Selective oxidation of glucose to gluconic acid and glucaric acid with chlorin e6 modified carbon nitride as metal-free photocatalyst

Bai, Xinyu ¹Hou, Qidong ¹Qian, Hengli ¹Nie, Yifan ¹Xia, Tianliang ¹Lai, Ruite ¹Yu, Guanjie ¹Rehman, Mian Laiq Ur ¹Xie, Haijiao ²Ju, Meiting¹

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作者信息

1. Nankai Univ
2. Hangzhou Yanqu Informat Technol Co Ltd
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Abstract

Photocatalysis has exhibited huge potential in many reactions, but the design of metal-free photocatalytic material for selective upgrading of biomass is rarely achieved. Here, we report that the metal-free photocatalyst consisted of nitrogen-deficient carbon nitride (BNCN) and chlorin e6 (Ce6) can efficiently and selectively oxidize glucose into gluconic acid and glucaric acid. Introducing nitrogen defects could significantly enhance the optical absorption and modulate the band structure. In addition, the combination of Ce6 with BNCN further improve the optical absorption property and promote effective separation of photon-generated carriers. As expected, the resultant Ce6@BNCN catalyst gave a total selectivity of gluconic acid, glucaric acid and arabinose as high as 70.9% at glucose conversion up to 62.3%, as is superior to previously reported photocatalytic systems. The mechanism for the enhancement of catalytic performance and the reaction pathway were revealed by experimental studies combined with DFT calculations.

Key words

Metal-free/Selective oxidation/Glucose/Photocatalysis/Carbon nitride/HYDROGEN EVOLUTION/H-2 PRODUCTION/CONVERSION/CHEMICALS/BIOMASS/WATER/ENHANCEMENT/TRANSFORMATIONS/PHTHALOCYANINE/DEGRADATION

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出版年

2022

Applied Catalysis

ISSN：0926-3373

被引量31

参考文献量73

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