Visible light–driven cascade carbon–carbon bond scission for organic transformations and plastics recycling
Significant efforts are devoted to developing artificial photosynthetic systems to produce fuels and chemicals in order to cope with the exacerbating energy and environmental crises in the world now. Nonetheless, the large‐scale reactions that are the focus of the artificial photosynthesis community...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Language: | English |
| Published: |
2019
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| Online Access: | https://hdl.handle.net/10356/105574 http://hdl.handle.net/10220/50355 |
| _version_ | 1826126652426420224 |
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| author | Gazi, Sarifuddin Đokić, Miloš Chin, Kek Foo Ng, Pei Rou Soo, Han Sen |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Gazi, Sarifuddin Đokić, Miloš Chin, Kek Foo Ng, Pei Rou Soo, Han Sen |
| author_sort | Gazi, Sarifuddin |
| collection | NTU |
| description | Significant efforts are devoted to developing artificial photosynthetic systems to produce fuels and chemicals in order to cope with the exacerbating energy and environmental crises in the world now. Nonetheless, the large‐scale reactions that are the focus of the artificial photosynthesis community, such as water splitting, are thus far not economically viable, owing to the existing, cheaper alternatives to the gaseous hydrogen and oxygen products. As a potential substitute for water oxidation, here, a unique, visible light–driven oxygenation of carboncarbon bonds for the selective transformation of 32 unactivated alcohols, mediated by a vanadium photocatalyst under ambient, atmospheric conditions is presented. Furthermore, since the initial alcohol products remain as substrates, an unprecedented photodriven cascade carboncarbon bond cleavage of macromolecules can be performed. Accordingly, hydroxyl‐terminated polymers such as polyethylene glycol, its block co‐polymer with polycaprolactone, and even the non‐biodegradable polyethylene can be repurposed into fuels and chemical feedstocks, such as formic acid and methyl formate. Thus, a distinctive approach is presented to integrate the benefits of photoredox catalysis into environmental remediation and artificial photosynthesis. |
| first_indexed | 2024-10-01T06:56:11Z |
| format | Journal Article |
| id | ntu-10356/105574 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:56:11Z |
| publishDate | 2019 |
| record_format | dspace |
| spelling | ntu-10356/1055742023-02-28T19:44:07Z Visible light–driven cascade carbon–carbon bond scission for organic transformations and plastics recycling Gazi, Sarifuddin Đokić, Miloš Chin, Kek Foo Ng, Pei Rou Soo, Han Sen School of Physical and Mathematical Sciences Photocatalysis Plastics Recycling Science::Chemistry Significant efforts are devoted to developing artificial photosynthetic systems to produce fuels and chemicals in order to cope with the exacerbating energy and environmental crises in the world now. Nonetheless, the large‐scale reactions that are the focus of the artificial photosynthesis community, such as water splitting, are thus far not economically viable, owing to the existing, cheaper alternatives to the gaseous hydrogen and oxygen products. As a potential substitute for water oxidation, here, a unique, visible light–driven oxygenation of carboncarbon bonds for the selective transformation of 32 unactivated alcohols, mediated by a vanadium photocatalyst under ambient, atmospheric conditions is presented. Furthermore, since the initial alcohol products remain as substrates, an unprecedented photodriven cascade carboncarbon bond cleavage of macromolecules can be performed. Accordingly, hydroxyl‐terminated polymers such as polyethylene glycol, its block co‐polymer with polycaprolactone, and even the non‐biodegradable polyethylene can be repurposed into fuels and chemical feedstocks, such as formic acid and methyl formate. Thus, a distinctive approach is presented to integrate the benefits of photoredox catalysis into environmental remediation and artificial photosynthesis. ASTAR (Agency for Sci., Tech. and Research, S’pore) MOE (Min. of Education, S’pore) Published version 2019-11-07T01:53:36Z 2019-12-06T21:53:46Z 2019-11-07T01:53:36Z 2019-12-06T21:53:46Z 2019 Journal Article Gazi, S., Đokić, M., Chin, K. F., Ng, P. R., & Soo, H. S. (2019). Visible light–driven cascade carbon–carbon bond scission for organic transformations and plastics recycling. Advanced Science, 1902020-. doi:10.1002/advs.201902020 https://hdl.handle.net/10356/105574 http://hdl.handle.net/10220/50355 10.1002/advs.201902020 en Advanced Science https://doi.org/10.21979/N9/JRQJCB © 2019 The Authors. Published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. 10 p. application/pdf |
| spellingShingle | Photocatalysis Plastics Recycling Science::Chemistry Gazi, Sarifuddin Đokić, Miloš Chin, Kek Foo Ng, Pei Rou Soo, Han Sen Visible light–driven cascade carbon–carbon bond scission for organic transformations and plastics recycling |
| title | Visible light–driven cascade carbon–carbon bond scission for organic transformations and plastics recycling |
| title_full | Visible light–driven cascade carbon–carbon bond scission for organic transformations and plastics recycling |
| title_fullStr | Visible light–driven cascade carbon–carbon bond scission for organic transformations and plastics recycling |
| title_full_unstemmed | Visible light–driven cascade carbon–carbon bond scission for organic transformations and plastics recycling |
| title_short | Visible light–driven cascade carbon–carbon bond scission for organic transformations and plastics recycling |
| title_sort | visible light driven cascade carbon carbon bond scission for organic transformations and plastics recycling |
| topic | Photocatalysis Plastics Recycling Science::Chemistry |
| url | https://hdl.handle.net/10356/105574 http://hdl.handle.net/10220/50355 |
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