Heterogeneous photocatalyzed acceptorless dehydrogenation of 5-hydroxymethylfurfural upon visible-light illumination,Green Chemistry

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Heterogeneous photocatalyzed acceptorless dehydrogenation of 5-hydroxymethylfurfural upon visible-light illumination
Green Chemistry ( IF 9.3 ) Pub Date : 2021-07-30 , DOI: 10.1039/d1gc01286j
Wanying Liang _{1,

2} , Rui Zhu _{1,

2} , Xinglong Li _{1,

2} , Jin Deng _{1,

2} , Yao Fu _{1,

2}

Affiliation

Herein we reported a catalytic strategy for the photocatalytic dehydrogenation of biomass-based 5-hydroxymethylfurfural (HMF) to 2,5-diformylfuran (DFF) upon visible-light illumination. The developed method could afford complete conversion and high selectivity of DFF without any oxidizing agent or additive or any conventional hydrogen acceptor. Graphitic carbon nitride (CN) modified with non-noble metals was used as the photocatalyst. The visible-light-driven CN possessed a suitable energy band structure, which could provide feasible redox potential for the conversion of HMF into DFF. The non-noble metal co-catalyst could significantly improve the separation and transfer efficiencies of the photogenerated charge carriers of the CN. Thus, our catalysts exhibited high photocatalytic performance for the dehydrogenation of HMF into DFF. Moreover, the dehydrogenation mechanism on the photocatalyst was studied through the control experiments and the characterization of catalysts.

中文翻译：

可见光下多相光催化 5-羟甲基糠醛无受体脱氢

在此，我们报道了一种在可见光照射下将基于生物质的 5-羟甲基糠醛 (HMF) 光催化脱氢为 2,5-二甲酰基呋喃 (DFF) 的催化策略。所开发的方法无需任何氧化剂或添加剂或任何常规的氢受体即可实现 DFF 的完全转化和高选择性。用非贵金属改性的石墨氮化碳（CN）用作光催化剂。可见光驱动的 CN 具有合适的能带结构，可为 HMF 转化为 DFF 提供可行的氧化还原电位。非贵金属助催化剂可以显着提高 CN 光生载流子的分离和转移效率。因此，我们的催化剂对 HMF 脱氢成 DFF 表现出很高的光催化性能。而且，

更新日期：2021-08-17

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