Issue 21, 2022

Photo-splitting xylose and xylan to xylonic acid and carbon monoxide

Abstract

Simultaneous direct production of fuels and chemicals via photocatalytic biomass conversion is an effective strategy to achieve the carbon-neutral goal but no studies on the co-production of CO and xylonic acid have been reported. Here, an efficient CIS/GO@3D-OMA photocatalyst of CdIn2S4 (CIS) anchored on graphene oxide (GO) nanosheets in a three-dimensional ordered mesoporous aerogel was prepared and successfully used in the co-generation of CO and xylonic acid. Experimental results showed that CIS/GO@3D-OMA-3 has broad light absorption, high charge density, and fast charge space separation. Correspondingly, the CO and xylonic acid yield achieved 1213.88 μmol g−1 h−1 and 76.76% in the xylose system, respectively. Interestingly, the system is also applicable to xylan (CO: 187.20 μmol g−1 h−1; xylonic acid: 0.2 g gxylan−1). All h+, ˙OH, 1O2 and ˙O2 were conductive to CO and xylonic acid production, in which h+ played a primary role. This study provides a fresh perspective for biomass utilization.

Graphical abstract: Photo-splitting xylose and xylan to xylonic acid and carbon monoxide

Supplementary files

Article information

Article type
Paper
Submitted
05 Aug 2022
Accepted
24 Sep 2022
First published
29 Sep 2022

Green Chem., 2022,24, 8367-8376

Photo-splitting xylose and xylan to xylonic acid and carbon monoxide

J. Zhang, K. Liu, S. Sun, R. Sun and J. Ma, Green Chem., 2022, 24, 8367 DOI: 10.1039/D2GC02909J

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