Three-dimensional ordered macroporous nano-architecture and its enhancing effects on Raman detection sensitivity for Eosin Y molecules | |
Department | OSSO国家重点实验室 |
Zhang WY(张文妍)1; Jiang, Ziqiu1,2; Hao, Lingyun1; Lu GX(吕功煊)4; Ni, Yaru2,3; Lu, Chunhua2,3; Xu, Zhongzi2,3; Zhang WY(张文妍) | |
2017 | |
Source Publication | Materials & Design |
ISSN | 0264-1275 |
Volume | 119Pages:456-463 |
Abstract | In this work, three-dimensional ordered macroporous (3DOM) TiO2 was designed by assembling Ag nano-particles (NPs) into the network of 3DOM TiO2 to form a 3DOM composite nano-architecture, the 3DOM-TiO2@Ag. The designed 3DOM-TiO2@Ag nano-architecture effectively amplified the Raman signal of Eosin Y (EY), owing to its interconnected 3DOM network, appropriate energy matching between EY and the 3DOM nano-architecture, and the surface plasmon resonances and optical antenna effect of Ag NPs. Firstly, interconnected 3DOM network improved the adsorption ability of 3DOM-TiO2@Ag for EY molecules as its interconnected 3DOM networks offered high surface area and porous volume which can drive EY solution into it by large capillarity forces. Secondly, energy matching between EY molecules and each components of 3DOM-TiO2@Ag promoted the photo-generated electrons to transfer from excited EY molecules through the Ag/TiO2 heterojunction and inject into the Ag NPs to improve its surface electron density. Surface plasmon resonances of the Ag NPs also contributed to amplifying the Raman signals of the EY molecules. Detection limit of the 3DOM-TiO2@Ag substrate could 10− 12 M for EY molecules. In addition, the designed 3DOM substrate exhibited favorable stability, reproducibility and universality for detecting EY and other with structural similar molecules. |
Keyword | Sers Three-dimensional Macroporous Titanium |
Subject Area | 物理化学与绿色催化 |
DOI | 10.1016/j.matdes.2017.01.090 |
Funding Organization | NSF of China (21433007;21673262);Jiangsu Provincial Natural Science Fund for Youths (Grant No. BK20130095);973 Programs of Department of Sciences and Technology of China (2013CB632404);Prospective Joint Research Project of Jiangsu Province (No. 2014016);Innovation Foundation for Scientific Research (2014-jit-n-06);Key University Science Research Project of Jiangsu Province (No·15KJB430022);Postdoctoral Science Foundation of China (146819) |
Indexed By | SCI |
If | 4.364 |
Language | 英语 |
Funding Project | 环境催化与氢能研究组 |
compositor | 第四作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/21738 |
Collection | 羰基合成与选择氧化国家重点实验室(OSSO) |
Corresponding Author | Zhang WY(张文妍) |
Affiliation | 1.Jingling Inst Technol, Coll Mat Engn, Nanjing, Jiangsu, Peoples R China 2.Nanjing Tech Univ, Jiangsu Collaborat Innovat Ctr Adv Inorgan Funct, Nanjing, Jiangsu, Peoples R China 3.Nanjing Tech Univ, Coll Mat Sci & Engn, State Key Lab Mat Oriented Chem Engn, Nanjing, Jiangsu, Peoples R China 4.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou, Peoples R China |
Recommended Citation GB/T 7714 | Zhang WY,Jiang, Ziqiu,Hao, Lingyun,et al. Three-dimensional ordered macroporous nano-architecture and its enhancing effects on Raman detection sensitivity for Eosin Y molecules[J]. Materials & Design,2017,119:456-463. |
APA | Zhang WY.,Jiang, Ziqiu.,Hao, Lingyun.,Lu GX.,Ni, Yaru.,...&张文妍.(2017).Three-dimensional ordered macroporous nano-architecture and its enhancing effects on Raman detection sensitivity for Eosin Y molecules.Materials & Design,119,456-463. |
MLA | Zhang WY,et al."Three-dimensional ordered macroporous nano-architecture and its enhancing effects on Raman detection sensitivity for Eosin Y molecules".Materials & Design 119(2017):456-463. |
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