ; Liaoning BaiQianWan Talents program ; University innovation talent support plan of Liaoning Province ; University innovation talent support plan of Liaoning Province ; State Key Laboratory of Catalysis in DICP ; State Key Laboratory of Catalysis in DICP ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; R&D department of PetroChina ; R&D department of PetroChina ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; support plan for Distinguished Professor of Liaoning Province ; support plan for Distinguished Professor of Liaoning Province ; Liaoning BaiQianWan Talents program ; Liaoning BaiQianWan Talents program ; University innovation talent support plan of Liaoning Province ; University innovation talent support plan of Liaoning Province ; State Key Laboratory of Catalysis in DICP ; State Key Laboratory of Catalysis in DICP ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; R&D department of PetroChina ; R&D department of PetroChina ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; support plan for Distinguished Professor of Liaoning Province ; support plan for Distinguished Professor of Liaoning Province ; Liaoning BaiQianWan Talents program ; Liaoning BaiQianWan Talents program ; University innovation talent support plan of Liaoning Province ; University innovation talent support plan of Liaoning Province ; State Key Laboratory of Catalysis in DICP ; State Key Laboratory of Catalysis in DICP ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; R&D department of PetroChina ; R&D department of PetroChina
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/165642]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Li, Rengui; Zhang, Jing
作者单位	1.Liaoning Shihua Univ, Coll Chem Chem Engn & Environm Engn, Fushun 113001, Liaoning, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Li, Rengui,Liu, Dongxu,Zhang, Jing,et al. In-situ fabrication of atomic charge transferring path for constructing heterojunction photocatalysts with hierarchical structure[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2019,248:459-465.
APA	Li, Rengui.,Liu, Dongxu.,Zhang, Jing.,Li, Chun.,Zhang, Xun.,...&Li, Can.(2019).In-situ fabrication of atomic charge transferring path for constructing heterojunction photocatalysts with hierarchical structure.APPLIED CATALYSIS B-ENVIRONMENTAL,248,459-465.
MLA	Li, Rengui,et al."In-situ fabrication of atomic charge transferring path for constructing heterojunction photocatalysts with hierarchical structure".APPLIED CATALYSIS B-ENVIRONMENTAL 248(2019):459-465.