Visible-Light-Driven Furfural Oxidation over CuOx/Nb2O5

被引：5

作者：

Ren, Puning ^{[1
,2
]}

Zhou, Yue ^{[3
]}

Su, Kaiyi ^{[4
]}

Sun, Lulu ^{[1
]}

Luo, Nengchao ^{[1
]}

Wang, Feng ^{[1
]}

机构：

[1] Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] Zhengzhou Univ, Henan Inst Adv Technol, Zhengzhou 450003, Peoples R China

[4] Chinese Acad Sci, Key Lab Photochem Convers & Optoelect Mat, Tech Inst Phys & Chem, Beijing 100190, Peoples R China

来源：

CHEMISTRY-AN ASIAN JOURNAL | 2023年 / 18卷 / 22期

基金：

中国国家自然科学基金;

关键词：

CuOx/Nb2O5; photocatalysis; furfural; maleic anhydride; decarbonylation; CATALYTIC AEROBIC OXIDATION; MALEIC-ANHYDRIDE; SELECTIVE OXIDATION; ACID; PHOTOOXIDATION; PHOTOCATALYST; MECHANISM; TRANSITION; MORPHOLOGY; CONVERSION;

D O I：

10.1002/asia.202300732

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Maleic anhydride (MA) is an important polyester monomer that can be produced from oxidizing renewable furfural derived from biomass. However, MA generation from furfural requires harsh reaction conditions, and suffers from low efficiency and solvent corrosion. Herein, we design a Nb2O5 photocatalyst loaded of highly dispersed CuOx (CuOx/Nb2O5), which selectively catalyzes furfural oxidation to MA and the precursor (5-hydroxy-2(5H)-furanone, HF). Due to CuOx loading and forming a complex of ligand to metal charge transfer (LMCT) between the Nb2O5 surface and adsorbed furfural, the CuOx/Nb2O5 absorbs visible light to activate furfural though Nb2O5 has a large band-gap energy (3.2 eV). Singlet oxygen (O-1(2)) is the key active species for C-C bond cleavage and CO generation. MA and HF is produced with a combined yield of 59 % under optimized conditions. This work provides a mild way to provide renewable maleic anhydride via oxidative C-C bond cleavage.

引用

页数：5

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