Pyrene-functionalized polymeric carbon nitride with promoted aqueous–organic biphasic photocatalytic CO2 reduction
We have demonstrated a simple copolymerization process to covalently graft pyrene-functional groups on the polymeric carbon nitride (PCN) surface. The resulting pyrene functionalized carbon nitride (Py-PCN) exhibits unique biphasic photocatalytic activities, which enable efficient CO2 photoreduction...
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| 格式: | Journal Article |
| 语言: | English |
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2020
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| 在线阅读: | https://hdl.handle.net/10356/138092 |
| _version_ | 1826110223959457792 |
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| author | Gong, Xuezhong Yu, Sijia Guan, Meili Zhu, Xianglin Xue, Can |
| author2 | School of Materials Science & Engineering |
| author_facet | School of Materials Science & Engineering Gong, Xuezhong Yu, Sijia Guan, Meili Zhu, Xianglin Xue, Can |
| author_sort | Gong, Xuezhong |
| collection | NTU |
| description | We have demonstrated a simple copolymerization process to covalently graft pyrene-functional groups on the polymeric carbon nitride (PCN) surface. The resulting pyrene functionalized carbon nitride (Py-PCN) exhibits unique biphasic photocatalytic activities, which enable efficient CO2 photoreduction in aqueous solution with simultaneous alkene (C[double bond, length as m-dash]C) oxidation in the organic phase. The great biphasic activities are attributed to the increased lipophilicity from surface pyrene-functional groups, which allows the hydrophobic alkene molecules to readily approach the PCN surface and react with the hydroxyl radicals created from –OH oxidation by photogenerated holes. In this way, the alkene compounds indirectly consume the photo-holes from excited Py-PCN, promoting the overall photocatalytic process. Our study provides a new strategy for solar fuel production with simultaneous organic synthesis by the oxidation power of photo-holes on amphiphilic metal-free semiconductors. |
| first_indexed | 2024-10-01T02:30:53Z |
| format | Journal Article |
| id | ntu-10356/138092 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:30:53Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1380922023-07-14T15:58:10Z Pyrene-functionalized polymeric carbon nitride with promoted aqueous–organic biphasic photocatalytic CO2 reduction Gong, Xuezhong Yu, Sijia Guan, Meili Zhu, Xianglin Xue, Can School of Materials Science & Engineering Engineering::Materials Polymeric Carbon Nitride Biphasic Photocatalytic We have demonstrated a simple copolymerization process to covalently graft pyrene-functional groups on the polymeric carbon nitride (PCN) surface. The resulting pyrene functionalized carbon nitride (Py-PCN) exhibits unique biphasic photocatalytic activities, which enable efficient CO2 photoreduction in aqueous solution with simultaneous alkene (C[double bond, length as m-dash]C) oxidation in the organic phase. The great biphasic activities are attributed to the increased lipophilicity from surface pyrene-functional groups, which allows the hydrophobic alkene molecules to readily approach the PCN surface and react with the hydroxyl radicals created from –OH oxidation by photogenerated holes. In this way, the alkene compounds indirectly consume the photo-holes from excited Py-PCN, promoting the overall photocatalytic process. Our study provides a new strategy for solar fuel production with simultaneous organic synthesis by the oxidation power of photo-holes on amphiphilic metal-free semiconductors. MOE (Min. of Education, S’pore) Accepted version 2020-04-24T02:07:31Z 2020-04-24T02:07:31Z 2018 Journal Article Gong, X., Yu, S., Guan, M., Zhu, X., & Xue, C. (2019). Pyrene-functionalized polymeric carbon nitride with promoted aqueous–organic biphasic photocatalytic CO 2 reduction. Journal of materials chemistry A, 7(13), 7373-7379. doi:10.1039/C8TA09801H 2050-7488 https://hdl.handle.net/10356/138092 10.1039/C8TA09801H 13 7 7373 7379 en Journal of Materials Chemistry A https://doi.org/10.21979/N9/R0PTA3 © 2019 The Royal Society of Chemistry. All rights reserved. This paper was published in Journal of Materials Chemistry A and is made available with permission of The Royal Society of Chemistry. application/pdf |
| spellingShingle | Engineering::Materials Polymeric Carbon Nitride Biphasic Photocatalytic Gong, Xuezhong Yu, Sijia Guan, Meili Zhu, Xianglin Xue, Can Pyrene-functionalized polymeric carbon nitride with promoted aqueous–organic biphasic photocatalytic CO2 reduction |
| title | Pyrene-functionalized polymeric carbon nitride with promoted aqueous–organic biphasic photocatalytic CO2 reduction |
| title_full | Pyrene-functionalized polymeric carbon nitride with promoted aqueous–organic biphasic photocatalytic CO2 reduction |
| title_fullStr | Pyrene-functionalized polymeric carbon nitride with promoted aqueous–organic biphasic photocatalytic CO2 reduction |
| title_full_unstemmed | Pyrene-functionalized polymeric carbon nitride with promoted aqueous–organic biphasic photocatalytic CO2 reduction |
| title_short | Pyrene-functionalized polymeric carbon nitride with promoted aqueous–organic biphasic photocatalytic CO2 reduction |
| title_sort | pyrene functionalized polymeric carbon nitride with promoted aqueous organic biphasic photocatalytic co2 reduction |
| topic | Engineering::Materials Polymeric Carbon Nitride Biphasic Photocatalytic |
| url | https://hdl.handle.net/10356/138092 |
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