热门
Enhanced Electron Transfer from the Excited Eosin Y to mpg-C3N4 for Highly Efficient Hydrogen Evolution under 550 nm Irradiation
文献类型：期刊论文
| 作者 | Min SX(敏世雄)1,2 ; Lv GX(吕功煊)1
|
| 刊名 | The Journal of Physical Chemistry C
 |
| 出版日期 | 2012 |
| 卷号 | 116期号:37页码:19644-19652 |
| ISSN号 | 1932-7447 |
| 通讯作者 | 吕功煊 |
| 英文摘要 | 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. |
| 学科主题 | 物理化学与绿色催化 |
| 收录类别 | SCI |
| 资助信息 | 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) |
| 语种 | 英语 |
| WOS记录号 | WOS:000308855600005 |
| 公开日期 | 2013-10-11 |
| 源URL | [http://210.77.64.217/handle/362003/3828]  |
| 专题 | 兰州化学物理研究所_OSSO国家重点实验室 兰州化学物理研究所_ERC国家工程研究中心 |
| 作者单位 | 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 |
| 推荐引用方式 GB/T 7714 | Min SX,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.(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. |
入库方式： OAI收割
来源：兰州化学物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。