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

CORC > 金属研究所 > 中国科学院金属研究所

	In situ exsolution of silver nanoparticles on AgTaO3-SrTiO3 solid solutions as efficient plasmonic photocatalysts for water splitting
	Yu, Jinxing 1,2; Zhang, Lei 3; Qian, Jun 3; Zhu, Zhirong 1; Ni, Shuang 4; Liu, Gang 5,6; Xu, Xiaoxiang 1,2
刊名	APPLIED CATALYSIS B-ENVIRONMENTAL
	2019-11-05
卷号	256 页码:9
关键词	In situ exsolution Plasmonic silver Solid solution Photocatalyst Water splitting
ISSN号	0926-3373
DOI	10.1016/j.apcatb.2019.117818
通讯作者	Qian, Jun(qianjun19@126.com) ; Zhu, Zhirong(zhuzhirong@tongji.edu.cn) ; Xu, Xiaoxiang(xxxu@tongji.edu.cn)
英文摘要	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.
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
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000483451200032
资助机构	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
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/135198]
专题	金属研究所_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, Sch Chem Sci & Engn, Shanghai Key Lab Chem Assessment & Sustainabil, 1239 Siping Rd, Shanghai 200092, Peoples R China 2.Tongji Univ, Putuo Peoples Hosp, Clin & Cent Lab, 1291 Jiangning Rd, Shanghai 200060, Peoples R China 3.Tongji Univ, Sch Med, Tongji Hosp, Dept Neurosurg, 389 Xincun Rd, Shanghai 200065, 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.