| Enhanced Electron Transfer from the Excited Eosin Y to mpg-C3N4 for Highly Efficient Hydrogen Evolution under 550 nm Irradiation | |
| Department | OSSO国家重点实验室 |
Min SX(敏世雄)1,2 ; Lv GX(吕功煊)1; Lv GX(吕功煊)
| |
| The second department | erc国家工程研究中心 |
| 2012 | |
| Source Publication | The Journal of Physical Chemistry C
 |
| ISSN | 1932-7447 |
| Volume | 116Issue:37Pages:19644-19652 |
| Abstract | Graphitic carbon nitride (g-C3N4) is a novel and stable metal-free photocatalyst that can generate H2 from water under visible light irradiation, but its activity is significantly limited due to the insufficient light absorption in the solar spectrum (weak absorption in the wavelength longer than 460 nm). In this paper, we demonstrate that the photoresponse of the mesoporous g-C3N4 (mpg-C3N4) can be greatly extended up to nearly 600 nm by sensitization with Eosin Y (EY). This sensitization photocatalyst demonstrates high and rather stable photocatalytic activity for H2 evolution under visible light irradiation, especially in the longer wavelength regions (450–600 nm). The apparent quantum efficiency (AQE) of 19.4% under 550 nm irradiation has been obtained. These results indicate that efficient electron transfer between excited EY molecules and mpg-C3N4 is achieved. The mpg-C3N4 with high surface area and nanoporous structure can greatly facilitate EY molecules assembly on the surface, thus promoting the activity via improved light harvesting. |
| Subject Area | 物理化学与绿色催化 |
| DOI | 10.1021/jp304022f |
| Funding Organization | the National Science Foundation of China (21173242);973 Program and 863 Program of Department of Sciences and Technology of China (Grant Nos. 2007CB613305;2009CB220003;2009AA05Z117) |
| Indexed By | SCI |
| If | 4.814 |
| Language | 英语 |
| Funding Project | 环境催化与清洁能源研究组;环境催化与氢能源研究组 |
| compositor | 第一作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/3828 |
| Collection | 羰基合成与选择氧化国家重点实验室（OSSO） 精细石油化工中间体国家工程研究中心（ERC） |
| Corresponding Author | Lv GX(吕功煊) |
| Affiliation | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 10080, Peoples R China |
| Recommended Citation GB/T 7714 | Min SX,Lv GX,Lv GX. Enhanced Electron Transfer from the Excited Eosin Y to mpg-C3N4 for Highly Efficient Hydrogen Evolution under 550 nm Irradiation[J]. The Journal of Physical Chemistry C,2012,116(37):19644-19652. |
| APA | Min SX,Lv GX,&吕功煊.(2012).Enhanced Electron Transfer from the Excited Eosin Y to mpg-C3N4 for Highly Efficient Hydrogen Evolution under 550 nm Irradiation.The Journal of Physical Chemistry C,116(37),19644-19652. |
| MLA | Min SX,et al."Enhanced Electron Transfer from the Excited Eosin Y to mpg-C3N4 for Highly Efficient Hydrogen Evolution under 550 nm Irradiation".The Journal of Physical Chemistry C 116.37(2012):19644-19652. |
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| File Name/Size | DocType | Version | Access | License | ||
| 49.J. Phys. Chem. C,（494KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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