| In situ exsolution of silver nanoparticles on AgTaO3-SrTiO3 solid solutions as efficient plasmonic photocatalysts for water splitting | |
| Yu, Jinxing1,3; Zhang, Lei2; Qian, Jun2; Zhu, Zhirong3; Ni, Shuang4; Liu, Gang5,6; Xu, Xiaoxiang1,3 | |
| Corresponding Author | Qian, Jun(qianjun19@126.com) ; Zhu, Zhirong(zhuzhirong@tongji.edu.cn) ; Xu, Xiaoxiang(xxxu@tongji.edu.cn) |
| 2019-11-05 | |
| Source Publication | APPLIED CATALYSIS B-ENVIRONMENTAL
 |
| ISSN | 0926-3373 |
| Volume | 256Pages:9 |
| Abstract | 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. |
| Keyword | In situ exsolution Plasmonic silver Solid solution Photocatalyst Water splitting |
| Funding Organization | 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 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Chemistry ; Engineering |
| WOS Subject | Chemistry, Physical ; Engineering, Environmental ; Engineering, Chemical |
| WOS ID | WOS:000483451200032 |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/135199 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Qian, Jun; Zhu, Zhirong; Xu, Xiaoxiang |
| Affiliation | 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 |
| Recommended Citation 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. |
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