In situ exsolution of silver nanoparticles on AgTaO3-SrTiO3 solid solutions as efficient plasmonic photocatalysts for water splitting

doi:10.1016/j.apcatb.2019.117818

IMR OpenIR

	In situ exsolution of silver nanoparticles on AgTaO3-SrTiO3 solid solutions as efficient plasmonic photocatalysts for water splitting
	Yu, Jinxing 1,3; Zhang, Lei 2; Qian, Jun 2; Zhu, Zhirong 3; Ni, Shuang 4; Liu, Gang 5,6; Xu, Xiaoxiang 1,3
通讯作者	Qian, Jun(qianjun19@126.com) ; Zhu, Zhirong(zhuzhirong@tongji.edu.cn) ; Xu, Xiaoxiang(xxxu@tongji.edu.cn)
	2019-11-05
发表期刊	APPLIED CATALYSIS B-ENVIRONMENTAL
ISSN	0926-3373
卷号	256 页码:9
摘要	Starting from two wide band gap semiconductors AgTaO3 and SrTiO3, we managed to reduce the band gap by forming their solid solutions, i.e. (AgTaO3)(1-x)(SrTiO3)(x) (0.0 <= x <= 1.0). These solid solutions all adopt cubic perovskite structure similar to SrTiO3 and high temperature phase of AgTaO3, suggesting that SrTiO3 is helpful to stabilize AgTaO3 in its high temperature cubic phase. Substantial improvements over photocatalytic hydrogen production were realized in these solid solutions which clearly outperform their parent compounds AgTaO3 and SrTiO3. In-situ exolution of silver nanoparticles at the surface of solid solutions (x = 0.2) substantially strengthen the visible light absorption due to localized surface plasmons of these silver nanoparticles. This contributes to further improvements on both photocatalytic hydrogen and oxygen production under visible light illumination (lambda >= 400 nm). Apparent quantum efficiency as high as (similar to)2.02% and (similar to)0.11% was achieved at solid solutions (x = 0.2) decorated with silver nanoparticles for full range (lambda >= 250 nm) and visible light (lambda >= 400 nm) illumination respectively. Photoelectrochemical analysis suggests that solid solutions own a better charge separation conditions than their parent compounds. Furthermore, the band edge positions of solid solutions (x = 0.2) lie approximately in the middle between AgTaO3 and SrTiO3, being ideal for solar water splitting reactions.
关键词	In situ exsolution Plasmonic silver Solid solution Photocatalyst Water splitting
资助者	National Natural Science Foundation of China ; Natural Science Foundation of Shanghai ; Recruitment Program of Global Youth Experts (1000 plan) ; Shanghai Science and Technology Commission ; Fundamental Research Funds for the Central Universities ; Laboratory of Precision Manufacturing Technology, China Academy of Engineering Physics
DOI	10.1016/j.apcatb.2019.117818
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[21401142] ; National Natural Science Foundation of China[51825204] ; Natural Science Foundation of Shanghai[19ZR1459200] ; Recruitment Program of Global Youth Experts (1000 plan) ; Shanghai Science and Technology Commission[14DZ2261100] ; Fundamental Research Funds for the Central Universities ; Laboratory of Precision Manufacturing Technology, China Academy of Engineering Physics[ZD17006] ; Laboratory of Precision Manufacturing Technology, China Academy of Engineering Physics[ZZ16002]
WOS研究方向	Chemistry ; Engineering
WOS类目	Chemistry, Physical ; Engineering, Environmental ; Engineering, Chemical
WOS记录号	WOS:000483451200032
出版者	ELSEVIER
引用统计	被引频次：42[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/321006/135199
专题	中国科学院金属研究所
通讯作者	Qian, Jun; Zhu, Zhirong; Xu, Xiaoxiang
作者单位	1.Tongji Univ, Putuo Peoples Hosp, Clin & Cent Lab, 1291 Jiangning Rd, Shanghai 200060, Peoples R China 2.Tongji Univ, Sch Med, Tongji Hosp, Dept Neurosurg, 389 Xincun Rd, Shanghai 200065, Peoples R China 3.Tongji Univ, Sch Chem Sci & Engn, Shanghai Key Lab Chem Assessment & Sustainabil, 1239 Siping Rd, Shanghai 200092, Peoples R China 4.China Acad Engn Phys, Laser Fus Res Ctr, Sci & Technol Plasma Phys Lab, Mianyang 621900, Sichuan, Peoples R China 5.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 6.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Yu, Jinxing,Zhang, Lei,Qian, Jun,et al. In situ exsolution of silver nanoparticles on AgTaO3-SrTiO3 solid solutions as efficient plasmonic photocatalysts for water splitting[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2019,256:9.
APA	Yu, Jinxing.,Zhang, Lei.,Qian, Jun.,Zhu, Zhirong.,Ni, Shuang.,...&Xu, Xiaoxiang.(2019).In situ exsolution of silver nanoparticles on AgTaO3-SrTiO3 solid solutions as efficient plasmonic photocatalysts for water splitting.APPLIED CATALYSIS B-ENVIRONMENTAL,256,9.
MLA	Yu, Jinxing,et al."In situ exsolution of silver nanoparticles on AgTaO3-SrTiO3 solid solutions as efficient plasmonic photocatalysts for water splitting".APPLIED CATALYSIS B-ENVIRONMENTAL 256(2019):9.