Photocatalytic Selective Oxidation of 5-Hydroxymethylfurfural to 2,5-Diformylfuran over Nb2O5 under Visible Light
Photocatalytic Selective Oxidation of 5-Hydroxymethylfurfural to 2,5-Diformylfuran over Nb2O5 under Visible Light
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DOI：
10.1021/acssuschemeng.7b00231
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发表时间：
2017-03
影响因子：
8.4
通讯作者：
Huili Zhang;Qi Wu;Cong Guo;Ying Wu;Tinghua Wu
中科院分区：
文献类型：
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作者：
Huili Zhang;Qi Wu;Cong Guo;Ying Wu;Tinghua Wu
光催化选择氧化生物质衍生物5-羟甲基糠醛（HMF）制备2，5-二甲酰基呋喃是一种环境友好、节能的工艺。制备了Nb_2O_5，并将其应用于可见光下HMF的氧化，尽管其带隙能量高于3.2 eV。在Nb 2 O 5催化剂上的反应过程遵循不同于普通氧化物半导体的特殊机理。考察了煅烧温度、入射波长、反应时间等因素对光催化性能的影响。Nb 2 O 5 -800在可见光照射下，以三氟甲苯为溶剂，氧气存在时，其性能最好。
The photocatalytic selective oxidation of biomass derivate compound 5-hydroxymethylfurfural (HMF) to 2,5-diformylfuran is an environmentally friendly and energy-saving process. Nb2O5 was prepared and applied in the oxidation of HMF under visible light, although its bandgap energy is higher than 3.2 eV. The reaction process follows a special mechanism over a Nb2O5 catalyst different from the normal oxide semiconductor. The effect of calcination temperature, incident wavelength, and reaction time on photocatalytic performance was investigated. Nb2O5-800 exhibits the best performance in the presence of O2 with benzotrifluoride as a solvent under visible light irradiation.