Article: Interfacial engineering by creating Cu-based ternary heterostructures on C₃N₄ tubes towards enhanced photocatalytic oxidative coupling of benzylamines
RSC advances. 2020 July 28, v. 10, no. 47
2020
Abstract: Benzylamine coupling is a very important reaction for the synthesis of imine but still faces many challenges. Herein, we present a highly effective strategy towards the coupling reaction by using environmentally friendly catalysts. These catalysts are ... ...
| Abstract | Benzylamine coupling is a very important reaction for the synthesis of imine but still faces many challenges. Herein, we present a highly effective strategy towards the coupling reaction by using environmentally friendly catalysts. These catalysts are composed of Cu/Cu₂O/Cu₃N heterostructures supported by C₃N₄ tubes and the composites were synthesized by one-step hydrothermal treatment followed by calcination. Cu₂O, Cu₃N, and C₃N₄ all are responsive to visible light and the heterojunction formed can greatly enhance the charge separation. When used as photocatalysts for oxidative self-coupling of benzylamine at a low temperature of 323 K in air, Cu/Cu₂O/Cu₃N/C₃N₄ was able to give conversion and selectivity values of up to 99% and 98%, respectively. The high efficiency of the catalysts is attributable to their ability to generate large quantities of free radicals (such as ·OH and ·O₂⁻) under visible-light irradiation. |
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| Keywords | air ; benzylamines ; hot water treatment ; imines ; irradiation ; light ; photocatalysis ; photocatalysts ; temperature |
| Language | English |
| Dates of publication | 2020-0728 |
| Size | p. 28059-28065. |
| Publishing place | The Royal Society of Chemistry |
| Document type | Article |
| Note | NAL-AP-2-clean |
| ISSN | 2046-2069 |
| DOI | 10.1039/d0ra03164j |
| Database | NAL-Catalogue (AGRICOLA) |
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