Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 7, Issue 10, Pages 5643-5649Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8ta10926e
Keywords
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Funding
- INST Mohali
- CSIR
- Department of Science and Technology, India (DST) [SR/NM/NT-06/2016]
- DST-CERI project [TMD/CERI/BEE/2016/082]
- Early Career Research Award (ECR) [ECR/2016/001469]
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In this study, we have demonstrated photocatalytic H-2 evolution by water splitting coupled with biomass derived 5-(hydroxymethyl) furfural (HMF) oxidation to a more valued platform chemical, 2,5-diformylfuran (DFF), under visible light using porous carbon nitride (SGCN) for the first time. Simultaneously, a H-2 production rate of 12 mol h(-1) m(-2) was obtained with a DFF yield of 13.8% with >99% selectivity after 6 h under visible light. The selectivity of DFF was maintained >99% even after longer runs (48 h) with an improved DFF yield of 38.4% and H-2 production rate of 36 mol h(-1) m(-2). In addition, a H-2 production rate of 6.2 mol h(-1) m(-2) with 0.15 light-to-fuel efficiency (LFE) and DFF (7.2% yield) were obtained under natural sunlight after 6 h. Thus, this study describes an effective way to utilize both photogenerated electrons and holes for simultaneous H-2 production by water splitting and biomass derived HMF oxidation to DFF, respectively, under natural sunlight.
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