Selective Exposure of Robust Perovskite Layer of Aurivillius-Type Compounds for Stable Photocatalytic Overall Water Splitting

doi:10.1002/advs.202302206

IMR OpenIR

	Selective Exposure of Robust Perovskite Layer of Aurivillius-Type Compounds for Stable Photocatalytic Overall Water Splitting
	Huang, Jie 1,2; Kang, Yuyang 1; Liu, Jian-An 1,2; Chen, Ruotian 3; Xie, Tengfeng 4; Liu, Zhongran 5; Xu, Xiaoxiang 6; Tian, He 5; Yin, Lichang 1,2; Fan, Fengtao 3; Wang, Lianzhou 7,8; Liu, Gang 1,2
通讯作者	Liu, Gang(gangliu@imr.ac.cn)
	2023-05-31
发表期刊	ADVANCED SCIENCE
页码	9
摘要	Aurivillius-type compounds ((Bi2O2)(2+)(A(n)(-1)B(n)O(3)(n)(+1))(2-)) with alternately stacked layers of bismuth oxide (Bi2O2)(2+) and perovskite (A(n)(-1)B(n)O(3)(n)(+1))(2-) are promising photocatalysts for overall water splitting due to their suitable band structures and adjustable layered characteristics. However, the self-reduction of Bi3+ at the top (Bi2O2)(2+) layers induced by photogenerated electrons during photocatalytic processes causes inactivation of the compounds as photocatalysts. Here, using Bi3TiNbO9 as a model photocatalyst, its surface termination is modulated by acid etching, which well suppresses the self-corrosion phenomenon. A combination of comprehensive experimental investigations together with theoretical calculations reveals the transition of the material surface from the self-reduction-sensitive (Bi2O2)(2+) layer to the robust (BiTiNbO7)(2-) perovskite layer, enabling effective electron transfer through surface trapping and effective hole transfer through surface electric field, and also efficient transfer of the electrons to the cocatalyst for greatly enhanced photocatalytic overall water splitting. Moreover, this facile modification strategy can be readily extended to other Aurivillius compounds (e.g., SrBi2Nb2O9, Bi4Ti3O12, and SrBi4Ti4O15) and therefore justify its usefulness in rationally tailoring surface structures of layered photocatalysts for high photocatalytic overall water-splitting activity and stability.
关键词	Aurivillius compounds overall water splitting perovskites photocatalysis surface termination
资助者	National Key R&D Program of China ; National Natural Science Foundation of China ; CAS Projects for Young Scientists in Basic Research
DOI	10.1002/advs.202302206
收录类别	SCI
语种	英语
资助项目	National Key R&D Program of China[2021YFA1500800] ; National Natural Science Foundation of China[51825204] ; National Natural Science Foundation of China[52120105003] ; National Natural Science Foundation of China[51972312] ; CAS Projects for Young Scientists in Basic Research[YSBR-004]
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
WOS类目	Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号	WOS:000998326200001
出版者	WILEY
引用统计	被引频次：4[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/321006/178007
专题	中国科学院金属研究所
通讯作者	Liu, Gang
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian Natl Lab Clean Energy,iChEM, Dalian 116023, Peoples R China 4.Jilin Univ, Coll Chem, Changchun 130012, Peoples R China 5.Zhejiang Univ, Ctr Electron Microscopy, Sch Mat Sci & Engn, Hangzhou 310027, Peoples R China 6.Tongji Univ, Sch Chem Sci & Engn, Shanghai 200092, Peoples R China 7.Univ Queensland, Nanomat Ctr, Sch Chem Engn, St Lucia, Qld 4072, Australia 8.Univ Queensland, Australian Inst Bioengn & Nanotechnol, St Lucia, Qld 4072, Australia
推荐引用方式 GB/T 7714	Huang, Jie,Kang, Yuyang,Liu, Jian-An,et al. Selective Exposure of Robust Perovskite Layer of Aurivillius-Type Compounds for Stable Photocatalytic Overall Water Splitting[J]. ADVANCED SCIENCE,2023:9.
APA	Huang, Jie.,Kang, Yuyang.,Liu, Jian-An.,Chen, Ruotian.,Xie, Tengfeng.,...&Liu, Gang.(2023).Selective Exposure of Robust Perovskite Layer of Aurivillius-Type Compounds for Stable Photocatalytic Overall Water Splitting.ADVANCED SCIENCE,9.
MLA	Huang, Jie,et al."Selective Exposure of Robust Perovskite Layer of Aurivillius-Type Compounds for Stable Photocatalytic Overall Water Splitting".ADVANCED SCIENCE (2023):9.