Distinguishing Localized Surface Plasmon Resonance and Schottky Junction of Au-Cu2O Composites by Their Molecular Spacer Dependence | |
Department | OSSO国家重点实验室 |
Jiang DH(蒋登辉)1,4; Zhou W(周伟)3; Zhong XH(钟新华)3; Zhang YG(张跃刚)2; Li XH(李鑫恒)1,4; Li XH(李鑫恒) | |
2014 | |
Source Publication | ACS Applied Materials.& Interfaces |
ISSN | 1944-8244 |
Volume | 6Issue:14Pages:10958-10962 |
Abstract | The surface plasmon resonance (SPR) and Schottky effects are important photocatalytic activity boosters in metallic cocatalyst/photocatalyst systems, but it is difficult to differentiate them. In this report, we design a simple method to distinguish the two effects by utilizing a distancetunable self-assembled monolayer (SAM) in a gold (Au)−Cu2O composite in conjunction with UV and visible-light sources, by which we had only the SPR or Schottky effect identified in the visible or UV light, respectively. Cysteine (cys) and mercaptoundecanoic acid (MUA) SAMs as linkers were used respectively for making Au−cys−Cu2O and Au−MUA−Cu2O composites. Au−citrate−Cu2O as a mild linker was also synthesized. Under UV-light irradiation, Au−Cu2O showed only the Schottky effect, while Au−MUA−Cu2O and Au−cys−Cu2O showed neither of the two effects. Under visible-light irradiation, Au−MUA−Cu2O and Au−cys−Cu2O showed clearly only the localized SPR (LSPR) effect, while Au−Cu2O demonstrated the coexistence of the two effects, which was further confirmed by their LSPR enhancement factor. |
Keyword | Lspr Schottky Effect Cuprous Oxide Self-assembled Monolayer Photocatalytic Activity |
Subject Area | 物理化学与绿色催化 |
DOI | 10.1021/am5023978 |
Funding Organization | the OSSO State Key Laboratory Project O80117MKJZ by the Ministry of Science and Technology of China |
Indexed By | SCI |
If | 6.723 |
Language | 英语 |
Funding Project | 多相选择氧化课题组 |
compositor | 第四作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/7074 |
Collection | 羰基合成与选择氧化国家重点实验室(OSSO) |
Corresponding Author | Li XH(李鑫恒) |
Affiliation | 1.Chinese Acad Sci, Lab Nanocatalyt Mat & Technol, Suzhou 215123, Peoples R China 2.Chinese Acad Sci, I Lab, Suzhou Inst Nanotech & Nanobion, Suzhou 215123, Peoples R China 3.E China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China 4.Chinese Acad Sci, State Key Lab Oxo Synth & Select Oxidat, Lanzhou Inst Chem Phys, Lanzhou 730000, Peoples R China |
Recommended Citation GB/T 7714 | Jiang DH,Zhou W,Zhong XH,et al. Distinguishing Localized Surface Plasmon Resonance and Schottky Junction of Au-Cu2O Composites by Their Molecular Spacer Dependence[J]. ACS Applied Materials.& Interfaces,2014,6(14):10958-10962. |
APA | Jiang DH,Zhou W,Zhong XH,Zhang YG,Li XH,&李鑫恒.(2014).Distinguishing Localized Surface Plasmon Resonance and Schottky Junction of Au-Cu2O Composites by Their Molecular Spacer Dependence.ACS Applied Materials.& Interfaces,6(14),10958-10962. |
MLA | Jiang DH,et al."Distinguishing Localized Surface Plasmon Resonance and Schottky Junction of Au-Cu2O Composites by Their Molecular Spacer Dependence".ACS Applied Materials.& Interfaces 6.14(2014):10958-10962. |
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