Pore walls as high-way for efficient bulk charge transfer in porous SrTiO 3 single crystals boosting photocatalytic overall water splitting

doi:10.1016/j.jcis.2024.04.129

IMR OpenIR

	Pore walls as high-way for efficient bulk charge transfer in porous SrTiO 3 single crystals boosting photocatalytic overall water splitting
	Li, Na 1,2; Chen, Yaping 3,4,5; Wu, Tingting 1,2; Li, Xiaojing 1,2; Zhang, Shuting 1,2; Chang, Wenjiao 1,2; Turkevych, Volodymyr ; Wang, Lei 1
通讯作者	Wu, Tingting(ttwu@qust.edu.cn) ; Wang, Lei(inorchemwl@126.com)
	2024-08-15
发表期刊	JOURNAL OF COLLOID AND INTERFACE SCIENCE
ISSN	0021-9797
卷号	668 页码:484-491
摘要	Suppressing carrier recombination in bulk and facilitating carrier transfer to surface via rational structure design is of great significance to improve solar -to -H 2 conversion efficiency. We demonstrate a facile hydrothermal method to synthesize porous SrTiO 3 single crystals (SrTiO 3 -P) with exposed (001) facets by introducing carbon spheres as templates. The obviously increased surface photovoltage and photocurrent response indicate that the interconnected pore walls act as enormous charge transfer "highways ", accelerating carrier transport from bulk to surface. Furthermore, the absence of grain boundaries and high crystallinity could also lower the carrier recombination rate. Thus, the SrTiO 3 -P photocatalyst loaded with Rh/Cr 2 O 3 as cocatalyst exhibits 1.5 times higher overall water splitting activity than that of solid SrTiO 3 , with gas evolution rate of 19.99 mu mol h -1 50 mg - 1 for H 2 and 11.37 mu mol h -1 50 mg - 1 for O 2 . Additionally, SrTiO 3 -P also shows superior stability without any decay during cycling testing. This work provides a new insight into designing efficient multicomponent photocatalysts with a single -crystal porous structure.
关键词	Bulk separation Porous single crystal SrTiO3 Photocatalysis Overall water splitting
资助者	National Natural Science Foundation of China ; Natural Science Foundation of Shandong Province, China ; Outstanding Youth Foundation of Shandong Province, China ; University Youth Innovation Team of Shandong Province ; Major Scientific and Technological Innovation Project ; Taishan Scholar Young Talent Program ; Shandong Province Double-Hundred Talent Plan
DOI	10.1016/j.jcis.2024.04.129
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[52272222] ; National Natural Science Foundation of China[52072197] ; National Natural Science Foundation of China[52102272] ; Natural Science Foundation of Shandong Province, China[ZR2021QE063] ; Outstanding Youth Foundation of Shandong Province, China[ZR2019JQ14] ; University Youth Innovation Team of Shandong Province[2019KJC004] ; University Youth Innovation Team of Shandong Province[202201010318] ; Major Scientific and Technological Innovation Project[2019JZZY020405] ; Taishan Scholar Young Talent Program[tsqn201909114] ; Shandong Province Double-Hundred Talent Plan[WST2020003]
WOS研究方向	Chemistry
WOS类目	Chemistry, Physical
WOS记录号	WOS:001238770400001
出版者	ACADEMIC PRESS INC ELSEVIER SCIENCE
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/186617
专题	中国科学院金属研究所
通讯作者	Wu, Tingting; Wang, Lei
作者单位	1.Qingdao Univ Sci & Technol, Coll Environm & Safety Engn, Key Lab Ecochem Engn, Int Sci & Technol Cooperat Base Ecochem Engn & Gre, Qingdao 266042, Peoples R China 2.Qingdao Univ Sci & Technol, Coll Chem Engn, Qingdao 266042, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China 4.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China 5.Natl Acad Sci Ukraine, V Bakul Inst Superhard Mat, UA-04074 Kiev, Ukraine
推荐引用方式 GB/T 7714	Li, Na,Chen, Yaping,Wu, Tingting,et al. Pore walls as high-way for efficient bulk charge transfer in porous SrTiO 3 single crystals boosting photocatalytic overall water splitting[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2024,668:484-491.
APA	Li, Na.,Chen, Yaping.,Wu, Tingting.,Li, Xiaojing.,Zhang, Shuting.,...&Wang, Lei.(2024).Pore walls as high-way for efficient bulk charge transfer in porous SrTiO 3 single crystals boosting photocatalytic overall water splitting.JOURNAL OF COLLOID AND INTERFACE SCIENCE,668,484-491.
MLA	Li, Na,et al."Pore walls as high-way for efficient bulk charge transfer in porous SrTiO 3 single crystals boosting photocatalytic overall water splitting".JOURNAL OF COLLOID AND INTERFACE SCIENCE 668(2024):484-491.