Alkaline modified g-C3N4 photocatalyst for high selective oxide coupling of benzyl alcohol to benzoin
文献类型：期刊论文
| 作者 | Sun, Xiang1; Jiang, Dong; Zhang, Ling; Wang, Wenzhong |
| 刊名 | APPLIED CATALYSIS B-ENVIRONMENTAL
 |
| 出版日期 | 2018 |
| 卷号 | 220页码:553 |
| 关键词 | C-C coupling Photocatalysis g-C3N4 Alkali modification Benzoin |
| ISSN号 | 0926-3373 |
| DOI | 10.1016/j.apcatb.2017.08.057 |
| 英文摘要 | Benzoin is an important feedstock with high additional value for its extensive use in chemical industry. Benzoin condensation characterized by C-C coupling between benzaldehyde requires the use of nucleophilic catalysts including cyanide or N-heterocyclic carbene and is restricted to organic medium such as MeCN, diethyl ether, etc. Construction of efficient and non-toxic catalysts for benzoin synthesis still remains a challenge. Herein, highly selective (97%) benzoin synthesis from benzyl alcohol was achieved over potassium modified g-C3N4 via light-driven tandem selective oxidation and C-C coupling. The outstanding performance was attributed to alkali modifications on the electronic structure and surface chemical environment of g-C3N4.K+ intercalation not only facilitated the light harvesting as well as the transport of charge carriers, but also induced surface deprotonation of g-C3N4 and thus remarkable nucleophilicity for prompting the C-C coupling reactions. This work sheds light on the design of earth-abundant inorganic photocatalysts for C-C coupling reactions such as the green synthesis of benzoin under ambient conditions. |
| 学科主题 | Chemistry, Physical ; Engineering, Environmental ; Engineering, Chemical |
| WOS记录号 | WOS:000412957200054 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | We acknowledge the financial support from the 973 Program (2013CB933200) and National Natural Science Foundation of China (51472260) ; We acknowledge the financial support from the 973 Program (2013CB933200) and National Natural Science Foundation of China (51472260) |
| 源URL | [http://ir.sic.ac.cn/handle/331005/24616]  |
| 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, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Xiang,Jiang, Dong,Zhang, Ling,et al. Alkaline modified g-C3N4 photocatalyst for high selective oxide coupling of benzyl alcohol to benzoin[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2018,220:553, 560. |
| APA | Sun, Xiang,Jiang, Dong,Zhang, Ling,&Wang, Wenzhong.(2018).Alkaline modified g-C3N4 photocatalyst for high selective oxide coupling of benzyl alcohol to benzoin.APPLIED CATALYSIS B-ENVIRONMENTAL,220,553. |
| MLA | Sun, Xiang,et al."Alkaline modified g-C3N4 photocatalyst for high selective oxide coupling of benzyl alcohol to benzoin".APPLIED CATALYSIS B-ENVIRONMENTAL 220(2018):553. |
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。