甘油
甘油醛
光催化
锐钛矿
金红石
选择性
催化作用
化学
液相
降级(电信)
化学工程
材料科学
制浆造纸工业
有机化学
计算机科学
物理
酶
脱氢酶
工程类
热力学
电信
作者
Jie Yu,F. Dappozze,Juan Martín‐Gómez,Jesús Hidalgo-Carrillo,Alberto Marinas,P. Vernoux,A. Caravaca,C. Guillard
标识
DOI:10.1016/j.apcatb.2021.120616
摘要
Valorization of glycerol into high added-value products by photocatalysis can not only create good economic benefits, but also cater to the global low-carbon and energy-saving environmental protection needs. In this study we proposed, for the very first time, to perform the photooxidation of glycerol towards added-value products with homemade WO3 and commercial WO3/TiO2 (DTW5)). Their performance was compared with that of state-of-the-art TiO2-based photocatalysts (Anatase, Rutile, and P25). We found that, while TiO2 favours the total oxidation of glycerol, WO3-based materials exhibit an outstanding selectivity towards one of the most valuable oxidation products: glyceraldehyde. It was attributed to their enhanced acidity, which selectively activates CO bonds in glycerol and facilitates the further desorption of glyceraldehyde to the liquid phase. This study establishes therefore a new starting point towards the development of advanced materials for an efficient valorization of glycerol.
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