Xiong, Lunqiao;
Yu, Zhounan;
Cao, Hongchen;
Guan, Weixiang;
Su, Yang;
Pan, Xiaoli;
Zhang, Leilei;
... Tang, Junwang; + view all
(2024)
Converting Glycerol into Valuable Trioses by Cu^{δ+}-Single-Atom-Decorated WO_{3} under Visible Light.
Angewandte Chemie International Edition
, Article e202318461. 10.1002/anie.202318461.
(In press).
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Abstract
Photocatalytic selective oxidation under visible light presents a promising approach for the sustainable transformation of biomass-derived wastes. However, achieving both high conversion and excellent selectivity poses a significant challenge. In this study, two valuable trioses, glyceraldehyde and dihydroxyacetone, are produced from glycerol over Cuδ+ -decorated WO3 photocatalyst in the presence of H2 O2 . The photocatalyst exhibits a remarkable five-fold increase in the conversion rate (3.81 mmol ⋅ g-1 ⋅ h-1 ) while maintaining a high selectivity towards two trioses (46.4 % to glyceraldehyde and 32.9 % to dihydroxyacetone). Through a comprehensive analysis involving X-ray photoelectron spectroscopy measurements with and without light irradiation, electron spin resonance spectroscopy, and isotopic analysis, the critical role of Cu+ species has been explored as efficient hole acceptors. These species facilitate charge transfer, promoting glycerol oxidation by photoholes, followed by coupling with OH- , which are subsequently dehydrated to yield the desired glyceraldehyde and dihydroxyacetone.
| Type: | Article |
|---|---|
| Title: | Converting Glycerol into Valuable Trioses by Cu^{δ+}-Single-Atom-Decorated WO_{3} under Visible Light |
| Location: | Germany |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1002/anie.202318461 |
| Publisher version: | http://dx.doi.org/10.1002/anie.202318461 |
| Language: | English |
| Additional information: | © 2024 The Authors. Angewandte Chemie International Edition published by Wiley-VCH GmbH. This is an open access article under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/). |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10187530 |
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