A photo-excited electron transfer hyperchannel constructed in Pt-dispersed pyrimidine-modified carbon nitride for remarkably enhanced water-splitting photocatalytic activity
文献类型：期刊论文
| 作者 | Jin, Xixiong1; Zhang, Lingxia1; Fan, Xiangqian1; Tian, Jianjian1; Wang, Min1; Shi, Jianlin1 |
| 刊名 | APPLIED CATALYSIS B-ENVIRONMENTAL
 |
| 出版日期 | 2018 |
| 卷号 | 237页码:888 |
| 关键词 | Electron transfer Carbon nitride Copolymer Photocatalytic water-splitting Hydrogen evolution |
| ISSN号 | 0926-3373 |
| DOI | 10.1016/j.apcatb.2018.06.035 |
| 英文摘要 | Electron transfer kinetics plays a crucial role in water-splitting hydrogen evolution reaction, and accelerating the electron transfer while preventing charge recombination are one of the key factors in improving solar-fuel conversion. Here, we report the construction of a photo-excited electron transfer hyperchannel in Pt-dispersed pyrimidine-modified carbon nitride (PMCN) for remarkably enhanced water-splitting photocatalytic activity. The electrophilic pyrimidine groups were incorporated in polymeric carbon nitride (CN) to withdraw photo excited electrons upon illumination and in the meantime donate the electrons to the wherein anchored Pt particles, providing fast electron transfer hyperchannels across the catalyst interface, which greatly promoted the photo-excited electron/hole separation and prevented their recombination. As a result, Pt-anchored PMCN exhibited remarkably enhanced photocatalytic performance, with the highest H-2 evolution under visible light irradiation reaching 3279.7 mu mol h(-1) g(-1) and AQY% being 6% at 420 nm, 15.3 times higher than that of CN. The construction of electron transfer hyperchannel introduced a novel, facile and effective strategy to promote charge separation, presenting a new viewpoint for the rational design of photocatalysts to achieve improved solar-fuel conversion. |
| 学科主题 | Chemistry, Physical ; Engineering, Environmental ; Engineering, Chemical |
| WOS记录号 | WOS:000442973700091 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | We acknowledge financial supports from the National Key Basic Research Program of China (2013CB933200), National Natural Science Foundation of China (21177137). ; We acknowledge financial supports from the National Key Basic Research Program of China (2013CB933200), National Natural Science Foundation of China (21177137). |
| 源URL | [http://ir.sic.ac.cn/handle/331005/24622]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, 1295 Dingxi Rd, Shanghai 200050, Peoples R China 2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jin, Xixiong,Zhang, Lingxia,Fan, Xiangqian,et al. A photo-excited electron transfer hyperchannel constructed in Pt-dispersed pyrimidine-modified carbon nitride for remarkably enhanced water-splitting photocatalytic activity[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2018,237:888, 894. |
| APA | Jin, Xixiong,Zhang, Lingxia,Fan, Xiangqian,Tian, Jianjian,Wang, Min,&Shi, Jianlin.(2018).A photo-excited electron transfer hyperchannel constructed in Pt-dispersed pyrimidine-modified carbon nitride for remarkably enhanced water-splitting photocatalytic activity.APPLIED CATALYSIS B-ENVIRONMENTAL,237,888. |
| MLA | Jin, Xixiong,et al."A photo-excited electron transfer hyperchannel constructed in Pt-dispersed pyrimidine-modified carbon nitride for remarkably enhanced water-splitting photocatalytic activity".APPLIED CATALYSIS B-ENVIRONMENTAL 237(2018):888. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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。